/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:36:12,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:36:12,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:36:12,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 14:36:12,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:36:12,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:36:12,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:36:12,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2021-03-11 14:36:12,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:36:12,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:36:12,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:36:12,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:36:12,684 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:36:12,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:36:12,684 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:36:12,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:36:12,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:36:12,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:36:12,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:36:12,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:36:12,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:36:12,685 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:36:12,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:36:12,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:36:12,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:36:12,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:36:12,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:36:12,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:36:12,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:36:12,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:36:12,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:36:12,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:36:12,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:36:12,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:36:12,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:36:12,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:36:12,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:36:12,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:36:12,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:36:12,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:36:12,961 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 14:36:12,961 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 14:36:12,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2021-03-11 14:36:12,962 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2021-03-11 14:36:13,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:36:13,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 14:36:13,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:36:13,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:36:13,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:36:13,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:36:13,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:36:13,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:36:13,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:36:13,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... [2021-03-11 14:36:13,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:36:13,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:36:13,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:36:13,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:36:13,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:36:13,108 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 14:36:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 14:36:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 14:36:13,108 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 14:36:13,108 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 14:36:13,108 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 14:36:13,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 14:36:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 14:36:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 14:36:13,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 14:36:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 14:36:13,109 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 14:36:13,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 14:36:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 14:36:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 14:36:13,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 14:36:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:36:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:36:13,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 14:36:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 14:36:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 14:36:13,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 14:36:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 14:36:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 14:36:13,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 14:36:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 14:36:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 14:36:13,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 14:36:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 14:36:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 14:36:13,112 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 14:36:13,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:36:13,311 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 14:36:13,312 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:36:13 BoogieIcfgContainer [2021-03-11 14:36:13,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:36:13,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:36:13,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:36:13,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:36:13,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:36:13" (1/2) ... [2021-03-11 14:36:13,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a026568 and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:36:13, skipping insertion in model container [2021-03-11 14:36:13,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:36:13" (2/2) ... [2021-03-11 14:36:13,317 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2021-03-11 14:36:13,321 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:36:13,321 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:36:13,324 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 14:36:13,324 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:36:13,564 INFO L149 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2021-03-11 14:36:13,578 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-03-11 14:36:13,602 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:36:13,603 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:36:13,603 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:36:13,603 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:36:13,603 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:36:13,603 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:36:13,603 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:36:13,603 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:36:13,622 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:36:13,638 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 120 transitions, 528 flow [2021-03-11 14:36:13,643 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 120 transitions, 528 flow [2021-03-11 14:36:13,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 120 transitions, 528 flow [2021-03-11 14:36:13,939 INFO L129 PetriNetUnfolder]: 1793/2334 cut-off events. [2021-03-11 14:36:13,939 INFO L130 PetriNetUnfolder]: For 2304/2304 co-relation queries the response was YES. [2021-03-11 14:36:13,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4666 conditions, 2334 events. 1793/2334 cut-off events. For 2304/2304 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 8920 event pairs, 0 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2090. Up to 630 conditions per place. [2021-03-11 14:36:13,987 INFO L116 LiptonReduction]: Number of co-enabled transitions 2736 [2021-03-11 14:36:14,176 INFO L131 LiptonReduction]: Checked pairs total: 11475 [2021-03-11 14:36:14,176 INFO L133 LiptonReduction]: Total number of compositions: 10 [2021-03-11 14:36:14,182 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 110 transitions, 508 flow [2021-03-11 14:36:15,805 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20196 states, 20194 states have (on average 5.962365058928395) internal successors, (120404), 20195 states have internal predecessors, (120404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:15,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 20196 states, 20194 states have (on average 5.962365058928395) internal successors, (120404), 20195 states have internal predecessors, (120404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:16,061 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:16,062 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:16,063 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:16,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:16,067 INFO L82 PathProgramCache]: Analyzing trace with hash 114387570, now seen corresponding path program 1 times [2021-03-11 14:36:16,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:16,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670468603] [2021-03-11 14:36:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:16,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:16,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:16,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:16,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:16,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:16,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:16,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670468603] [2021-03-11 14:36:16,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:16,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:16,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375500868] [2021-03-11 14:36:16,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:16,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:16,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:16,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:16,362 INFO L87 Difference]: Start difference. First operand has 20196 states, 20194 states have (on average 5.962365058928395) internal successors, (120404), 20195 states have internal predecessors, (120404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:16,696 INFO L93 Difference]: Finished difference Result 18916 states and 109908 transitions. [2021-03-11 14:36:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:16,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:16,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:16,880 INFO L225 Difference]: With dead ends: 18916 [2021-03-11 14:36:16,880 INFO L226 Difference]: Without dead ends: 18915 [2021-03-11 14:36:16,881 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18915 states. [2021-03-11 14:36:18,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18915 to 18915. [2021-03-11 14:36:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18915 states, 18914 states have (on average 5.810880829015544) internal successors, (109907), 18914 states have internal predecessors, (109907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18915 states to 18915 states and 109907 transitions. [2021-03-11 14:36:18,465 INFO L78 Accepts]: Start accepts. Automaton has 18915 states and 109907 transitions. Word has length 28 [2021-03-11 14:36:18,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:18,466 INFO L480 AbstractCegarLoop]: Abstraction has 18915 states and 109907 transitions. [2021-03-11 14:36:18,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:18,467 INFO L276 IsEmpty]: Start isEmpty. Operand 18915 states and 109907 transitions. [2021-03-11 14:36:18,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:18,570 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:18,570 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:18,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:36:18,571 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:18,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:18,571 INFO L82 PathProgramCache]: Analyzing trace with hash -520253774, now seen corresponding path program 1 times [2021-03-11 14:36:18,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:18,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546857136] [2021-03-11 14:36:18,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:18,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:18,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:18,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:18,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:18,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:18,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:18,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546857136] [2021-03-11 14:36:18,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:18,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:18,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704078136] [2021-03-11 14:36:18,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:18,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:18,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:18,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:18,613 INFO L87 Difference]: Start difference. First operand 18915 states and 109907 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:18,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:18,917 INFO L93 Difference]: Finished difference Result 15971 states and 88467 transitions. [2021-03-11 14:36:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:18,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:18,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:18,999 INFO L225 Difference]: With dead ends: 15971 [2021-03-11 14:36:18,999 INFO L226 Difference]: Without dead ends: 15971 [2021-03-11 14:36:19,000 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15971 states. [2021-03-11 14:36:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15971 to 15971. [2021-03-11 14:36:19,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15971 states, 15970 states have (on average 5.539574201628053) internal successors, (88467), 15970 states have internal predecessors, (88467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15971 states to 15971 states and 88467 transitions. [2021-03-11 14:36:19,906 INFO L78 Accepts]: Start accepts. Automaton has 15971 states and 88467 transitions. Word has length 28 [2021-03-11 14:36:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:19,906 INFO L480 AbstractCegarLoop]: Abstraction has 15971 states and 88467 transitions. [2021-03-11 14:36:19,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 15971 states and 88467 transitions. [2021-03-11 14:36:19,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:19,954 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:19,954 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:19,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:36:19,955 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:19,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1967135382, now seen corresponding path program 1 times [2021-03-11 14:36:19,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:19,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322127119] [2021-03-11 14:36:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:19,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:19,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:19,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:19,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:20,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:20,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322127119] [2021-03-11 14:36:20,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:20,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:20,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076889088] [2021-03-11 14:36:20,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:20,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:20,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:20,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:20,007 INFO L87 Difference]: Start difference. First operand 15971 states and 88467 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:20,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:20,105 INFO L93 Difference]: Finished difference Result 10243 states and 54163 transitions. [2021-03-11 14:36:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:20,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:20,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:20,167 INFO L225 Difference]: With dead ends: 10243 [2021-03-11 14:36:20,167 INFO L226 Difference]: Without dead ends: 10243 [2021-03-11 14:36:20,168 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2021-03-11 14:36:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 10243. [2021-03-11 14:36:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10243 states, 10242 states have (on average 5.288322593243507) internal successors, (54163), 10242 states have internal predecessors, (54163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10243 states to 10243 states and 54163 transitions. [2021-03-11 14:36:20,821 INFO L78 Accepts]: Start accepts. Automaton has 10243 states and 54163 transitions. Word has length 28 [2021-03-11 14:36:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:20,821 INFO L480 AbstractCegarLoop]: Abstraction has 10243 states and 54163 transitions. [2021-03-11 14:36:20,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 10243 states and 54163 transitions. [2021-03-11 14:36:20,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:20,848 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:20,848 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:20,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 14:36:20,848 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:20,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:20,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2067096892, now seen corresponding path program 1 times [2021-03-11 14:36:20,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:20,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953580497] [2021-03-11 14:36:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:20,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:20,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:20,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:20,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:20,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:20,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:20,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:20,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953580497] [2021-03-11 14:36:20,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:20,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:20,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847500830] [2021-03-11 14:36:20,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:20,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:20,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:20,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:20,870 INFO L87 Difference]: Start difference. First operand 10243 states and 54163 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:20,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:20,942 INFO L93 Difference]: Finished difference Result 9987 states and 52243 transitions. [2021-03-11 14:36:20,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:20,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:20,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:20,974 INFO L225 Difference]: With dead ends: 9987 [2021-03-11 14:36:20,974 INFO L226 Difference]: Without dead ends: 9987 [2021-03-11 14:36:20,975 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2021-03-11 14:36:21,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 9987. [2021-03-11 14:36:21,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9987 states, 9986 states have (on average 5.231624273983577) internal successors, (52243), 9986 states have internal predecessors, (52243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9987 states to 9987 states and 52243 transitions. [2021-03-11 14:36:21,556 INFO L78 Accepts]: Start accepts. Automaton has 9987 states and 52243 transitions. Word has length 28 [2021-03-11 14:36:21,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:21,557 INFO L480 AbstractCegarLoop]: Abstraction has 9987 states and 52243 transitions. [2021-03-11 14:36:21,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 9987 states and 52243 transitions. [2021-03-11 14:36:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:21,581 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:21,581 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:21,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 14:36:21,582 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:21,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:21,582 INFO L82 PathProgramCache]: Analyzing trace with hash -77951046, now seen corresponding path program 1 times [2021-03-11 14:36:21,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:21,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024994349] [2021-03-11 14:36:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:21,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:21,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:21,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:21,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:21,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:21,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:21,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024994349] [2021-03-11 14:36:21,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:21,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:21,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776363895] [2021-03-11 14:36:21,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:21,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:21,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:21,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:21,618 INFO L87 Difference]: Start difference. First operand 9987 states and 52243 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:21,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:21,658 INFO L93 Difference]: Finished difference Result 6171 states and 30927 transitions. [2021-03-11 14:36:21,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:21,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:21,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:21,676 INFO L225 Difference]: With dead ends: 6171 [2021-03-11 14:36:21,676 INFO L226 Difference]: Without dead ends: 6171 [2021-03-11 14:36:21,677 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:21,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6171 states. [2021-03-11 14:36:22,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 6171. [2021-03-11 14:36:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6171 states, 6170 states have (on average 5.012479740680713) internal successors, (30927), 6170 states have internal predecessors, (30927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6171 states to 6171 states and 30927 transitions. [2021-03-11 14:36:22,050 INFO L78 Accepts]: Start accepts. Automaton has 6171 states and 30927 transitions. Word has length 28 [2021-03-11 14:36:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:22,055 INFO L480 AbstractCegarLoop]: Abstraction has 6171 states and 30927 transitions. [2021-03-11 14:36:22,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 6171 states and 30927 transitions. [2021-03-11 14:36:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:22,069 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:22,069 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:22,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 14:36:22,070 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:22,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:22,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1337464426, now seen corresponding path program 1 times [2021-03-11 14:36:22,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:22,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877623145] [2021-03-11 14:36:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:22,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:22,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:22,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:22,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877623145] [2021-03-11 14:36:22,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:22,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:22,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970279346] [2021-03-11 14:36:22,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:22,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:22,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:22,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:22,099 INFO L87 Difference]: Start difference. First operand 6171 states and 30927 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:22,215 INFO L93 Difference]: Finished difference Result 3883 states and 18511 transitions. [2021-03-11 14:36:22,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:22,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:22,232 INFO L225 Difference]: With dead ends: 3883 [2021-03-11 14:36:22,232 INFO L226 Difference]: Without dead ends: 3883 [2021-03-11 14:36:22,233 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:22,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3883 states. [2021-03-11 14:36:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3883 to 3883. [2021-03-11 14:36:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3883 states, 3882 states have (on average 4.768418341061309) internal successors, (18511), 3882 states have internal predecessors, (18511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 18511 transitions. [2021-03-11 14:36:22,436 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 18511 transitions. Word has length 28 [2021-03-11 14:36:22,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:22,437 INFO L480 AbstractCegarLoop]: Abstraction has 3883 states and 18511 transitions. [2021-03-11 14:36:22,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 18511 transitions. [2021-03-11 14:36:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:22,462 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:22,462 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:22,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 14:36:22,463 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:22,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:22,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1461842622, now seen corresponding path program 1 times [2021-03-11 14:36:22,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:22,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201133032] [2021-03-11 14:36:22,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:22,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:22,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:22,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:22,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201133032] [2021-03-11 14:36:22,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:22,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:22,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735449984] [2021-03-11 14:36:22,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:22,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:22,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:22,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:22,519 INFO L87 Difference]: Start difference. First operand 3883 states and 18511 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:22,549 INFO L93 Difference]: Finished difference Result 2539 states and 11503 transitions. [2021-03-11 14:36:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:22,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:22,558 INFO L225 Difference]: With dead ends: 2539 [2021-03-11 14:36:22,558 INFO L226 Difference]: Without dead ends: 2539 [2021-03-11 14:36:22,568 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2021-03-11 14:36:22,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2539. [2021-03-11 14:36:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2538 states have (on average 4.53230890464933) internal successors, (11503), 2538 states have internal predecessors, (11503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 11503 transitions. [2021-03-11 14:36:22,654 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 11503 transitions. Word has length 28 [2021-03-11 14:36:22,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:22,654 INFO L480 AbstractCegarLoop]: Abstraction has 2539 states and 11503 transitions. [2021-03-11 14:36:22,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 11503 transitions. [2021-03-11 14:36:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:22,658 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:22,659 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:22,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 14:36:22,659 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:22,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1283995022, now seen corresponding path program 1 times [2021-03-11 14:36:22,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:22,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085885503] [2021-03-11 14:36:22,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:22,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:22,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:36:22,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:22,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085885503] [2021-03-11 14:36:22,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:22,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:36:22,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562872139] [2021-03-11 14:36:22,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:36:22,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:22,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:36:22,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:22,689 INFO L87 Difference]: Start difference. First operand 2539 states and 11503 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:22,708 INFO L93 Difference]: Finished difference Result 1535 states and 6913 transitions. [2021-03-11 14:36:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:36:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:22,712 INFO L225 Difference]: With dead ends: 1535 [2021-03-11 14:36:22,712 INFO L226 Difference]: Without dead ends: 1535 [2021-03-11 14:36:22,713 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:36:22,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2021-03-11 14:36:22,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1535. [2021-03-11 14:36:22,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 4.50651890482399) internal successors, (6913), 1534 states have internal predecessors, (6913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6913 transitions. [2021-03-11 14:36:22,760 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6913 transitions. Word has length 28 [2021-03-11 14:36:22,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:22,760 INFO L480 AbstractCegarLoop]: Abstraction has 1535 states and 6913 transitions. [2021-03-11 14:36:22,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:22,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6913 transitions. [2021-03-11 14:36:22,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:22,764 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:22,764 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:22,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 14:36:22,764 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:22,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:22,765 INFO L82 PathProgramCache]: Analyzing trace with hash 662697718, now seen corresponding path program 1 times [2021-03-11 14:36:22,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:22,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813584286] [2021-03-11 14:36:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:22,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:22,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:22,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:22,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:22,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:22,882 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:22,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:22,900 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:22,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:22,924 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:22,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:22,953 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:22,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:23,017 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:23,069 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:23,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:23,121 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:23,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813584286] [2021-03-11 14:36:23,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:23,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:23,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140684738] [2021-03-11 14:36:23,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:23,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:23,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:23,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:23,168 INFO L87 Difference]: Start difference. First operand 1535 states and 6913 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:23,370 INFO L93 Difference]: Finished difference Result 3001 states and 11928 transitions. [2021-03-11 14:36:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:23,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:23,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:23,379 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:36:23,379 INFO L226 Difference]: Without dead ends: 2986 [2021-03-11 14:36:23,380 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 320.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:23,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2021-03-11 14:36:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1583. [2021-03-11 14:36:23,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.49936788874842) internal successors, (7118), 1582 states have internal predecessors, (7118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:23,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7118 transitions. [2021-03-11 14:36:23,456 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7118 transitions. Word has length 28 [2021-03-11 14:36:23,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:23,456 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7118 transitions. [2021-03-11 14:36:23,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7118 transitions. [2021-03-11 14:36:23,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:23,460 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:23,460 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:23,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 14:36:23,460 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:23,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:23,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1407400216, now seen corresponding path program 2 times [2021-03-11 14:36:23,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:23,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538599163] [2021-03-11 14:36:23,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:23,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:23,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:23,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:23,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:23,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:23,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:23,558 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:23,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:23,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:23,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:23,603 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:23,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:23,647 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:23,706 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:23,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:23,750 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:23,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:23,825 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:23,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:23,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538599163] [2021-03-11 14:36:23,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:23,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:23,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997474374] [2021-03-11 14:36:23,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:23,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:23,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:23,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:23,871 INFO L87 Difference]: Start difference. First operand 1583 states and 7118 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:24,112 INFO L93 Difference]: Finished difference Result 3002 states and 11925 transitions. [2021-03-11 14:36:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:24,112 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:24,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:24,119 INFO L225 Difference]: With dead ends: 3002 [2021-03-11 14:36:24,119 INFO L226 Difference]: Without dead ends: 2981 [2021-03-11 14:36:24,123 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 337.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:24,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-03-11 14:36:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1578. [2021-03-11 14:36:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.5047558655675335) internal successors, (7104), 1577 states have internal predecessors, (7104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7104 transitions. [2021-03-11 14:36:24,187 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7104 transitions. Word has length 28 [2021-03-11 14:36:24,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:24,187 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7104 transitions. [2021-03-11 14:36:24,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:24,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7104 transitions. [2021-03-11 14:36:24,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:24,191 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:24,191 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:24,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 14:36:24,191 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:24,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:24,191 INFO L82 PathProgramCache]: Analyzing trace with hash -2021328620, now seen corresponding path program 3 times [2021-03-11 14:36:24,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:24,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930698209] [2021-03-11 14:36:24,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:24,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:24,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:24,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:24,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:24,228 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:24,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:24,236 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:24,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:24,248 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:24,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:24,264 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:24,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:24,287 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:24,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:24,335 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:24,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:24,398 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:24,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:24,449 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:24,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930698209] [2021-03-11 14:36:24,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:24,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:24,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856247508] [2021-03-11 14:36:24,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:24,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:24,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:24,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:24,487 INFO L87 Difference]: Start difference. First operand 1578 states and 7104 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:24,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:24,640 INFO L93 Difference]: Finished difference Result 3006 states and 11932 transitions. [2021-03-11 14:36:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:24,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:24,646 INFO L225 Difference]: With dead ends: 3006 [2021-03-11 14:36:24,646 INFO L226 Difference]: Without dead ends: 2991 [2021-03-11 14:36:24,647 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 281.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:24,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-03-11 14:36:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1584. [2021-03-11 14:36:24,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.494630448515477) internal successors, (7115), 1583 states have internal predecessors, (7115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7115 transitions. [2021-03-11 14:36:24,702 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7115 transitions. Word has length 28 [2021-03-11 14:36:24,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:24,702 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7115 transitions. [2021-03-11 14:36:24,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:24,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7115 transitions. [2021-03-11 14:36:24,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:24,705 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:24,705 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:24,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 14:36:24,705 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:24,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:24,706 INFO L82 PathProgramCache]: Analyzing trace with hash -531923624, now seen corresponding path program 4 times [2021-03-11 14:36:24,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:24,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915449696] [2021-03-11 14:36:24,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:24,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:24,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:24,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:24,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:24,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:24,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:24,748 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:24,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:24,759 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:24,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:24,775 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:24,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:24,796 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:24,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:24,838 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:24,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:24,892 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:24,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:24,936 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:24,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:24,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915449696] [2021-03-11 14:36:24,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:24,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:24,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602681267] [2021-03-11 14:36:24,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:24,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:24,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:24,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:24,973 INFO L87 Difference]: Start difference. First operand 1584 states and 7115 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:25,096 INFO L93 Difference]: Finished difference Result 3011 states and 11936 transitions. [2021-03-11 14:36:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:25,096 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:25,103 INFO L225 Difference]: With dead ends: 3011 [2021-03-11 14:36:25,104 INFO L226 Difference]: Without dead ends: 2985 [2021-03-11 14:36:25,104 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 245.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2021-03-11 14:36:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1578. [2021-03-11 14:36:25,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.500951173113506) internal successors, (7098), 1577 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7098 transitions. [2021-03-11 14:36:25,174 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7098 transitions. Word has length 28 [2021-03-11 14:36:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:25,174 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7098 transitions. [2021-03-11 14:36:25,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7098 transitions. [2021-03-11 14:36:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:25,178 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:25,178 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:25,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 14:36:25,178 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:25,178 INFO L82 PathProgramCache]: Analyzing trace with hash 334314836, now seen corresponding path program 5 times [2021-03-11 14:36:25,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:25,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649865235] [2021-03-11 14:36:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:25,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:25,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:25,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:25,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:25,234 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:25,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:25,242 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:25,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:25,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:25,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:25,271 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:25,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:25,289 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:25,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:25,339 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:25,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:25,397 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:25,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:25,442 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:25,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:25,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649865235] [2021-03-11 14:36:25,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:25,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:25,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210131466] [2021-03-11 14:36:25,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:25,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:25,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:25,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:25,482 INFO L87 Difference]: Start difference. First operand 1578 states and 7098 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:25,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:25,642 INFO L93 Difference]: Finished difference Result 3009 states and 11933 transitions. [2021-03-11 14:36:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:25,643 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:25,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:25,650 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:36:25,651 INFO L226 Difference]: Without dead ends: 2993 [2021-03-11 14:36:25,651 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 276.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:25,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-03-11 14:36:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 1585. [2021-03-11 14:36:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.4892676767676765) internal successors, (7111), 1584 states have internal predecessors, (7111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7111 transitions. [2021-03-11 14:36:25,736 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7111 transitions. Word has length 28 [2021-03-11 14:36:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:25,736 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7111 transitions. [2021-03-11 14:36:25,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7111 transitions. [2021-03-11 14:36:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:25,739 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:25,740 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:25,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 14:36:25,740 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1079017334, now seen corresponding path program 6 times [2021-03-11 14:36:25,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:25,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138114720] [2021-03-11 14:36:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:25,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:25,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:25,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:25,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:25,808 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:25,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:25,818 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:25,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:25,832 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:25,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:25,851 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:25,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:25,874 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:25,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:25,918 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:25,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:25,973 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:25,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:26,023 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:26,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:26,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138114720] [2021-03-11 14:36:26,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:26,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:26,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429913899] [2021-03-11 14:36:26,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:26,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:26,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:26,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:26,070 INFO L87 Difference]: Start difference. First operand 1585 states and 7111 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:26,212 INFO L93 Difference]: Finished difference Result 3013 states and 11934 transitions. [2021-03-11 14:36:26,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:26,213 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:26,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:26,220 INFO L225 Difference]: With dead ends: 3013 [2021-03-11 14:36:26,220 INFO L226 Difference]: Without dead ends: 2980 [2021-03-11 14:36:26,221 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2021-03-11 14:36:26,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 1572. [2021-03-11 14:36:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.507320178230427) internal successors, (7081), 1571 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7081 transitions. [2021-03-11 14:36:26,302 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7081 transitions. Word has length 28 [2021-03-11 14:36:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:26,302 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7081 transitions. [2021-03-11 14:36:26,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7081 transitions. [2021-03-11 14:36:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:26,305 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:26,305 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:26,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 14:36:26,306 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:26,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:26,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1382710192, now seen corresponding path program 7 times [2021-03-11 14:36:26,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:26,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209580497] [2021-03-11 14:36:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:26,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:26,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:26,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:26,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:26,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:26,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:26,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:26,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:26,399 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:26,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:26,418 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:26,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:26,439 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:26,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:26,468 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:26,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:26,504 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:26,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:26,550 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:26,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:26,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209580497] [2021-03-11 14:36:26,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:26,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:26,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58077821] [2021-03-11 14:36:26,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:26,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:26,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:26,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:26,594 INFO L87 Difference]: Start difference. First operand 1572 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:26,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:26,754 INFO L93 Difference]: Finished difference Result 2996 states and 11912 transitions. [2021-03-11 14:36:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:26,755 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:26,762 INFO L225 Difference]: With dead ends: 2996 [2021-03-11 14:36:26,763 INFO L226 Difference]: Without dead ends: 2981 [2021-03-11 14:36:26,763 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:26,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-03-11 14:36:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1582. [2021-03-11 14:36:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.496521189120809) internal successors, (7109), 1581 states have internal predecessors, (7109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7109 transitions. [2021-03-11 14:36:26,844 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7109 transitions. Word has length 28 [2021-03-11 14:36:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:26,844 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7109 transitions. [2021-03-11 14:36:26,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7109 transitions. [2021-03-11 14:36:26,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:26,847 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:26,847 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:26,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 14:36:26,847 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:26,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:26,848 INFO L82 PathProgramCache]: Analyzing trace with hash 2127412690, now seen corresponding path program 8 times [2021-03-11 14:36:26,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:26,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750412586] [2021-03-11 14:36:26,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:26,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:26,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:26,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:26,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:26,889 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:26,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:26,898 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:26,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:26,912 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:26,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:26,929 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:26,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:26,953 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:26,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:26,984 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:26,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:27,025 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:27,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:27,069 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:27,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:27,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750412586] [2021-03-11 14:36:27,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:27,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:27,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653695601] [2021-03-11 14:36:27,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:27,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:27,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:27,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:27,109 INFO L87 Difference]: Start difference. First operand 1582 states and 7109 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:27,246 INFO L93 Difference]: Finished difference Result 2997 states and 11909 transitions. [2021-03-11 14:36:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:27,252 INFO L225 Difference]: With dead ends: 2997 [2021-03-11 14:36:27,252 INFO L226 Difference]: Without dead ends: 2976 [2021-03-11 14:36:27,253 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:27,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-03-11 14:36:27,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1577. [2021-03-11 14:36:27,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.501903553299492) internal successors, (7095), 1576 states have internal predecessors, (7095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7095 transitions. [2021-03-11 14:36:27,308 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7095 transitions. Word has length 28 [2021-03-11 14:36:27,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:27,308 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7095 transitions. [2021-03-11 14:36:27,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7095 transitions. [2021-03-11 14:36:27,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:27,310 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:27,311 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:27,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 14:36:27,311 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:27,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:27,311 INFO L82 PathProgramCache]: Analyzing trace with hash 309624812, now seen corresponding path program 9 times [2021-03-11 14:36:27,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:27,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528978091] [2021-03-11 14:36:27,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:27,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:27,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:27,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:27,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:27,342 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:27,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:27,351 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:27,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:27,364 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:27,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:27,380 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:27,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:27,401 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:27,426 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:27,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:27,487 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:27,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:27,539 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:27,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:27,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528978091] [2021-03-11 14:36:27,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:27,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:27,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309080542] [2021-03-11 14:36:27,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:27,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:27,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:27,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:27,585 INFO L87 Difference]: Start difference. First operand 1577 states and 7095 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:27,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:27,720 INFO L93 Difference]: Finished difference Result 2998 states and 11911 transitions. [2021-03-11 14:36:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:27,721 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:27,728 INFO L225 Difference]: With dead ends: 2998 [2021-03-11 14:36:27,728 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:36:27,728 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 281.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:36:27,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1582. [2021-03-11 14:36:27,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.493358633776091) internal successors, (7104), 1581 states have internal predecessors, (7104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7104 transitions. [2021-03-11 14:36:27,794 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7104 transitions. Word has length 28 [2021-03-11 14:36:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:27,794 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7104 transitions. [2021-03-11 14:36:27,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7104 transitions. [2021-03-11 14:36:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:27,796 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:27,796 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:27,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 14:36:27,797 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:27,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1751234990, now seen corresponding path program 10 times [2021-03-11 14:36:27,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:27,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079152765] [2021-03-11 14:36:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:27,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:27,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:27,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:27,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:27,833 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:27,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:27,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:27,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:27,854 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:27,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:27,872 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:27,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:27,895 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:27,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:27,925 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:27,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:27,991 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:27,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:28,036 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:28,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:28,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:28,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079152765] [2021-03-11 14:36:28,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:28,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:28,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869098978] [2021-03-11 14:36:28,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:28,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:28,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:28,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:28,077 INFO L87 Difference]: Start difference. First operand 1582 states and 7104 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:28,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:28,234 INFO L93 Difference]: Finished difference Result 3001 states and 11912 transitions. [2021-03-11 14:36:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:28,235 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:28,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:28,240 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:36:28,240 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:36:28,241 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 285.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:36:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1577. [2021-03-11 14:36:28,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.498730964467005) internal successors, (7090), 1576 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:28,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7090 transitions. [2021-03-11 14:36:28,294 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7090 transitions. Word has length 28 [2021-03-11 14:36:28,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:28,295 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7090 transitions. [2021-03-11 14:36:28,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:28,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7090 transitions. [2021-03-11 14:36:28,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:28,297 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:28,297 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:28,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 14:36:28,297 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:28,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:28,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1629699028, now seen corresponding path program 11 times [2021-03-11 14:36:28,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:28,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431262032] [2021-03-11 14:36:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:28,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:28,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:28,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:28,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:28,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:28,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:28,341 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:28,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:28,356 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:28,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:28,372 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:28,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:28,392 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:28,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:28,418 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:28,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:28,455 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:28,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:28,512 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:28,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:28,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431262032] [2021-03-11 14:36:28,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:28,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:28,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871565375] [2021-03-11 14:36:28,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:28,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:28,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:28,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:28,553 INFO L87 Difference]: Start difference. First operand 1577 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:28,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:28,706 INFO L93 Difference]: Finished difference Result 3001 states and 11913 transitions. [2021-03-11 14:36:28,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:28,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:28,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:28,714 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:36:28,714 INFO L226 Difference]: Without dead ends: 2985 [2021-03-11 14:36:28,715 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:28,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2021-03-11 14:36:28,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1583. [2021-03-11 14:36:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.488621997471555) internal successors, (7101), 1582 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7101 transitions. [2021-03-11 14:36:28,771 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7101 transitions. Word has length 28 [2021-03-11 14:36:28,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:28,771 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7101 transitions. [2021-03-11 14:36:28,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:28,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7101 transitions. [2021-03-11 14:36:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:28,773 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:28,773 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:28,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 14:36:28,773 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:28,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:28,773 INFO L82 PathProgramCache]: Analyzing trace with hash -140294032, now seen corresponding path program 12 times [2021-03-11 14:36:28,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:28,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350111564] [2021-03-11 14:36:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:28,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:28,811 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:28,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:28,825 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:28,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:28,842 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:28,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:28,864 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:28,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:28,893 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:28,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:28,932 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:28,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:28,980 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:28,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:29,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:29,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350111564] [2021-03-11 14:36:29,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:29,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:29,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786270359] [2021-03-11 14:36:29,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:29,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:29,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:29,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:29,028 INFO L87 Difference]: Start difference. First operand 1583 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:29,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:29,185 INFO L93 Difference]: Finished difference Result 3003 states and 11911 transitions. [2021-03-11 14:36:29,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:29,185 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:29,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:29,191 INFO L225 Difference]: With dead ends: 3003 [2021-03-11 14:36:29,191 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:36:29,191 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 284.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:36:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1572. [2021-03-11 14:36:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.504137492043284) internal successors, (7076), 1571 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7076 transitions. [2021-03-11 14:36:29,245 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7076 transitions. Word has length 28 [2021-03-11 14:36:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:29,245 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7076 transitions. [2021-03-11 14:36:29,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7076 transitions. [2021-03-11 14:36:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:29,247 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:29,247 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:29,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 14:36:29,247 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:29,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:29,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1393213296, now seen corresponding path program 13 times [2021-03-11 14:36:29,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:29,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545839641] [2021-03-11 14:36:29,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:29,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:29,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:29,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:29,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:29,277 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:29,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:29,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:29,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:29,297 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:29,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:29,314 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:29,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:29,335 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:29,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:29,384 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:29,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:29,446 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:29,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:29,493 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:29,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:29,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545839641] [2021-03-11 14:36:29,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:29,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:29,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995753077] [2021-03-11 14:36:29,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:29,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:29,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:29,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:29,537 INFO L87 Difference]: Start difference. First operand 1572 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:29,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:29,683 INFO L93 Difference]: Finished difference Result 3012 states and 11939 transitions. [2021-03-11 14:36:29,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:29,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:29,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:29,690 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:36:29,690 INFO L226 Difference]: Without dead ends: 2997 [2021-03-11 14:36:29,691 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 296.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:29,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-03-11 14:36:29,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 1585. [2021-03-11 14:36:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.4892676767676765) internal successors, (7111), 1584 states have internal predecessors, (7111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7111 transitions. [2021-03-11 14:36:29,748 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7111 transitions. Word has length 28 [2021-03-11 14:36:29,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:29,749 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7111 transitions. [2021-03-11 14:36:29,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:29,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7111 transitions. [2021-03-11 14:36:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:29,752 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:29,752 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:29,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 14:36:29,752 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:29,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:29,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1412349004, now seen corresponding path program 14 times [2021-03-11 14:36:29,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:29,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807847669] [2021-03-11 14:36:29,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:29,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:29,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:29,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:29,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:29,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:29,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:29,790 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:29,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:29,803 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:29,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:29,821 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:29,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:29,844 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:29,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:29,895 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:29,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:29,948 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:29,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:29,990 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:29,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:30,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:30,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807847669] [2021-03-11 14:36:30,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:30,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:30,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394055948] [2021-03-11 14:36:30,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:30,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:30,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:30,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:30,026 INFO L87 Difference]: Start difference. First operand 1585 states and 7111 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:30,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:30,191 INFO L93 Difference]: Finished difference Result 3017 states and 11943 transitions. [2021-03-11 14:36:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:30,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:30,199 INFO L225 Difference]: With dead ends: 3017 [2021-03-11 14:36:30,199 INFO L226 Difference]: Without dead ends: 2991 [2021-03-11 14:36:30,200 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:30,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-03-11 14:36:30,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1579. [2021-03-11 14:36:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.495564005069708) internal successors, (7094), 1578 states have internal predecessors, (7094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7094 transitions. [2021-03-11 14:36:30,275 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7094 transitions. Word has length 28 [2021-03-11 14:36:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:30,275 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7094 transitions. [2021-03-11 14:36:30,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7094 transitions. [2021-03-11 14:36:30,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:30,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:30,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:30,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 14:36:30,278 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:30,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:30,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1290813042, now seen corresponding path program 15 times [2021-03-11 14:36:30,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:30,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934586749] [2021-03-11 14:36:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:30,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:30,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:30,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:30,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:30,308 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:30,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:30,317 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:30,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:30,329 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:30,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:30,347 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:30,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:30,370 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:30,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:30,426 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:30,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:30,482 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:30,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:30,527 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:30,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:30,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934586749] [2021-03-11 14:36:30,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:30,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:30,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925422939] [2021-03-11 14:36:30,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:30,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:30,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:30,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:30,567 INFO L87 Difference]: Start difference. First operand 1579 states and 7094 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:30,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:30,728 INFO L93 Difference]: Finished difference Result 3009 states and 11928 transitions. [2021-03-11 14:36:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:30,729 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:30,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:30,734 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:36:30,734 INFO L226 Difference]: Without dead ends: 2994 [2021-03-11 14:36:30,734 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 293.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:30,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2021-03-11 14:36:30,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1584. [2021-03-11 14:36:30,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.487049905243209) internal successors, (7103), 1583 states have internal predecessors, (7103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7103 transitions. [2021-03-11 14:36:30,788 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7103 transitions. Word has length 28 [2021-03-11 14:36:30,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:30,788 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7103 transitions. [2021-03-11 14:36:30,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7103 transitions. [2021-03-11 14:36:30,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:30,790 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:30,790 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:30,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 14:36:30,790 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:30,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:30,790 INFO L82 PathProgramCache]: Analyzing trace with hash 943294452, now seen corresponding path program 16 times [2021-03-11 14:36:30,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:30,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144004734] [2021-03-11 14:36:30,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:30,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:30,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:30,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:30,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:30,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:30,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:30,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:30,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:30,846 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:30,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:30,864 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:30,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:30,884 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:30,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:30,927 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:30,981 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:30,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:31,040 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:31,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:31,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144004734] [2021-03-11 14:36:31,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:31,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:31,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75906839] [2021-03-11 14:36:31,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:31,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:31,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:31,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:31,081 INFO L87 Difference]: Start difference. First operand 1584 states and 7103 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:31,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:31,229 INFO L93 Difference]: Finished difference Result 3012 states and 11929 transitions. [2021-03-11 14:36:31,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:31,230 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:31,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:31,235 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:36:31,235 INFO L226 Difference]: Without dead ends: 2989 [2021-03-11 14:36:31,235 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 286.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-03-11 14:36:31,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1579. [2021-03-11 14:36:31,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.492395437262357) internal successors, (7089), 1578 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:31,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7089 transitions. [2021-03-11 14:36:31,289 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7089 transitions. Word has length 28 [2021-03-11 14:36:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:31,289 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7089 transitions. [2021-03-11 14:36:31,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7089 transitions. [2021-03-11 14:36:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:31,291 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:31,291 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:31,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 14:36:31,292 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:31,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:31,292 INFO L82 PathProgramCache]: Analyzing trace with hash -874493426, now seen corresponding path program 17 times [2021-03-11 14:36:31,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:31,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914507556] [2021-03-11 14:36:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:31,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:31,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:31,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:31,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:31,321 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:31,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:31,328 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:31,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:31,340 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:31,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:31,356 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:31,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:31,377 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:31,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:31,424 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:36:31,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:36:31,466 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:31,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:31,511 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:31,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:31,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914507556] [2021-03-11 14:36:31,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:31,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:31,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798163494] [2021-03-11 14:36:31,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:31,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:31,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:31,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:31,553 INFO L87 Difference]: Start difference. First operand 1579 states and 7089 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:31,673 INFO L93 Difference]: Finished difference Result 3024 states and 11953 transitions. [2021-03-11 14:36:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:31,673 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:31,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:31,679 INFO L225 Difference]: With dead ends: 3024 [2021-03-11 14:36:31,679 INFO L226 Difference]: Without dead ends: 3004 [2021-03-11 14:36:31,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:31,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2021-03-11 14:36:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 1589. [2021-03-11 14:36:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 4.474811083123425) internal successors, (7106), 1588 states have internal predecessors, (7106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 7106 transitions. [2021-03-11 14:36:31,735 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 7106 transitions. Word has length 28 [2021-03-11 14:36:31,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:31,735 INFO L480 AbstractCegarLoop]: Abstraction has 1589 states and 7106 transitions. [2021-03-11 14:36:31,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:31,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 7106 transitions. [2021-03-11 14:36:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:31,737 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:31,737 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:31,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 14:36:31,737 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:31,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:31,737 INFO L82 PathProgramCache]: Analyzing trace with hash -129790928, now seen corresponding path program 18 times [2021-03-11 14:36:31,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:31,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899042482] [2021-03-11 14:36:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:31,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:31,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:31,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:31,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:31,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:31,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:31,773 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:31,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:31,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:31,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:31,805 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:31,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:31,829 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:31,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:31,885 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:36:31,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:36:31,916 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:31,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:31,953 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:31,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:31,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:31,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899042482] [2021-03-11 14:36:31,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:31,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:31,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177994576] [2021-03-11 14:36:31,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:31,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:31,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:31,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:31,986 INFO L87 Difference]: Start difference. First operand 1589 states and 7106 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:32,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:32,131 INFO L93 Difference]: Finished difference Result 3022 states and 11941 transitions. [2021-03-11 14:36:32,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:32,132 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:32,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:32,137 INFO L225 Difference]: With dead ends: 3022 [2021-03-11 14:36:32,137 INFO L226 Difference]: Without dead ends: 2987 [2021-03-11 14:36:32,138 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 264.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:32,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2021-03-11 14:36:32,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1572. [2021-03-11 14:36:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.499681731381286) internal successors, (7069), 1571 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:32,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7069 transitions. [2021-03-11 14:36:32,191 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7069 transitions. Word has length 28 [2021-03-11 14:36:32,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:32,192 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7069 transitions. [2021-03-11 14:36:32,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:32,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7069 transitions. [2021-03-11 14:36:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:32,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:32,195 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:32,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 14:36:32,195 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:32,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:32,195 INFO L82 PathProgramCache]: Analyzing trace with hash -2146548398, now seen corresponding path program 19 times [2021-03-11 14:36:32,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:32,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453591695] [2021-03-11 14:36:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:32,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:32,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:32,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:32,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:32,222 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:32,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:32,230 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:32,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:32,242 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:32,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:32,259 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:32,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:32,279 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:32,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:32,305 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:32,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:32,354 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:32,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:32,398 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:32,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:32,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:32,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453591695] [2021-03-11 14:36:32,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:32,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:32,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119413630] [2021-03-11 14:36:32,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:32,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:32,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:32,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:32,430 INFO L87 Difference]: Start difference. First operand 1572 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:32,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:32,596 INFO L93 Difference]: Finished difference Result 3019 states and 11951 transitions. [2021-03-11 14:36:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:32,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:32,604 INFO L225 Difference]: With dead ends: 3019 [2021-03-11 14:36:32,604 INFO L226 Difference]: Without dead ends: 3003 [2021-03-11 14:36:32,605 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 244.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2021-03-11 14:36:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 1587. [2021-03-11 14:36:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.48297604035309) internal successors, (7110), 1586 states have internal predecessors, (7110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7110 transitions. [2021-03-11 14:36:32,676 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7110 transitions. Word has length 28 [2021-03-11 14:36:32,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:32,676 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7110 transitions. [2021-03-11 14:36:32,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:32,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7110 transitions. [2021-03-11 14:36:32,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:32,678 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:32,678 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:32,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 14:36:32,678 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:32,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:32,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1401845900, now seen corresponding path program 20 times [2021-03-11 14:36:32,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:32,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733408904] [2021-03-11 14:36:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:32,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:32,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:32,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:32,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:32,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:32,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:32,714 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:32,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:32,726 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:32,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:32,746 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:32,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:32,768 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:32,798 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:32,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:32,857 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:32,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:32,895 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:32,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:32,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733408904] [2021-03-11 14:36:32,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:32,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:32,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252620644] [2021-03-11 14:36:32,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:32,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:32,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:32,927 INFO L87 Difference]: Start difference. First operand 1587 states and 7110 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:33,046 INFO L93 Difference]: Finished difference Result 3023 states and 11952 transitions. [2021-03-11 14:36:33,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:33,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:33,052 INFO L225 Difference]: With dead ends: 3023 [2021-03-11 14:36:33,053 INFO L226 Difference]: Without dead ends: 2996 [2021-03-11 14:36:33,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 245.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2021-03-11 14:36:33,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 1580. [2021-03-11 14:36:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.490183660544648) internal successors, (7090), 1579 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7090 transitions. [2021-03-11 14:36:33,109 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7090 transitions. Word has length 28 [2021-03-11 14:36:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:33,109 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7090 transitions. [2021-03-11 14:36:33,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7090 transitions. [2021-03-11 14:36:33,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:33,111 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:33,111 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:33,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 14:36:33,111 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:33,111 INFO L82 PathProgramCache]: Analyzing trace with hash -535607440, now seen corresponding path program 21 times [2021-03-11 14:36:33,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:33,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310524964] [2021-03-11 14:36:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:33,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:33,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:33,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:33,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:33,137 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:33,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:33,145 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:33,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:33,157 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:33,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:33,174 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:33,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:33,195 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:33,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:33,222 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:33,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:33,253 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:33,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:33,290 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:33,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:33,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:33,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310524964] [2021-03-11 14:36:33,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:33,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:33,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067422639] [2021-03-11 14:36:33,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:33,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:33,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:33,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:33,324 INFO L87 Difference]: Start difference. First operand 1580 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:33,463 INFO L93 Difference]: Finished difference Result 3016 states and 11939 transitions. [2021-03-11 14:36:33,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:33,463 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:33,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:33,469 INFO L225 Difference]: With dead ends: 3016 [2021-03-11 14:36:33,469 INFO L226 Difference]: Without dead ends: 3000 [2021-03-11 14:36:33,470 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2021-03-11 14:36:33,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1586. [2021-03-11 14:36:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.4801261829653) internal successors, (7101), 1585 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7101 transitions. [2021-03-11 14:36:33,537 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7101 transitions. Word has length 28 [2021-03-11 14:36:33,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:33,537 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7101 transitions. [2021-03-11 14:36:33,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7101 transitions. [2021-03-11 14:36:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:33,540 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:33,540 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:33,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 14:36:33,540 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:33,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:33,541 INFO L82 PathProgramCache]: Analyzing trace with hash 953797556, now seen corresponding path program 22 times [2021-03-11 14:36:33,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:33,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995287070] [2021-03-11 14:36:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:33,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:33,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:33,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:33,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:33,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:33,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:33,577 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:33,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:33,589 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:33,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:33,606 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:33,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:33,627 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:33,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:33,654 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:33,687 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:33,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:33,731 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:33,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:33,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:33,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995287070] [2021-03-11 14:36:33,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:33,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:33,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069176801] [2021-03-11 14:36:33,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:33,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:33,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:33,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:33,772 INFO L87 Difference]: Start difference. First operand 1586 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:33,916 INFO L93 Difference]: Finished difference Result 3018 states and 11937 transitions. [2021-03-11 14:36:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:33,916 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:33,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:33,922 INFO L225 Difference]: With dead ends: 3018 [2021-03-11 14:36:33,922 INFO L226 Difference]: Without dead ends: 2994 [2021-03-11 14:36:33,923 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2021-03-11 14:36:33,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1580. [2021-03-11 14:36:33,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.486383787207093) internal successors, (7084), 1579 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7084 transitions. [2021-03-11 14:36:33,979 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7084 transitions. Word has length 28 [2021-03-11 14:36:33,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:33,979 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7084 transitions. [2021-03-11 14:36:33,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:33,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7084 transitions. [2021-03-11 14:36:33,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:33,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:33,981 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:33,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 14:36:33,981 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:33,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:33,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1820036016, now seen corresponding path program 23 times [2021-03-11 14:36:33,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:33,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662776548] [2021-03-11 14:36:33,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:34,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:34,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:34,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:34,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:34,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:34,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:34,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:34,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:34,028 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:34,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:34,045 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:34,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:34,066 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:34,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:34,093 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:36:34,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:36:34,129 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:34,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:34,170 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:34,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:34,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:34,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662776548] [2021-03-11 14:36:34,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:34,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:34,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674264026] [2021-03-11 14:36:34,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:34,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:34,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:34,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:34,203 INFO L87 Difference]: Start difference. First operand 1580 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:34,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:34,299 INFO L93 Difference]: Finished difference Result 3028 states and 11956 transitions. [2021-03-11 14:36:34,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:34,300 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:34,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:34,306 INFO L225 Difference]: With dead ends: 3028 [2021-03-11 14:36:34,306 INFO L226 Difference]: Without dead ends: 3008 [2021-03-11 14:36:34,306 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 210.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-03-11 14:36:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1590. [2021-03-11 14:36:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.468848332284455) internal successors, (7101), 1589 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7101 transitions. [2021-03-11 14:36:34,356 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7101 transitions. Word has length 28 [2021-03-11 14:36:34,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:34,356 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7101 transitions. [2021-03-11 14:36:34,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:34,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7101 transitions. [2021-03-11 14:36:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:34,358 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:34,358 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:34,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 14:36:34,358 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:34,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:34,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1730228782, now seen corresponding path program 24 times [2021-03-11 14:36:34,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:34,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82522016] [2021-03-11 14:36:34,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:34,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:34,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:34,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:34,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:34,381 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:34,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:34,389 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:34,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:34,400 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:34,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:34,415 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:34,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:34,437 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:34,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:34,467 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:36:34,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:36:34,501 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:34,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:34,543 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:34,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:34,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:34,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82522016] [2021-03-11 14:36:34,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:34,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:34,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139574857] [2021-03-11 14:36:34,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:34,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:34,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:34,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:34,582 INFO L87 Difference]: Start difference. First operand 1590 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:34,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:34,744 INFO L93 Difference]: Finished difference Result 3026 states and 11944 transitions. [2021-03-11 14:36:34,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:34,745 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:34,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:34,753 INFO L225 Difference]: With dead ends: 3026 [2021-03-11 14:36:34,753 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:36:34,754 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 250.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:36:34,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1565. [2021-03-11 14:36:34,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.507033248081841) internal successors, (7049), 1564 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7049 transitions. [2021-03-11 14:36:34,807 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7049 transitions. Word has length 28 [2021-03-11 14:36:34,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:34,807 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7049 transitions. [2021-03-11 14:36:34,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:34,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7049 transitions. [2021-03-11 14:36:34,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:34,809 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:34,809 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:34,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 14:36:34,810 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:34,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:34,810 INFO L82 PathProgramCache]: Analyzing trace with hash 582955646, now seen corresponding path program 25 times [2021-03-11 14:36:34,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:34,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571469894] [2021-03-11 14:36:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:34,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:34,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:34,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:34,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:34,834 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:34,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:34,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:34,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:34,852 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:34,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:34,867 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:34,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:34,885 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:34,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:34,923 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:34,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:34,955 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:34,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:34,996 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:34,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:35,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571469894] [2021-03-11 14:36:35,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:35,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:35,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851224722] [2021-03-11 14:36:35,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:35,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:35,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:35,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:35,029 INFO L87 Difference]: Start difference. First operand 1565 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:35,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:35,164 INFO L93 Difference]: Finished difference Result 2995 states and 11908 transitions. [2021-03-11 14:36:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:35,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:35,170 INFO L225 Difference]: With dead ends: 2995 [2021-03-11 14:36:35,170 INFO L226 Difference]: Without dead ends: 2980 [2021-03-11 14:36:35,170 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 232.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:35,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2021-03-11 14:36:35,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 1582. [2021-03-11 14:36:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.495888678051866) internal successors, (7108), 1581 states have internal predecessors, (7108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:35,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7108 transitions. [2021-03-11 14:36:35,218 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7108 transitions. Word has length 28 [2021-03-11 14:36:35,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:35,218 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7108 transitions. [2021-03-11 14:36:35,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:35,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7108 transitions. [2021-03-11 14:36:35,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:35,220 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:35,220 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:35,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 14:36:35,221 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:35,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:35,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1327658144, now seen corresponding path program 26 times [2021-03-11 14:36:35,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:35,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604645588] [2021-03-11 14:36:35,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:35,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:35,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:35,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:35,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:35,243 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:35,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:35,250 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:35,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:35,260 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:35,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:35,276 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:35,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:35,299 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:35,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:35,336 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:35,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:35,364 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:35,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:35,398 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:35,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:35,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604645588] [2021-03-11 14:36:35,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:35,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:35,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887887320] [2021-03-11 14:36:35,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:35,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:35,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:35,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:35,430 INFO L87 Difference]: Start difference. First operand 1582 states and 7108 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:35,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:35,598 INFO L93 Difference]: Finished difference Result 2996 states and 11905 transitions. [2021-03-11 14:36:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:35,598 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:35,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:35,606 INFO L225 Difference]: With dead ends: 2996 [2021-03-11 14:36:35,606 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:36:35,606 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 234.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:35,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:36:35,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1577. [2021-03-11 14:36:35,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.501269035532995) internal successors, (7094), 1576 states have internal predecessors, (7094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7094 transitions. [2021-03-11 14:36:35,671 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7094 transitions. Word has length 28 [2021-03-11 14:36:35,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:35,671 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7094 transitions. [2021-03-11 14:36:35,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:35,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7094 transitions. [2021-03-11 14:36:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:35,674 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:35,674 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:35,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 14:36:35,674 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:35,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:35,674 INFO L82 PathProgramCache]: Analyzing trace with hash -2101070692, now seen corresponding path program 27 times [2021-03-11 14:36:35,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:35,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614869397] [2021-03-11 14:36:35,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:35,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:35,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:35,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:35,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:35,713 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:35,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:35,721 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:35,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:35,732 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:35,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:35,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:35,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:35,769 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:35,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:35,811 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:35,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:35,862 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:35,903 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:35,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:35,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:35,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614869397] [2021-03-11 14:36:35,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:35,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:35,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779971972] [2021-03-11 14:36:35,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:35,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:35,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:35,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:35,944 INFO L87 Difference]: Start difference. First operand 1577 states and 7094 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:36,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:36,107 INFO L93 Difference]: Finished difference Result 3000 states and 11912 transitions. [2021-03-11 14:36:36,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:36,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:36,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:36,115 INFO L225 Difference]: With dead ends: 3000 [2021-03-11 14:36:36,115 INFO L226 Difference]: Without dead ends: 2985 [2021-03-11 14:36:36,116 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 283.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2021-03-11 14:36:36,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1583. [2021-03-11 14:36:36,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.491150442477876) internal successors, (7105), 1582 states have internal predecessors, (7105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7105 transitions. [2021-03-11 14:36:36,193 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7105 transitions. Word has length 28 [2021-03-11 14:36:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:36,193 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7105 transitions. [2021-03-11 14:36:36,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7105 transitions. [2021-03-11 14:36:36,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:36,196 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:36,196 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:36,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 14:36:36,197 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:36,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:36,197 INFO L82 PathProgramCache]: Analyzing trace with hash -611665696, now seen corresponding path program 28 times [2021-03-11 14:36:36,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:36,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936479425] [2021-03-11 14:36:36,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:36,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:36,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:36,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:36,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:36,259 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:36,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:36,267 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:36,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:36,279 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:36,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:36,296 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:36,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:36,318 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:36,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:36,370 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:36,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:36,433 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:36,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:36,479 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:36,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:36,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936479425] [2021-03-11 14:36:36,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:36,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:36,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282886159] [2021-03-11 14:36:36,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:36,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:36,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:36,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:36,521 INFO L87 Difference]: Start difference. First operand 1583 states and 7105 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:36,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:36,671 INFO L93 Difference]: Finished difference Result 3005 states and 11916 transitions. [2021-03-11 14:36:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:36,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:36,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:36,676 INFO L225 Difference]: With dead ends: 3005 [2021-03-11 14:36:36,677 INFO L226 Difference]: Without dead ends: 2979 [2021-03-11 14:36:36,677 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 278.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:36,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2021-03-11 14:36:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 1577. [2021-03-11 14:36:36,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.49746192893401) internal successors, (7088), 1576 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7088 transitions. [2021-03-11 14:36:36,729 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7088 transitions. Word has length 28 [2021-03-11 14:36:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:36,729 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7088 transitions. [2021-03-11 14:36:36,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7088 transitions. [2021-03-11 14:36:36,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:36,731 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:36,731 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:36,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 14:36:36,731 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:36,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:36,732 INFO L82 PathProgramCache]: Analyzing trace with hash 254572764, now seen corresponding path program 29 times [2021-03-11 14:36:36,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:36,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145447811] [2021-03-11 14:36:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:36,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:36,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:36,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:36,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:36,760 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:36,767 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:36,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:36,779 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:36,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:36,795 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:36,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:36,816 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:36,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:36,859 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:36,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:36,921 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:36,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:36,969 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:36,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:37,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145447811] [2021-03-11 14:36:37,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:37,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:37,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524270713] [2021-03-11 14:36:37,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:37,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:37,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:37,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:37,010 INFO L87 Difference]: Start difference. First operand 1577 states and 7088 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:37,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:37,181 INFO L93 Difference]: Finished difference Result 3003 states and 11913 transitions. [2021-03-11 14:36:37,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:37,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:37,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:37,189 INFO L225 Difference]: With dead ends: 3003 [2021-03-11 14:36:37,189 INFO L226 Difference]: Without dead ends: 2987 [2021-03-11 14:36:37,190 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 300.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:37,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2021-03-11 14:36:37,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1584. [2021-03-11 14:36:37,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.485786481364498) internal successors, (7101), 1583 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7101 transitions. [2021-03-11 14:36:37,267 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7101 transitions. Word has length 28 [2021-03-11 14:36:37,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:37,267 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7101 transitions. [2021-03-11 14:36:37,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7101 transitions. [2021-03-11 14:36:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:37,270 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:37,271 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:37,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 14:36:37,271 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:37,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:37,271 INFO L82 PathProgramCache]: Analyzing trace with hash 999275262, now seen corresponding path program 30 times [2021-03-11 14:36:37,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:37,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922094746] [2021-03-11 14:36:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:37,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:37,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:37,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:37,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:37,295 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:37,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:37,303 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:37,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:37,316 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:37,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:37,333 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:37,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:37,356 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:37,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:37,406 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:37,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:37,463 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:37,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:37,500 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:37,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:37,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922094746] [2021-03-11 14:36:37,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:37,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:37,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037400076] [2021-03-11 14:36:37,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:37,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:37,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:37,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:37,533 INFO L87 Difference]: Start difference. First operand 1584 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:37,660 INFO L93 Difference]: Finished difference Result 3007 states and 11914 transitions. [2021-03-11 14:36:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:37,660 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:37,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:37,666 INFO L225 Difference]: With dead ends: 3007 [2021-03-11 14:36:37,666 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:36:37,666 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:36:37,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1571. [2021-03-11 14:36:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.503821656050955) internal successors, (7071), 1570 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:37,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7071 transitions. [2021-03-11 14:36:37,717 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7071 transitions. Word has length 28 [2021-03-11 14:36:37,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:37,718 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7071 transitions. [2021-03-11 14:36:37,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7071 transitions. [2021-03-11 14:36:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:37,719 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:37,720 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:37,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 14:36:37,720 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:37,720 INFO L82 PathProgramCache]: Analyzing trace with hash -242257480, now seen corresponding path program 31 times [2021-03-11 14:36:37,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:37,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707880532] [2021-03-11 14:36:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:37,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:37,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:37,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:37,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:37,744 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:37,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:37,752 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:37,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:37,764 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:37,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:37,781 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:37,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:37,804 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:37,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:37,833 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:37,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:37,863 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:37,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:37,913 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:37,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:37,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707880532] [2021-03-11 14:36:37,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:37,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:37,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712375654] [2021-03-11 14:36:37,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:37,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:37,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:37,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:37,950 INFO L87 Difference]: Start difference. First operand 1571 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:38,079 INFO L93 Difference]: Finished difference Result 2989 states and 11890 transitions. [2021-03-11 14:36:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:38,080 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:38,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:38,085 INFO L225 Difference]: With dead ends: 2989 [2021-03-11 14:36:38,085 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:36:38,086 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 232.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:38,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:36:38,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1581. [2021-03-11 14:36:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.493037974683545) internal successors, (7099), 1580 states have internal predecessors, (7099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7099 transitions. [2021-03-11 14:36:38,140 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7099 transitions. Word has length 28 [2021-03-11 14:36:38,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:38,140 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7099 transitions. [2021-03-11 14:36:38,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7099 transitions. [2021-03-11 14:36:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:38,143 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:38,143 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:38,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 14:36:38,144 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:38,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:38,144 INFO L82 PathProgramCache]: Analyzing trace with hash 502445018, now seen corresponding path program 32 times [2021-03-11 14:36:38,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:38,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603091210] [2021-03-11 14:36:38,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:38,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:38,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:38,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:38,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:38,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:38,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:38,177 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:38,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:38,188 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:38,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:38,204 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:38,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:38,229 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:38,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:38,261 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:38,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:38,297 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:38,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:38,333 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:38,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:38,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603091210] [2021-03-11 14:36:38,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:38,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:38,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040977556] [2021-03-11 14:36:38,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:38,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:38,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:38,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:38,366 INFO L87 Difference]: Start difference. First operand 1581 states and 7099 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:38,509 INFO L93 Difference]: Finished difference Result 2990 states and 11887 transitions. [2021-03-11 14:36:38,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:38,510 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:38,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:38,515 INFO L225 Difference]: With dead ends: 2990 [2021-03-11 14:36:38,515 INFO L226 Difference]: Without dead ends: 2969 [2021-03-11 14:36:38,516 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:38,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-03-11 14:36:38,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1576. [2021-03-11 14:36:38,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.498412698412698) internal successors, (7085), 1575 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7085 transitions. [2021-03-11 14:36:38,578 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7085 transitions. Word has length 28 [2021-03-11 14:36:38,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:38,578 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7085 transitions. [2021-03-11 14:36:38,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7085 transitions. [2021-03-11 14:36:38,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:38,581 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:38,581 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:38,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 14:36:38,581 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:38,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1850572662, now seen corresponding path program 33 times [2021-03-11 14:36:38,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:38,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777446244] [2021-03-11 14:36:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:38,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:38,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:38,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:38,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:38,605 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:38,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:38,613 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:38,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:38,625 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:38,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:38,641 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:38,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:38,661 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:38,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:38,685 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:38,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:38,720 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:38,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:38,757 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:38,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:38,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777446244] [2021-03-11 14:36:38,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:38,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:38,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824776734] [2021-03-11 14:36:38,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:38,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:38,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:38,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:38,790 INFO L87 Difference]: Start difference. First operand 1576 states and 7085 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:38,926 INFO L93 Difference]: Finished difference Result 2990 states and 11887 transitions. [2021-03-11 14:36:38,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:38,934 INFO L225 Difference]: With dead ends: 2990 [2021-03-11 14:36:38,934 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:36:38,934 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 224.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:38,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:36:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1581. [2021-03-11 14:36:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.489873417721519) internal successors, (7094), 1580 states have internal predecessors, (7094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7094 transitions. [2021-03-11 14:36:38,986 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7094 transitions. Word has length 28 [2021-03-11 14:36:38,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:38,986 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7094 transitions. [2021-03-11 14:36:38,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:38,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7094 transitions. [2021-03-11 14:36:38,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:38,988 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:38,988 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:38,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 14:36:38,988 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:38,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:38,988 INFO L82 PathProgramCache]: Analyzing trace with hash -187919974, now seen corresponding path program 34 times [2021-03-11 14:36:38,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:38,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147169091] [2021-03-11 14:36:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:39,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:39,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:39,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:39,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:39,013 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:39,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:39,021 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:39,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:39,034 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:39,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:39,050 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:39,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:39,072 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:39,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:39,097 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:39,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:39,136 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:39,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:39,171 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:39,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:39,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:39,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147169091] [2021-03-11 14:36:39,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:39,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:39,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562054651] [2021-03-11 14:36:39,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:39,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:39,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:39,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:39,204 INFO L87 Difference]: Start difference. First operand 1581 states and 7094 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:39,331 INFO L93 Difference]: Finished difference Result 2992 states and 11886 transitions. [2021-03-11 14:36:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:39,332 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:39,337 INFO L225 Difference]: With dead ends: 2992 [2021-03-11 14:36:39,337 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:36:39,338 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 233.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:39,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:36:39,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1576. [2021-03-11 14:36:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.495238095238095) internal successors, (7080), 1575 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7080 transitions. [2021-03-11 14:36:39,390 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7080 transitions. Word has length 28 [2021-03-11 14:36:39,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:39,390 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7080 transitions. [2021-03-11 14:36:39,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7080 transitions. [2021-03-11 14:36:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:39,393 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:39,393 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:39,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 14:36:39,393 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:39,393 INFO L82 PathProgramCache]: Analyzing trace with hash 505070794, now seen corresponding path program 35 times [2021-03-11 14:36:39,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:39,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270248906] [2021-03-11 14:36:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:39,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:39,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:39,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:39,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:39,418 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:39,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:39,426 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:39,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:39,437 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:39,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:39,454 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:39,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:39,474 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:39,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:39,497 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:39,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:39,527 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:39,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:39,561 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:39,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:39,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270248906] [2021-03-11 14:36:39,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:39,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:39,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21203643] [2021-03-11 14:36:39,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:39,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:39,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:39,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:39,594 INFO L87 Difference]: Start difference. First operand 1576 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:39,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:39,733 INFO L93 Difference]: Finished difference Result 2993 states and 11889 transitions. [2021-03-11 14:36:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:39,733 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:39,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:39,738 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:36:39,738 INFO L226 Difference]: Without dead ends: 2977 [2021-03-11 14:36:39,739 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 217.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-03-11 14:36:39,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 1582. [2021-03-11 14:36:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.485135989879823) internal successors, (7091), 1581 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7091 transitions. [2021-03-11 14:36:39,791 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7091 transitions. Word has length 28 [2021-03-11 14:36:39,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:39,791 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7091 transitions. [2021-03-11 14:36:39,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7091 transitions. [2021-03-11 14:36:39,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:39,794 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:39,794 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:39,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 14:36:39,794 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:39,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:39,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1423020984, now seen corresponding path program 36 times [2021-03-11 14:36:39,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:39,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377212489] [2021-03-11 14:36:39,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:39,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:39,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:39,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:39,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:39,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:39,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:39,826 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:39,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:39,838 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:39,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:39,855 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:39,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:39,876 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:39,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:39,905 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:39,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:39,944 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:39,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:39,993 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:39,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:40,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377212489] [2021-03-11 14:36:40,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:40,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:40,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673944499] [2021-03-11 14:36:40,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:40,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:40,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:40,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:40,039 INFO L87 Difference]: Start difference. First operand 1582 states and 7091 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:40,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:40,227 INFO L93 Difference]: Finished difference Result 2994 states and 11885 transitions. [2021-03-11 14:36:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:40,227 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:40,233 INFO L225 Difference]: With dead ends: 2994 [2021-03-11 14:36:40,233 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:36:40,233 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 259.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:36:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1571. [2021-03-11 14:36:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.500636942675159) internal successors, (7066), 1570 states have internal predecessors, (7066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:40,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7066 transitions. [2021-03-11 14:36:40,285 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7066 transitions. Word has length 28 [2021-03-11 14:36:40,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:40,285 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7066 transitions. [2021-03-11 14:36:40,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:40,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7066 transitions. [2021-03-11 14:36:40,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:40,287 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:40,287 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:40,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 14:36:40,287 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:40,287 INFO L82 PathProgramCache]: Analyzing trace with hash -231754376, now seen corresponding path program 37 times [2021-03-11 14:36:40,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:40,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030591670] [2021-03-11 14:36:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:40,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:40,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:40,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:40,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:40,313 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:40,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:40,321 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:40,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:40,333 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:40,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:40,350 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:40,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:40,371 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:40,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:40,397 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:40,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:40,441 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:40,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:40,476 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:40,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:40,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030591670] [2021-03-11 14:36:40,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:40,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:40,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257844242] [2021-03-11 14:36:40,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:40,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:40,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:40,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:40,508 INFO L87 Difference]: Start difference. First operand 1571 states and 7066 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:40,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:40,656 INFO L93 Difference]: Finished difference Result 3002 states and 11911 transitions. [2021-03-11 14:36:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:40,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:40,661 INFO L225 Difference]: With dead ends: 3002 [2021-03-11 14:36:40,661 INFO L226 Difference]: Without dead ends: 2987 [2021-03-11 14:36:40,662 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2021-03-11 14:36:40,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1583. [2021-03-11 14:36:40,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.487357774968395) internal successors, (7099), 1582 states have internal predecessors, (7099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7099 transitions. [2021-03-11 14:36:40,714 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7099 transitions. Word has length 28 [2021-03-11 14:36:40,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:40,714 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7099 transitions. [2021-03-11 14:36:40,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:40,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7099 transitions. [2021-03-11 14:36:40,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:40,716 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:40,716 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:40,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 14:36:40,716 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:40,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1257650620, now seen corresponding path program 38 times [2021-03-11 14:36:40,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:40,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895289430] [2021-03-11 14:36:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:40,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:40,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:40,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:40,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:40,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:40,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:40,745 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:40,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:40,756 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:40,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:40,777 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:40,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:40,795 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:40,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:40,818 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:40,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:40,870 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:40,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:40,905 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:40,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:40,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895289430] [2021-03-11 14:36:40,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:40,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:40,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337808148] [2021-03-11 14:36:40,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:40,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:40,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:40,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:40,938 INFO L87 Difference]: Start difference. First operand 1583 states and 7099 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:41,055 INFO L93 Difference]: Finished difference Result 3007 states and 11915 transitions. [2021-03-11 14:36:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:41,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:41,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:41,061 INFO L225 Difference]: With dead ends: 3007 [2021-03-11 14:36:41,061 INFO L226 Difference]: Without dead ends: 2981 [2021-03-11 14:36:41,061 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-03-11 14:36:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1577. [2021-03-11 14:36:41,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.493654822335025) internal successors, (7082), 1576 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7082 transitions. [2021-03-11 14:36:41,115 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7082 transitions. Word has length 28 [2021-03-11 14:36:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:41,115 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7082 transitions. [2021-03-11 14:36:41,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7082 transitions. [2021-03-11 14:36:41,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:41,117 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:41,117 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:41,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-11 14:36:41,117 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:41,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:41,117 INFO L82 PathProgramCache]: Analyzing trace with hash 843956780, now seen corresponding path program 39 times [2021-03-11 14:36:41,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:41,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406728503] [2021-03-11 14:36:41,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:41,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:41,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:41,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:41,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:41,140 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:41,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:41,148 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:41,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:41,161 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:41,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:41,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:41,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:41,199 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:41,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:41,229 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:41,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:41,267 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:41,315 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:41,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:41,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406728503] [2021-03-11 14:36:41,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:41,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:41,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377262715] [2021-03-11 14:36:41,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:41,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:41,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:41,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:41,351 INFO L87 Difference]: Start difference. First operand 1577 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:41,480 INFO L93 Difference]: Finished difference Result 2998 states and 11898 transitions. [2021-03-11 14:36:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:41,480 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:41,486 INFO L225 Difference]: With dead ends: 2998 [2021-03-11 14:36:41,486 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:36:41,486 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 250.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:36:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1582. [2021-03-11 14:36:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.485135989879823) internal successors, (7091), 1581 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7091 transitions. [2021-03-11 14:36:41,539 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7091 transitions. Word has length 28 [2021-03-11 14:36:41,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:41,539 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7091 transitions. [2021-03-11 14:36:41,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7091 transitions. [2021-03-11 14:36:41,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:41,541 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:41,541 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:41,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-11 14:36:41,541 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:41,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:41,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1788357828, now seen corresponding path program 40 times [2021-03-11 14:36:41,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:41,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327137268] [2021-03-11 14:36:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:41,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:41,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:41,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:41,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:41,563 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:41,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:41,571 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:41,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:41,584 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:41,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:41,603 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:41,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:41,623 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:41,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:41,646 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:41,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:41,674 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:41,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:41,708 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:41,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327137268] [2021-03-11 14:36:41,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:41,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:41,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694650774] [2021-03-11 14:36:41,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:41,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:41,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:41,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:41,741 INFO L87 Difference]: Start difference. First operand 1582 states and 7091 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:41,872 INFO L93 Difference]: Finished difference Result 3000 states and 11897 transitions. [2021-03-11 14:36:41,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:41,873 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:41,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:41,878 INFO L225 Difference]: With dead ends: 3000 [2021-03-11 14:36:41,878 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:36:41,879 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:41,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:36:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1577. [2021-03-11 14:36:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.490482233502538) internal successors, (7077), 1576 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7077 transitions. [2021-03-11 14:36:41,931 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7077 transitions. Word has length 28 [2021-03-11 14:36:41,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:41,931 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7077 transitions. [2021-03-11 14:36:41,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7077 transitions. [2021-03-11 14:36:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:41,933 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:41,933 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:41,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-11 14:36:41,933 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:41,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1260276396, now seen corresponding path program 41 times [2021-03-11 14:36:41,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:41,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074168989] [2021-03-11 14:36:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:41,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:41,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:41,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:41,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:41,956 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:41,964 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:41,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:41,976 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:41,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:41,993 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:41,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:42,014 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:42,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:42,042 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:42,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:42,071 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:42,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:42,120 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:42,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:42,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074168989] [2021-03-11 14:36:42,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:42,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:42,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377551807] [2021-03-11 14:36:42,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:42,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:42,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:42,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:42,155 INFO L87 Difference]: Start difference. First operand 1577 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:42,318 INFO L93 Difference]: Finished difference Result 3011 states and 11919 transitions. [2021-03-11 14:36:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:42,318 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:42,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:42,323 INFO L225 Difference]: With dead ends: 3011 [2021-03-11 14:36:42,323 INFO L226 Difference]: Without dead ends: 2991 [2021-03-11 14:36:42,324 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 222.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-03-11 14:36:42,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1585. [2021-03-11 14:36:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.476641414141414) internal successors, (7091), 1584 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7091 transitions. [2021-03-11 14:36:42,370 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7091 transitions. Word has length 28 [2021-03-11 14:36:42,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:42,370 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7091 transitions. [2021-03-11 14:36:42,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7091 transitions. [2021-03-11 14:36:42,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:42,373 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:42,373 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:42,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-11 14:36:42,373 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1433524088, now seen corresponding path program 42 times [2021-03-11 14:36:42,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:42,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416997896] [2021-03-11 14:36:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:42,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:42,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:42,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:42,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:42,395 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:42,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:42,402 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:42,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:42,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:42,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:42,427 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:42,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:42,449 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:42,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:42,476 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:42,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:42,509 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:42,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:42,540 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:42,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:42,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416997896] [2021-03-11 14:36:42,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:42,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:42,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913107281] [2021-03-11 14:36:42,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:42,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:42,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:42,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:42,572 INFO L87 Difference]: Start difference. First operand 1585 states and 7091 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:42,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:42,726 INFO L93 Difference]: Finished difference Result 3008 states and 11906 transitions. [2021-03-11 14:36:42,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:42,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:42,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:42,732 INFO L225 Difference]: With dead ends: 3008 [2021-03-11 14:36:42,732 INFO L226 Difference]: Without dead ends: 2977 [2021-03-11 14:36:42,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 214.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:42,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-03-11 14:36:42,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 1571. [2021-03-11 14:36:42,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.496815286624204) internal successors, (7060), 1570 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:42,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7060 transitions. [2021-03-11 14:36:42,780 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7060 transitions. Word has length 28 [2021-03-11 14:36:42,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:42,780 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7060 transitions. [2021-03-11 14:36:42,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:42,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7060 transitions. [2021-03-11 14:36:42,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:42,782 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:42,782 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:42,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-11 14:36:42,782 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:42,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:42,782 INFO L82 PathProgramCache]: Analyzing trace with hash 523451226, now seen corresponding path program 43 times [2021-03-11 14:36:42,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:42,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521849598] [2021-03-11 14:36:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:42,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:42,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:42,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:42,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:42,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:42,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:42,810 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:42,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:42,820 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:42,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:42,835 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:42,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:42,860 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:42,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:42,888 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:42,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:42,941 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:42,980 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:42,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:43,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521849598] [2021-03-11 14:36:43,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:43,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:43,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612079345] [2021-03-11 14:36:43,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:43,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:43,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:43,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:43,016 INFO L87 Difference]: Start difference. First operand 1571 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:43,205 INFO L93 Difference]: Finished difference Result 3009 states and 11924 transitions. [2021-03-11 14:36:43,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:43,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:43,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:43,212 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:36:43,212 INFO L226 Difference]: Without dead ends: 2993 [2021-03-11 14:36:43,213 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-03-11 14:36:43,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 1585. [2021-03-11 14:36:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.48169191919192) internal successors, (7099), 1584 states have internal predecessors, (7099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7099 transitions. [2021-03-11 14:36:43,280 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7099 transitions. Word has length 28 [2021-03-11 14:36:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:43,281 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7099 transitions. [2021-03-11 14:36:43,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7099 transitions. [2021-03-11 14:36:43,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:43,284 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:43,284 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:43,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-11 14:36:43,284 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:43,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:43,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1268153724, now seen corresponding path program 44 times [2021-03-11 14:36:43,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:43,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156654680] [2021-03-11 14:36:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:43,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:43,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:43,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:43,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:43,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:43,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:43,313 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:43,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:43,325 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:43,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:43,342 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:43,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:43,365 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:43,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:43,393 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:43,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:43,447 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:43,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:43,493 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:43,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:43,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156654680] [2021-03-11 14:36:43,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:43,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:43,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109365071] [2021-03-11 14:36:43,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:43,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:43,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:43,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:43,529 INFO L87 Difference]: Start difference. First operand 1585 states and 7099 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:43,671 INFO L93 Difference]: Finished difference Result 3013 states and 11925 transitions. [2021-03-11 14:36:43,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:43,672 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:43,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:43,677 INFO L225 Difference]: With dead ends: 3013 [2021-03-11 14:36:43,677 INFO L226 Difference]: Without dead ends: 2986 [2021-03-11 14:36:43,677 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2021-03-11 14:36:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1578. [2021-03-11 14:36:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.488902980342423) internal successors, (7079), 1577 states have internal predecessors, (7079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7079 transitions. [2021-03-11 14:36:43,724 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7079 transitions. Word has length 28 [2021-03-11 14:36:43,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:43,724 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7079 transitions. [2021-03-11 14:36:43,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:43,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7079 transitions. [2021-03-11 14:36:43,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:43,726 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:43,726 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:43,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-11 14:36:43,726 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:43,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:43,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1599162382, now seen corresponding path program 45 times [2021-03-11 14:36:43,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:43,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300887762] [2021-03-11 14:36:43,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:43,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:43,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:43,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:43,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:43,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:43,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:43,753 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:43,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:43,764 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:43,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:43,779 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:43,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:43,800 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:43,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:43,822 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:43,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:43,847 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:43,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:43,888 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:43,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:43,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300887762] [2021-03-11 14:36:43,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:43,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:43,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366252418] [2021-03-11 14:36:43,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:43,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:43,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:43,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:43,918 INFO L87 Difference]: Start difference. First operand 1578 states and 7079 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:44,039 INFO L93 Difference]: Finished difference Result 3005 states and 11910 transitions. [2021-03-11 14:36:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:44,039 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:44,045 INFO L225 Difference]: With dead ends: 3005 [2021-03-11 14:36:44,045 INFO L226 Difference]: Without dead ends: 2989 [2021-03-11 14:36:44,045 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 201.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-03-11 14:36:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1584. [2021-03-11 14:36:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.478837650031585) internal successors, (7090), 1583 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7090 transitions. [2021-03-11 14:36:44,091 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7090 transitions. Word has length 28 [2021-03-11 14:36:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:44,091 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7090 transitions. [2021-03-11 14:36:44,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7090 transitions. [2021-03-11 14:36:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:44,093 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:44,093 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:44,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-11 14:36:44,093 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:44,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1777854724, now seen corresponding path program 46 times [2021-03-11 14:36:44,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:44,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911283477] [2021-03-11 14:36:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:44,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:44,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:44,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:44,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:44,114 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:44,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:44,120 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:44,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:44,131 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:44,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:44,144 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:44,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:44,163 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:44,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:44,184 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:44,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:44,209 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:44,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:44,253 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:44,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:44,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:44,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911283477] [2021-03-11 14:36:44,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:44,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:44,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365303542] [2021-03-11 14:36:44,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:44,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:44,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:44,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:44,283 INFO L87 Difference]: Start difference. First operand 1584 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:44,392 INFO L93 Difference]: Finished difference Result 3006 states and 11906 transitions. [2021-03-11 14:36:44,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:44,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:44,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:44,398 INFO L225 Difference]: With dead ends: 3006 [2021-03-11 14:36:44,398 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:36:44,398 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 198.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:36:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1578. [2021-03-11 14:36:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.485098287888396) internal successors, (7073), 1577 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7073 transitions. [2021-03-11 14:36:44,444 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7073 transitions. Word has length 28 [2021-03-11 14:36:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:44,444 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7073 transitions. [2021-03-11 14:36:44,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7073 transitions. [2021-03-11 14:36:44,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:44,447 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:44,447 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:44,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-11 14:36:44,447 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:44,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:44,447 INFO L82 PathProgramCache]: Analyzing trace with hash -340161458, now seen corresponding path program 47 times [2021-03-11 14:36:44,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:44,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461585251] [2021-03-11 14:36:44,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:44,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:44,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:44,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:44,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:44,471 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:44,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:44,478 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:44,489 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:44,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:44,503 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:44,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:44,526 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:44,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:44,554 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:44,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:44,591 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:44,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:44,632 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:44,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:44,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461585251] [2021-03-11 14:36:44,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:44,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:44,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673347062] [2021-03-11 14:36:44,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:44,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:44,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:44,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:44,671 INFO L87 Difference]: Start difference. First operand 1578 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:44,780 INFO L93 Difference]: Finished difference Result 3015 states and 11923 transitions. [2021-03-11 14:36:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:44,787 INFO L225 Difference]: With dead ends: 3015 [2021-03-11 14:36:44,787 INFO L226 Difference]: Without dead ends: 2995 [2021-03-11 14:36:44,788 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 221.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2021-03-11 14:36:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1586. [2021-03-11 14:36:44,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.471293375394322) internal successors, (7087), 1585 states have internal predecessors, (7087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7087 transitions. [2021-03-11 14:36:44,842 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7087 transitions. Word has length 28 [2021-03-11 14:36:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:44,842 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7087 transitions. [2021-03-11 14:36:44,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7087 transitions. [2021-03-11 14:36:44,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:44,845 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:44,845 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:44,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-11 14:36:44,845 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:44,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:44,845 INFO L82 PathProgramCache]: Analyzing trace with hash -166913766, now seen corresponding path program 48 times [2021-03-11 14:36:44,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:44,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209008824] [2021-03-11 14:36:44,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:44,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:44,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:44,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:44,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:44,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:44,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:44,873 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:44,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:44,884 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:44,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:44,901 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:44,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:44,925 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:44,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:44,950 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:44,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:44,976 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:44,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:45,007 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:45,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:45,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:45,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209008824] [2021-03-11 14:36:45,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:45,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:45,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204329791] [2021-03-11 14:36:45,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:45,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:45,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:45,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:45,039 INFO L87 Difference]: Start difference. First operand 1586 states and 7087 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:45,157 INFO L93 Difference]: Finished difference Result 3012 states and 11910 transitions. [2021-03-11 14:36:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:45,157 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:45,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:45,162 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:36:45,163 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:36:45,163 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:36:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1565. [2021-03-11 14:36:45,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.503196930946292) internal successors, (7043), 1564 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7043 transitions. [2021-03-11 14:36:45,209 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7043 transitions. Word has length 28 [2021-03-11 14:36:45,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:45,210 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7043 transitions. [2021-03-11 14:36:45,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:45,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7043 transitions. [2021-03-11 14:36:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:45,212 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:45,212 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:45,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-11 14:36:45,212 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:45,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:45,212 INFO L82 PathProgramCache]: Analyzing trace with hash 15547412, now seen corresponding path program 49 times [2021-03-11 14:36:45,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:45,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639902996] [2021-03-11 14:36:45,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:45,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:45,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:45,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:45,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:45,232 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:45,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:45,239 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:45,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:45,249 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:45,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:45,265 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:45,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:45,289 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:45,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:45,317 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:45,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:45,350 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:45,388 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:45,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639902996] [2021-03-11 14:36:45,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:45,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:45,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970280811] [2021-03-11 14:36:45,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:45,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:45,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:45,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:45,426 INFO L87 Difference]: Start difference. First operand 1565 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:45,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:45,586 INFO L93 Difference]: Finished difference Result 2981 states and 11870 transitions. [2021-03-11 14:36:45,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:45,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:45,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:45,594 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:36:45,594 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:36:45,594 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:36:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1580. [2021-03-11 14:36:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.493350221659278) internal successors, (7095), 1579 states have internal predecessors, (7095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7095 transitions. [2021-03-11 14:36:45,664 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7095 transitions. Word has length 28 [2021-03-11 14:36:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:45,664 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7095 transitions. [2021-03-11 14:36:45,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7095 transitions. [2021-03-11 14:36:45,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:45,667 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:45,667 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:45,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-11 14:36:45,667 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:45,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:45,668 INFO L82 PathProgramCache]: Analyzing trace with hash 760249910, now seen corresponding path program 50 times [2021-03-11 14:36:45,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:45,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018578935] [2021-03-11 14:36:45,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:45,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:45,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:45,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:45,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:45,687 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:45,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:45,694 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:45,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:45,706 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:45,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:45,723 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:45,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:45,746 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:45,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:45,774 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:45,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:45,807 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:45,848 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:45,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:45,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018578935] [2021-03-11 14:36:45,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:45,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:45,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393191978] [2021-03-11 14:36:45,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:45,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:45,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:45,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:45,886 INFO L87 Difference]: Start difference. First operand 1580 states and 7095 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:45,998 INFO L93 Difference]: Finished difference Result 2982 states and 11867 transitions. [2021-03-11 14:36:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:45,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:45,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:46,004 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:36:46,004 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:36:46,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:46,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:36:46,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1575. [2021-03-11 14:36:46,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.498729351969504) internal successors, (7081), 1574 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7081 transitions. [2021-03-11 14:36:46,053 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7081 transitions. Word has length 28 [2021-03-11 14:36:46,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:46,053 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7081 transitions. [2021-03-11 14:36:46,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7081 transitions. [2021-03-11 14:36:46,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:46,055 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:46,055 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:46,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-11 14:36:46,055 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:46,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:46,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1057537968, now seen corresponding path program 51 times [2021-03-11 14:36:46,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:46,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358369241] [2021-03-11 14:36:46,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:46,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:46,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:46,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:46,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:46,073 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:46,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:46,080 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:46,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:46,091 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:46,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:46,106 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:46,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:46,123 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:46,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:46,143 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:46,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:46,187 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:46,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:46,219 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:46,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:46,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358369241] [2021-03-11 14:36:46,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:46,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:46,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208559241] [2021-03-11 14:36:46,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:46,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:46,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:46,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:46,249 INFO L87 Difference]: Start difference. First operand 1575 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:46,359 INFO L93 Difference]: Finished difference Result 2983 states and 11869 transitions. [2021-03-11 14:36:46,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:46,359 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:46,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:46,364 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:36:46,364 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:36:46,365 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 216.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:36:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1580. [2021-03-11 14:36:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.490183660544648) internal successors, (7090), 1579 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7090 transitions. [2021-03-11 14:36:46,413 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7090 transitions. Word has length 28 [2021-03-11 14:36:46,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:46,413 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7090 transitions. [2021-03-11 14:36:46,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7090 transitions. [2021-03-11 14:36:46,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:46,416 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:46,416 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:46,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-11 14:36:46,416 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:46,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:46,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1176569526, now seen corresponding path program 52 times [2021-03-11 14:36:46,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:46,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439992226] [2021-03-11 14:36:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:46,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:46,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:46,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:46,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:46,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:46,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:46,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:46,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:46,454 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:46,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:46,469 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:46,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:46,491 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:46,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:46,519 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:46,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:46,575 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:46,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:46,616 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:46,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:46,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439992226] [2021-03-11 14:36:46,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:46,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:46,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690955700] [2021-03-11 14:36:46,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:46,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:46,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:46,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:46,655 INFO L87 Difference]: Start difference. First operand 1580 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:46,809 INFO L93 Difference]: Finished difference Result 2986 states and 11870 transitions. [2021-03-11 14:36:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:46,809 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:46,817 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:36:46,817 INFO L226 Difference]: Without dead ends: 2963 [2021-03-11 14:36:46,817 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 273.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2021-03-11 14:36:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1575. [2021-03-11 14:36:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.495552731893266) internal successors, (7076), 1574 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7076 transitions. [2021-03-11 14:36:46,885 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7076 transitions. Word has length 28 [2021-03-11 14:36:46,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:46,885 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7076 transitions. [2021-03-11 14:36:46,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:46,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7076 transitions. [2021-03-11 14:36:46,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:46,888 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:46,889 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:46,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-11 14:36:46,889 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1298105488, now seen corresponding path program 53 times [2021-03-11 14:36:46,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:46,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756569491] [2021-03-11 14:36:46,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:46,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:46,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:46,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:46,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:46,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:46,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:46,917 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:46,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:46,928 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:46,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:46,946 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:46,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:46,970 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:46,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:46,998 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:46,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:47,028 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:47,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:47,060 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:47,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:47,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756569491] [2021-03-11 14:36:47,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:47,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:47,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002956176] [2021-03-11 14:36:47,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:47,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:47,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:47,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:47,090 INFO L87 Difference]: Start difference. First operand 1575 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:47,198 INFO L93 Difference]: Finished difference Result 2986 states and 11871 transitions. [2021-03-11 14:36:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:47,198 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:47,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:47,203 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:36:47,203 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:36:47,203 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:47,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:36:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1581. [2021-03-11 14:36:47,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.485443037974684) internal successors, (7087), 1580 states have internal predecessors, (7087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7087 transitions. [2021-03-11 14:36:47,250 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7087 transitions. Word has length 28 [2021-03-11 14:36:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:47,251 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7087 transitions. [2021-03-11 14:36:47,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7087 transitions. [2021-03-11 14:36:47,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:47,253 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:47,253 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:47,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-11 14:36:47,253 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:47,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:47,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1507456812, now seen corresponding path program 54 times [2021-03-11 14:36:47,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:47,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570680509] [2021-03-11 14:36:47,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:47,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:47,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:47,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:47,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:47,273 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:47,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:47,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:47,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:47,289 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:47,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:47,302 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:47,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:47,318 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:47,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:47,338 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:47,364 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:47,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:47,402 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:47,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:47,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570680509] [2021-03-11 14:36:47,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:47,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:47,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410518459] [2021-03-11 14:36:47,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:47,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:47,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:47,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:47,432 INFO L87 Difference]: Start difference. First operand 1581 states and 7087 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:47,545 INFO L93 Difference]: Finished difference Result 2988 states and 11869 transitions. [2021-03-11 14:36:47,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:47,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:47,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:47,551 INFO L225 Difference]: With dead ends: 2988 [2021-03-11 14:36:47,552 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:36:47,552 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 203.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:47,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:36:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1570. [2021-03-11 14:36:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.500956022944551) internal successors, (7062), 1569 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7062 transitions. [2021-03-11 14:36:47,602 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7062 transitions. Word has length 28 [2021-03-11 14:36:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:47,603 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7062 transitions. [2021-03-11 14:36:47,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7062 transitions. [2021-03-11 14:36:47,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:47,605 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:47,605 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:47,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-11 14:36:47,605 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:47,605 INFO L82 PathProgramCache]: Analyzing trace with hash 603292734, now seen corresponding path program 55 times [2021-03-11 14:36:47,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:47,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739749388] [2021-03-11 14:36:47,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:47,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:47,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:47,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:47,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:47,625 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:47,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:47,632 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:47,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:47,643 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:47,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:47,658 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:47,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:47,681 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:47,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:47,710 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:47,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:47,743 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:47,784 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:47,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739749388] [2021-03-11 14:36:47,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:47,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:47,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506881076] [2021-03-11 14:36:47,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:47,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:47,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:47,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:47,816 INFO L87 Difference]: Start difference. First operand 1570 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:47,923 INFO L93 Difference]: Finished difference Result 2980 states and 11863 transitions. [2021-03-11 14:36:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:47,924 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:47,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:47,929 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:36:47,929 INFO L226 Difference]: Without dead ends: 2965 [2021-03-11 14:36:47,929 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 228.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:47,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2021-03-11 14:36:47,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1580. [2021-03-11 14:36:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.490183660544648) internal successors, (7090), 1579 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7090 transitions. [2021-03-11 14:36:47,975 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7090 transitions. Word has length 28 [2021-03-11 14:36:47,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:47,975 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7090 transitions. [2021-03-11 14:36:47,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:47,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7090 transitions. [2021-03-11 14:36:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:47,977 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:47,977 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:47,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-11 14:36:47,978 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:47,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:47,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1347995232, now seen corresponding path program 56 times [2021-03-11 14:36:47,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:47,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665149154] [2021-03-11 14:36:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:47,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:47,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:47,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:47,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:47,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:48,005 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:48,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:48,016 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:48,031 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:48,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:48,049 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:48,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:48,070 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:48,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:48,096 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:48,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:48,134 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:48,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:48,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:48,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665149154] [2021-03-11 14:36:48,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:48,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:48,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537817322] [2021-03-11 14:36:48,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:48,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:48,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:48,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:48,164 INFO L87 Difference]: Start difference. First operand 1580 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:48,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:48,295 INFO L93 Difference]: Finished difference Result 2981 states and 11860 transitions. [2021-03-11 14:36:48,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:48,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:48,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:48,303 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:36:48,303 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:36:48,303 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 206.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:36:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1575. [2021-03-11 14:36:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.495552731893266) internal successors, (7076), 1574 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:48,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7076 transitions. [2021-03-11 14:36:48,370 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7076 transitions. Word has length 28 [2021-03-11 14:36:48,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:48,370 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7076 transitions. [2021-03-11 14:36:48,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7076 transitions. [2021-03-11 14:36:48,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:48,373 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:48,373 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:48,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-11 14:36:48,373 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:48,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:48,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1005022448, now seen corresponding path program 57 times [2021-03-11 14:36:48,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:48,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083965796] [2021-03-11 14:36:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:48,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:48,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:48,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:48,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:48,393 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:48,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:48,400 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:48,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:48,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:48,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:48,434 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:48,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:48,456 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:48,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:48,477 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:48,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:48,503 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:48,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:48,534 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:48,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:48,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083965796] [2021-03-11 14:36:48,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:48,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:48,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353210427] [2021-03-11 14:36:48,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:48,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:48,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:48,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:48,579 INFO L87 Difference]: Start difference. First operand 1575 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:48,706 INFO L93 Difference]: Finished difference Result 2981 states and 11860 transitions. [2021-03-11 14:36:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:48,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:48,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:48,712 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:36:48,712 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:36:48,712 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:36:48,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1580. [2021-03-11 14:36:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.487017099430019) internal successors, (7085), 1579 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7085 transitions. [2021-03-11 14:36:48,758 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7085 transitions. Word has length 28 [2021-03-11 14:36:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:48,758 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7085 transitions. [2021-03-11 14:36:48,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:48,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7085 transitions. [2021-03-11 14:36:48,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:48,761 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:48,761 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:48,761 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-11 14:36:48,761 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:48,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:48,761 INFO L82 PathProgramCache]: Analyzing trace with hash 657630240, now seen corresponding path program 58 times [2021-03-11 14:36:48,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:48,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37768521] [2021-03-11 14:36:48,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:48,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:48,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:48,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:48,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:48,777 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:48,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:48,784 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:48,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:48,795 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:48,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:48,811 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:48,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:48,833 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:48,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:48,862 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:48,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:48,899 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:48,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:48,939 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:48,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:48,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:48,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37768521] [2021-03-11 14:36:48,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:48,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:48,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220092275] [2021-03-11 14:36:48,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:48,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:48,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:48,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:48,971 INFO L87 Difference]: Start difference. First operand 1580 states and 7085 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:49,093 INFO L93 Difference]: Finished difference Result 2983 states and 11859 transitions. [2021-03-11 14:36:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:49,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:49,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:49,099 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:36:49,099 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:36:49,099 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:49,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:36:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1575. [2021-03-11 14:36:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.492376111817027) internal successors, (7071), 1574 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7071 transitions. [2021-03-11 14:36:49,145 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7071 transitions. Word has length 28 [2021-03-11 14:36:49,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:49,145 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7071 transitions. [2021-03-11 14:36:49,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7071 transitions. [2021-03-11 14:36:49,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:49,147 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:49,147 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:49,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-11 14:36:49,148 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:49,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:49,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1350621008, now seen corresponding path program 59 times [2021-03-11 14:36:49,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:49,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163814614] [2021-03-11 14:36:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:49,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:49,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:49,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:49,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:49,167 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:49,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:49,174 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:49,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:49,183 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:49,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:49,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:49,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:49,218 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:49,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:49,239 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:49,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:49,265 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:49,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:49,299 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:49,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:49,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163814614] [2021-03-11 14:36:49,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:49,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:49,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415408305] [2021-03-11 14:36:49,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:49,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:49,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:49,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:49,328 INFO L87 Difference]: Start difference. First operand 1575 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:49,439 INFO L93 Difference]: Finished difference Result 2984 states and 11862 transitions. [2021-03-11 14:36:49,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:49,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:49,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:49,444 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:36:49,444 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:36:49,445 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 197.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:49,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:36:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1581. [2021-03-11 14:36:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.482278481012658) internal successors, (7082), 1580 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7082 transitions. [2021-03-11 14:36:49,493 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7082 transitions. Word has length 28 [2021-03-11 14:36:49,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:49,493 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7082 transitions. [2021-03-11 14:36:49,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7082 transitions. [2021-03-11 14:36:49,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:49,495 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:49,495 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:49,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-11 14:36:49,495 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:49,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:49,495 INFO L82 PathProgramCache]: Analyzing trace with hash -2026396098, now seen corresponding path program 60 times [2021-03-11 14:36:49,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:49,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193347244] [2021-03-11 14:36:49,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:49,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:49,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:49,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:49,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:49,514 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:49,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:49,521 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:49,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:49,532 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:49,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:49,547 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:49,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:49,570 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:49,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:49,599 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:49,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:49,633 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:49,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:49,674 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:49,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:49,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193347244] [2021-03-11 14:36:49,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:49,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:49,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876286783] [2021-03-11 14:36:49,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:49,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:49,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:49,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:49,706 INFO L87 Difference]: Start difference. First operand 1581 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:49,821 INFO L93 Difference]: Finished difference Result 2985 states and 11858 transitions. [2021-03-11 14:36:49,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:49,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:49,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:49,826 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:36:49,826 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:36:49,826 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 232.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:49,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:36:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1570. [2021-03-11 14:36:49,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4977692797960485) internal successors, (7057), 1569 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7057 transitions. [2021-03-11 14:36:49,873 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7057 transitions. Word has length 28 [2021-03-11 14:36:49,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:49,873 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7057 transitions. [2021-03-11 14:36:49,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7057 transitions. [2021-03-11 14:36:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:49,875 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:49,875 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:49,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-11 14:36:49,875 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:49,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:49,875 INFO L82 PathProgramCache]: Analyzing trace with hash 624298942, now seen corresponding path program 61 times [2021-03-11 14:36:49,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:49,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507912430] [2021-03-11 14:36:49,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:49,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:49,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:49,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:49,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:49,894 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:49,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:49,901 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:49,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:49,912 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:49,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:49,926 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:49,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:49,942 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:49,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:49,963 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:49,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:50,006 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:50,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:50,037 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:50,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:50,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507912430] [2021-03-11 14:36:50,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:50,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:50,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479140199] [2021-03-11 14:36:50,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:50,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:50,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:50,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:50,067 INFO L87 Difference]: Start difference. First operand 1570 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:50,200 INFO L93 Difference]: Finished difference Result 2985 states and 11869 transitions. [2021-03-11 14:36:50,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:50,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:50,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:50,206 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:36:50,206 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:36:50,206 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 215.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:36:50,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1580. [2021-03-11 14:36:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.487017099430019) internal successors, (7085), 1579 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7085 transitions. [2021-03-11 14:36:50,253 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7085 transitions. Word has length 28 [2021-03-11 14:36:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:50,253 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7085 transitions. [2021-03-11 14:36:50,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7085 transitions. [2021-03-11 14:36:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:50,255 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:50,255 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:50,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-11 14:36:50,255 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:50,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1436560860, now seen corresponding path program 62 times [2021-03-11 14:36:50,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:50,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034938467] [2021-03-11 14:36:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:50,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:50,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:50,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:50,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:50,283 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:50,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:50,289 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:50,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:50,299 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:50,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:50,313 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:50,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:50,329 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:50,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:50,350 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:50,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:50,393 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:50,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:50,427 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:50,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:50,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034938467] [2021-03-11 14:36:50,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:50,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:50,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109549797] [2021-03-11 14:36:50,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:50,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:50,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:50,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:50,457 INFO L87 Difference]: Start difference. First operand 1580 states and 7085 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:50,572 INFO L93 Difference]: Finished difference Result 2988 states and 11870 transitions. [2021-03-11 14:36:50,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:50,573 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:50,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:50,578 INFO L225 Difference]: With dead ends: 2988 [2021-03-11 14:36:50,578 INFO L226 Difference]: Without dead ends: 2965 [2021-03-11 14:36:50,578 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2021-03-11 14:36:50,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1575. [2021-03-11 14:36:50,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.492376111817027) internal successors, (7071), 1574 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7071 transitions. [2021-03-11 14:36:50,626 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7071 transitions. Word has length 28 [2021-03-11 14:36:50,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:50,626 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7071 transitions. [2021-03-11 14:36:50,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7071 transitions. [2021-03-11 14:36:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:50,628 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:50,628 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:50,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-11 14:36:50,629 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:50,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:50,629 INFO L82 PathProgramCache]: Analyzing trace with hash 89069140, now seen corresponding path program 63 times [2021-03-11 14:36:50,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:50,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400185946] [2021-03-11 14:36:50,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:50,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:50,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:50,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:50,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:50,647 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:50,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:50,654 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:50,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:50,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:50,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:50,677 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:50,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:50,694 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:50,715 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:50,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:50,741 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:50,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:50,772 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:50,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:50,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400185946] [2021-03-11 14:36:50,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:50,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:50,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691578826] [2021-03-11 14:36:50,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:50,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:50,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:50,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:50,802 INFO L87 Difference]: Start difference. First operand 1575 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:50,914 INFO L93 Difference]: Finished difference Result 2984 states and 11862 transitions. [2021-03-11 14:36:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:50,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:50,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:50,919 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:36:50,919 INFO L226 Difference]: Without dead ends: 2969 [2021-03-11 14:36:50,919 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 197.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-03-11 14:36:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1580. [2021-03-11 14:36:50,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.483850538315389) internal successors, (7080), 1579 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7080 transitions. [2021-03-11 14:36:50,966 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7080 transitions. Word has length 28 [2021-03-11 14:36:50,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:50,966 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7080 transitions. [2021-03-11 14:36:50,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7080 transitions. [2021-03-11 14:36:50,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:50,968 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:50,968 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:50,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-11 14:36:50,968 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:50,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:50,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1751721828, now seen corresponding path program 64 times [2021-03-11 14:36:50,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:50,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300693497] [2021-03-11 14:36:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:50,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:50,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:50,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:50,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:50,988 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:50,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:50,995 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:50,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:51,006 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:51,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:51,021 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:51,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:51,042 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:51,069 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:51,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:51,103 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:51,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:51,144 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:51,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:51,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300693497] [2021-03-11 14:36:51,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:51,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:51,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462101691] [2021-03-11 14:36:51,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:51,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:51,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:51,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:51,188 INFO L87 Difference]: Start difference. First operand 1580 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:51,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:51,311 INFO L93 Difference]: Finished difference Result 2986 states and 11861 transitions. [2021-03-11 14:36:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:51,312 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:51,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:51,317 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:36:51,318 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:36:51,318 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:51,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:36:51,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1575. [2021-03-11 14:36:51,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.489199491740788) internal successors, (7066), 1574 states have internal predecessors, (7066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7066 transitions. [2021-03-11 14:36:51,368 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7066 transitions. Word has length 28 [2021-03-11 14:36:51,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:51,368 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7066 transitions. [2021-03-11 14:36:51,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7066 transitions. [2021-03-11 14:36:51,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:51,371 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:51,371 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:51,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-11 14:36:51,371 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:51,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:51,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1433935084, now seen corresponding path program 65 times [2021-03-11 14:36:51,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:51,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860308619] [2021-03-11 14:36:51,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:51,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:51,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:51,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:51,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:51,391 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:51,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:51,399 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:51,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:51,410 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:51,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:51,426 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:51,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:51,447 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:51,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:51,478 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:51,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:51,513 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:51,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:51,555 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:51,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:51,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860308619] [2021-03-11 14:36:51,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:51,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:51,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985105585] [2021-03-11 14:36:51,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:51,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:51,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:51,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:51,594 INFO L87 Difference]: Start difference. First operand 1575 states and 7066 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:51,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:51,745 INFO L93 Difference]: Finished difference Result 2992 states and 11875 transitions. [2021-03-11 14:36:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:51,745 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:51,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:51,751 INFO L225 Difference]: With dead ends: 2992 [2021-03-11 14:36:51,751 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:36:51,751 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:51,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:36:51,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1582. [2021-03-11 14:36:51,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.477545857052498) internal successors, (7079), 1581 states have internal predecessors, (7079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7079 transitions. [2021-03-11 14:36:51,800 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7079 transitions. Word has length 28 [2021-03-11 14:36:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:51,800 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7079 transitions. [2021-03-11 14:36:51,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7079 transitions. [2021-03-11 14:36:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:51,802 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:51,802 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:51,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-11 14:36:51,803 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:51,803 INFO L82 PathProgramCache]: Analyzing trace with hash -2005389890, now seen corresponding path program 66 times [2021-03-11 14:36:51,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:51,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985067761] [2021-03-11 14:36:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:51,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:51,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:51,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:51,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:51,823 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:51,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:51,831 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:51,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:51,842 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:51,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:51,861 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:51,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:51,884 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:51,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:51,906 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:51,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:51,933 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:51,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:51,966 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:51,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:51,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985067761] [2021-03-11 14:36:51,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:51,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:51,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791828751] [2021-03-11 14:36:51,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:51,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:51,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:51,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:51,998 INFO L87 Difference]: Start difference. First operand 1582 states and 7079 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:52,115 INFO L93 Difference]: Finished difference Result 2991 states and 11866 transitions. [2021-03-11 14:36:52,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:52,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:52,121 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:36:52,122 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:36:52,122 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 217.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:52,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:36:52,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1570. [2021-03-11 14:36:52,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.494582536647546) internal successors, (7052), 1569 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7052 transitions. [2021-03-11 14:36:52,171 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7052 transitions. Word has length 28 [2021-03-11 14:36:52,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:52,171 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7052 transitions. [2021-03-11 14:36:52,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7052 transitions. [2021-03-11 14:36:52,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:52,173 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:52,173 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:52,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-11 14:36:52,173 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:52,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:52,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1379504544, now seen corresponding path program 67 times [2021-03-11 14:36:52,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:52,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326656464] [2021-03-11 14:36:52,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:52,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:52,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:52,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:52,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:52,189 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:52,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:52,196 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:52,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:52,206 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:52,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:52,220 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:52,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:52,238 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:52,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:52,263 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:52,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:52,290 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:52,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:52,324 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:52,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:52,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:52,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326656464] [2021-03-11 14:36:52,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:52,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:52,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794026346] [2021-03-11 14:36:52,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:52,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:52,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:52,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:52,356 INFO L87 Difference]: Start difference. First operand 1570 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:52,472 INFO L93 Difference]: Finished difference Result 2992 states and 11883 transitions. [2021-03-11 14:36:52,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:52,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:52,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:52,478 INFO L225 Difference]: With dead ends: 2992 [2021-03-11 14:36:52,478 INFO L226 Difference]: Without dead ends: 2976 [2021-03-11 14:36:52,478 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 207.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-03-11 14:36:52,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1582. [2021-03-11 14:36:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.481973434535105) internal successors, (7086), 1581 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7086 transitions. [2021-03-11 14:36:52,527 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7086 transitions. Word has length 28 [2021-03-11 14:36:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:52,527 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7086 transitions. [2021-03-11 14:36:52,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7086 transitions. [2021-03-11 14:36:52,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:52,529 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:52,529 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:52,529 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-11 14:36:52,530 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:52,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:52,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1426057756, now seen corresponding path program 68 times [2021-03-11 14:36:52,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:52,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115073839] [2021-03-11 14:36:52,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:52,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:52,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:52,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:52,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:52,555 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:52,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:52,563 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:52,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:52,575 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:52,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:52,591 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:52,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:52,613 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:52,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:52,644 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:52,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:52,679 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:52,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:52,720 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:52,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:52,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115073839] [2021-03-11 14:36:52,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:52,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:52,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581166860] [2021-03-11 14:36:52,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:52,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:52,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:52,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:52,760 INFO L87 Difference]: Start difference. First operand 1582 states and 7086 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:52,889 INFO L93 Difference]: Finished difference Result 2994 states and 11881 transitions. [2021-03-11 14:36:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:52,895 INFO L225 Difference]: With dead ends: 2994 [2021-03-11 14:36:52,895 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:36:52,895 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:36:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1576. [2021-03-11 14:36:52,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.488253968253968) internal successors, (7069), 1575 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7069 transitions. [2021-03-11 14:36:52,945 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7069 transitions. Word has length 28 [2021-03-11 14:36:52,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:52,945 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7069 transitions. [2021-03-11 14:36:52,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:52,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7069 transitions. [2021-03-11 14:36:52,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:52,947 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:52,947 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:52,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-11 14:36:52,947 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:52,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:52,947 INFO L82 PathProgramCache]: Analyzing trace with hash 844274742, now seen corresponding path program 69 times [2021-03-11 14:36:52,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:52,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258233105] [2021-03-11 14:36:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:52,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:52,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:52,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:52,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:52,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:52,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:52,973 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:52,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:52,984 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:52,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:52,999 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:52,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:53,017 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:53,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:53,040 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:53,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:53,068 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:53,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:53,101 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:53,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:53,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258233105] [2021-03-11 14:36:53,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:53,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:53,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902892139] [2021-03-11 14:36:53,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:53,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:53,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:53,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:53,132 INFO L87 Difference]: Start difference. First operand 1576 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:53,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:53,260 INFO L93 Difference]: Finished difference Result 2991 states and 11875 transitions. [2021-03-11 14:36:53,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:53,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:53,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:53,266 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:36:53,266 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:36:53,266 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 207.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:53,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:36:53,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1582. [2021-03-11 14:36:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.478178368121442) internal successors, (7080), 1581 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7080 transitions. [2021-03-11 14:36:53,315 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7080 transitions. Word has length 28 [2021-03-11 14:36:53,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:53,315 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7080 transitions. [2021-03-11 14:36:53,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7080 transitions. [2021-03-11 14:36:53,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:53,317 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:53,317 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:53,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-11 14:36:53,317 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:53,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:53,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1762224932, now seen corresponding path program 70 times [2021-03-11 14:36:53,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:53,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109104885] [2021-03-11 14:36:53,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:53,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:53,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:53,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:53,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:53,337 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:53,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:53,345 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:53,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:53,356 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:53,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:53,370 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:53,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:53,388 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:53,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:53,411 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:53,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:53,438 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:53,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:53,469 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:53,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:53,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109104885] [2021-03-11 14:36:53,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:53,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:53,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251586276] [2021-03-11 14:36:53,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:53,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:53,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:53,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:53,500 INFO L87 Difference]: Start difference. First operand 1582 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:53,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:53,612 INFO L93 Difference]: Finished difference Result 2992 states and 11871 transitions. [2021-03-11 14:36:53,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:53,612 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:53,618 INFO L225 Difference]: With dead ends: 2992 [2021-03-11 14:36:53,618 INFO L226 Difference]: Without dead ends: 2969 [2021-03-11 14:36:53,618 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 203.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-03-11 14:36:53,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1576. [2021-03-11 14:36:53,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.484444444444445) internal successors, (7063), 1575 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:53,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7063 transitions. [2021-03-11 14:36:53,665 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7063 transitions. Word has length 28 [2021-03-11 14:36:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:53,665 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7063 transitions. [2021-03-11 14:36:53,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7063 transitions. [2021-03-11 14:36:53,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:53,668 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:53,668 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:53,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-11 14:36:53,668 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:53,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:53,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1260594358, now seen corresponding path program 71 times [2021-03-11 14:36:53,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:53,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431781724] [2021-03-11 14:36:53,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:53,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:53,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:53,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:53,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:53,685 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:53,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:53,693 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:53,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:53,704 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:53,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:53,718 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:53,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:53,734 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:53,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:53,756 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:53,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:53,783 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:53,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:53,825 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:53,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:53,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:53,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431781724] [2021-03-11 14:36:53,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:53,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:53,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553807073] [2021-03-11 14:36:53,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:53,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:53,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:53,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:53,859 INFO L87 Difference]: Start difference. First operand 1576 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:54,012 INFO L93 Difference]: Finished difference Result 2996 states and 11880 transitions. [2021-03-11 14:36:54,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:54,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:54,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:54,017 INFO L225 Difference]: With dead ends: 2996 [2021-03-11 14:36:54,018 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:36:54,018 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:36:54,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1583. [2021-03-11 14:36:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.472819216182048) internal successors, (7076), 1582 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7076 transitions. [2021-03-11 14:36:54,064 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7076 transitions. Word has length 28 [2021-03-11 14:36:54,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:54,064 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7076 transitions. [2021-03-11 14:36:54,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7076 transitions. [2021-03-11 14:36:54,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:54,066 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:54,066 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:54,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-11 14:36:54,066 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:54,066 INFO L82 PathProgramCache]: Analyzing trace with hash 689139552, now seen corresponding path program 72 times [2021-03-11 14:36:54,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:54,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409783708] [2021-03-11 14:36:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:54,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:54,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:54,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:54,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:54,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:54,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:54,097 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:54,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:54,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:54,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:54,127 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:54,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:54,150 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:36:54,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:36:54,181 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:54,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:54,211 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:54,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:54,243 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:54,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:54,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409783708] [2021-03-11 14:36:54,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:54,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:54,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213945697] [2021-03-11 14:36:54,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:54,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:54,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:54,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:54,274 INFO L87 Difference]: Start difference. First operand 1583 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:54,397 INFO L93 Difference]: Finished difference Result 2995 states and 11871 transitions. [2021-03-11 14:36:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:54,398 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:54,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:54,403 INFO L225 Difference]: With dead ends: 2995 [2021-03-11 14:36:54,403 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:36:54,403 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 225.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:36:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1565. [2021-03-11 14:36:54,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.5) internal successors, (7038), 1564 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7038 transitions. [2021-03-11 14:36:54,449 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7038 transitions. Word has length 28 [2021-03-11 14:36:54,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:54,449 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7038 transitions. [2021-03-11 14:36:54,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7038 transitions. [2021-03-11 14:36:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:54,451 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:54,451 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:54,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-11 14:36:54,451 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:54,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1952084594, now seen corresponding path program 73 times [2021-03-11 14:36:54,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:54,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744281213] [2021-03-11 14:36:54,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:54,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:54,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:54,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:54,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:54,469 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:54,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:54,476 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:54,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:54,486 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:54,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:54,499 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:54,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:54,516 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:54,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:54,553 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:54,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:54,595 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:54,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:54,626 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:54,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:54,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:54,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744281213] [2021-03-11 14:36:54,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:54,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:54,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485013286] [2021-03-11 14:36:54,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:54,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:54,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:54,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:54,657 INFO L87 Difference]: Start difference. First operand 1565 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:54,770 INFO L93 Difference]: Finished difference Result 3018 states and 11947 transitions. [2021-03-11 14:36:54,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:54,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:54,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:54,775 INFO L225 Difference]: With dead ends: 3018 [2021-03-11 14:36:54,775 INFO L226 Difference]: Without dead ends: 3003 [2021-03-11 14:36:54,776 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 230.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2021-03-11 14:36:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 1586. [2021-03-11 14:36:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.483280757097792) internal successors, (7106), 1585 states have internal predecessors, (7106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7106 transitions. [2021-03-11 14:36:54,822 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7106 transitions. Word has length 28 [2021-03-11 14:36:54,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:54,822 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7106 transitions. [2021-03-11 14:36:54,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7106 transitions. [2021-03-11 14:36:54,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:54,824 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:54,824 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:54,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-11 14:36:54,824 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:54,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:54,825 INFO L82 PathProgramCache]: Analyzing trace with hash -853477706, now seen corresponding path program 74 times [2021-03-11 14:36:54,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:54,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194502126] [2021-03-11 14:36:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:54,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:54,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:54,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:54,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:54,839 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:54,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:54,846 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:54,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:54,856 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:54,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:54,869 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:54,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:54,886 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:54,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:54,923 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:54,966 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:54,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:54,999 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:54,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:55,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194502126] [2021-03-11 14:36:55,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:55,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:55,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412482171] [2021-03-11 14:36:55,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:55,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:55,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:55,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:55,029 INFO L87 Difference]: Start difference. First operand 1586 states and 7106 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:55,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:55,125 INFO L93 Difference]: Finished difference Result 3023 states and 11951 transitions. [2021-03-11 14:36:55,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:55,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:55,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:55,131 INFO L225 Difference]: With dead ends: 3023 [2021-03-11 14:36:55,131 INFO L226 Difference]: Without dead ends: 2997 [2021-03-11 14:36:55,131 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:55,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-03-11 14:36:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 1580. [2021-03-11 14:36:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.489550348321723) internal successors, (7089), 1579 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7089 transitions. [2021-03-11 14:36:55,177 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7089 transitions. Word has length 28 [2021-03-11 14:36:55,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:55,178 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7089 transitions. [2021-03-11 14:36:55,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7089 transitions. [2021-03-11 14:36:55,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:55,180 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:55,180 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:55,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-11 14:36:55,180 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:55,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:55,180 INFO L82 PathProgramCache]: Analyzing trace with hash -731941744, now seen corresponding path program 75 times [2021-03-11 14:36:55,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:55,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535449349] [2021-03-11 14:36:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:55,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:55,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:55,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:55,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:55,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:55,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:55,206 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:55,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:55,217 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:55,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:55,233 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:55,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:55,253 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:55,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:55,290 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:55,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:55,335 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:55,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:55,367 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:55,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:55,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:55,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535449349] [2021-03-11 14:36:55,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:55,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:55,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154711367] [2021-03-11 14:36:55,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:55,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:55,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:55,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:55,404 INFO L87 Difference]: Start difference. First operand 1580 states and 7089 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:55,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:55,515 INFO L93 Difference]: Finished difference Result 3015 states and 11936 transitions. [2021-03-11 14:36:55,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:55,515 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:55,520 INFO L225 Difference]: With dead ends: 3015 [2021-03-11 14:36:55,520 INFO L226 Difference]: Without dead ends: 3000 [2021-03-11 14:36:55,520 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:55,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2021-03-11 14:36:55,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1585. [2021-03-11 14:36:55,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.481060606060606) internal successors, (7098), 1584 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:55,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7098 transitions. [2021-03-11 14:36:55,567 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7098 transitions. Word has length 28 [2021-03-11 14:36:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:55,567 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7098 transitions. [2021-03-11 14:36:55,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7098 transitions. [2021-03-11 14:36:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:55,569 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:55,569 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:55,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-11 14:36:55,569 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:55,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:55,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1502165750, now seen corresponding path program 76 times [2021-03-11 14:36:55,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:55,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084517790] [2021-03-11 14:36:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:55,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:55,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:55,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:55,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:55,584 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:55,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:55,590 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:55,617 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:55,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:55,631 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:55,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:55,648 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:55,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:55,685 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:55,729 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:55,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:55,761 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:55,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:55,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084517790] [2021-03-11 14:36:55,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:55,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:55,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992781323] [2021-03-11 14:36:55,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:55,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:55,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:55,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:55,791 INFO L87 Difference]: Start difference. First operand 1585 states and 7098 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:55,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:55,957 INFO L93 Difference]: Finished difference Result 3018 states and 11937 transitions. [2021-03-11 14:36:55,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:55,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:55,965 INFO L225 Difference]: With dead ends: 3018 [2021-03-11 14:36:55,965 INFO L226 Difference]: Without dead ends: 2995 [2021-03-11 14:36:55,965 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2021-03-11 14:36:56,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1580. [2021-03-11 14:36:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.486383787207093) internal successors, (7084), 1579 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7084 transitions. [2021-03-11 14:36:56,014 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7084 transitions. Word has length 28 [2021-03-11 14:36:56,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:56,014 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7084 transitions. [2021-03-11 14:36:56,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7084 transitions. [2021-03-11 14:36:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:56,016 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:56,016 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:56,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-11 14:36:56,017 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:56,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:56,017 INFO L82 PathProgramCache]: Analyzing trace with hash -315622128, now seen corresponding path program 77 times [2021-03-11 14:36:56,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:56,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591209414] [2021-03-11 14:36:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:56,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:56,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:56,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:56,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:56,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:56,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:56,043 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:56,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:56,054 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:56,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:56,070 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:56,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:56,089 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:56,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:56,134 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:36:56,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:36:56,173 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:56,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:56,216 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:56,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:56,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591209414] [2021-03-11 14:36:56,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:56,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:56,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768797333] [2021-03-11 14:36:56,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:56,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:56,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:56,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:56,256 INFO L87 Difference]: Start difference. First operand 1580 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:56,384 INFO L93 Difference]: Finished difference Result 3030 states and 11961 transitions. [2021-03-11 14:36:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:56,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:56,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:56,389 INFO L225 Difference]: With dead ends: 3030 [2021-03-11 14:36:56,389 INFO L226 Difference]: Without dead ends: 3010 [2021-03-11 14:36:56,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:56,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2021-03-11 14:36:56,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 1590. [2021-03-11 14:36:56,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.468848332284455) internal successors, (7101), 1589 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7101 transitions. [2021-03-11 14:36:56,438 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7101 transitions. Word has length 28 [2021-03-11 14:36:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:56,438 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7101 transitions. [2021-03-11 14:36:56,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7101 transitions. [2021-03-11 14:36:56,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:56,440 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:56,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:56,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-11 14:36:56,441 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:56,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:56,441 INFO L82 PathProgramCache]: Analyzing trace with hash 429080370, now seen corresponding path program 78 times [2021-03-11 14:36:56,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:56,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976300316] [2021-03-11 14:36:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:56,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:56,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:56,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:56,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:56,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:56,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:56,468 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:56,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:56,480 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:56,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:56,494 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:56,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:56,512 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:56,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:56,548 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:36:56,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:36:56,576 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:56,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:56,608 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:56,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976300316] [2021-03-11 14:36:56,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:56,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:56,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138666437] [2021-03-11 14:36:56,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:56,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:56,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:56,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:56,639 INFO L87 Difference]: Start difference. First operand 1590 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:56,787 INFO L93 Difference]: Finished difference Result 3028 states and 11949 transitions. [2021-03-11 14:36:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:56,788 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:56,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:56,793 INFO L225 Difference]: With dead ends: 3028 [2021-03-11 14:36:56,793 INFO L226 Difference]: Without dead ends: 2993 [2021-03-11 14:36:56,793 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 225.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:56,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-03-11 14:36:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 1573. [2021-03-11 14:36:56,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.493638676844784) internal successors, (7064), 1572 states have internal predecessors, (7064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7064 transitions. [2021-03-11 14:36:56,841 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7064 transitions. Word has length 28 [2021-03-11 14:36:56,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:56,841 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7064 transitions. [2021-03-11 14:36:56,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7064 transitions. [2021-03-11 14:36:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:56,843 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:56,843 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:56,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-11 14:36:56,844 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:56,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1755137380, now seen corresponding path program 79 times [2021-03-11 14:36:56,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:56,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970099378] [2021-03-11 14:36:56,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:56,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:56,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:56,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:56,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:56,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:56,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:56,868 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:56,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:56,878 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:56,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:56,892 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:56,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:56,909 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:56,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:56,930 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:56,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:56,972 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:56,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:57,004 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:57,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:57,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970099378] [2021-03-11 14:36:57,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:57,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:57,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511634865] [2021-03-11 14:36:57,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:57,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:57,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:57,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:57,041 INFO L87 Difference]: Start difference. First operand 1573 states and 7064 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:57,160 INFO L93 Difference]: Finished difference Result 3014 states and 11932 transitions. [2021-03-11 14:36:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:57,160 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:57,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:57,166 INFO L225 Difference]: With dead ends: 3014 [2021-03-11 14:36:57,166 INFO L226 Difference]: Without dead ends: 2999 [2021-03-11 14:36:57,166 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 223.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-03-11 14:36:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 1585. [2021-03-11 14:36:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.480429292929293) internal successors, (7097), 1584 states have internal predecessors, (7097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7097 transitions. [2021-03-11 14:36:57,212 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7097 transitions. Word has length 28 [2021-03-11 14:36:57,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:57,212 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7097 transitions. [2021-03-11 14:36:57,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7097 transitions. [2021-03-11 14:36:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:57,214 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:57,215 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:57,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-11 14:36:57,215 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:57,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:57,215 INFO L82 PathProgramCache]: Analyzing trace with hash -265732384, now seen corresponding path program 80 times [2021-03-11 14:36:57,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:57,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560229744] [2021-03-11 14:36:57,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:57,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:57,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:57,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:57,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:57,229 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:57,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:57,236 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:57,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:57,246 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:57,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:57,260 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:57,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:57,282 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:57,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:57,307 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:36:57,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:36:57,349 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:57,383 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:57,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:57,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:57,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560229744] [2021-03-11 14:36:57,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:57,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:57,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185632177] [2021-03-11 14:36:57,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:57,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:57,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:57,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:57,414 INFO L87 Difference]: Start difference. First operand 1585 states and 7097 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:57,537 INFO L93 Difference]: Finished difference Result 3019 states and 11936 transitions. [2021-03-11 14:36:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:57,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:57,543 INFO L225 Difference]: With dead ends: 3019 [2021-03-11 14:36:57,543 INFO L226 Difference]: Without dead ends: 2993 [2021-03-11 14:36:57,543 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-03-11 14:36:57,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 1579. [2021-03-11 14:36:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.486692015209125) internal successors, (7080), 1578 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7080 transitions. [2021-03-11 14:36:57,590 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7080 transitions. Word has length 28 [2021-03-11 14:36:57,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:57,590 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7080 transitions. [2021-03-11 14:36:57,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7080 transitions. [2021-03-11 14:36:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:57,592 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:57,592 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:57,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-11 14:36:57,592 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:57,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:57,592 INFO L82 PathProgramCache]: Analyzing trace with hash -679426224, now seen corresponding path program 81 times [2021-03-11 14:36:57,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:57,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796992341] [2021-03-11 14:36:57,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:57,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:57,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:57,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:57,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:57,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:57,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:57,613 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:57,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:57,623 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:57,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:57,637 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:57,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:57,654 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:57,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:57,675 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:57,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:57,701 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:57,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:57,734 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:57,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:57,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796992341] [2021-03-11 14:36:57,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:57,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:57,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053835627] [2021-03-11 14:36:57,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:57,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:57,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:57,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:57,766 INFO L87 Difference]: Start difference. First operand 1579 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:57,888 INFO L93 Difference]: Finished difference Result 3010 states and 11919 transitions. [2021-03-11 14:36:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:57,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:57,894 INFO L225 Difference]: With dead ends: 3010 [2021-03-11 14:36:57,894 INFO L226 Difference]: Without dead ends: 2995 [2021-03-11 14:36:57,894 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 203.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:57,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2021-03-11 14:36:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1584. [2021-03-11 14:36:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.47820593809223) internal successors, (7089), 1583 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7089 transitions. [2021-03-11 14:36:57,969 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7089 transitions. Word has length 28 [2021-03-11 14:36:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:57,969 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7089 transitions. [2021-03-11 14:36:57,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7089 transitions. [2021-03-11 14:36:57,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:57,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:57,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:57,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-11 14:36:57,972 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:57,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:57,972 INFO L82 PathProgramCache]: Analyzing trace with hash 983226464, now seen corresponding path program 82 times [2021-03-11 14:36:57,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:57,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131265792] [2021-03-11 14:36:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:57,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:57,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:57,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:57,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:57,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:57,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:57,993 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:57,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:58,003 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:58,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:58,019 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:58,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:58,036 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:58,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:58,056 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:58,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:58,081 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:58,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:58,124 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:58,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:58,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131265792] [2021-03-11 14:36:58,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:58,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:58,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457583785] [2021-03-11 14:36:58,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:58,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:58,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:58,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:58,156 INFO L87 Difference]: Start difference. First operand 1584 states and 7089 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:58,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:58,279 INFO L93 Difference]: Finished difference Result 3012 states and 11918 transitions. [2021-03-11 14:36:58,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:58,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:58,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:58,285 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:36:58,285 INFO L226 Difference]: Without dead ends: 2990 [2021-03-11 14:36:58,285 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 197.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-03-11 14:36:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1579. [2021-03-11 14:36:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.483523447401774) internal successors, (7075), 1578 states have internal predecessors, (7075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:58,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7075 transitions. [2021-03-11 14:36:58,331 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7075 transitions. Word has length 28 [2021-03-11 14:36:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:58,331 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7075 transitions. [2021-03-11 14:36:58,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:58,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7075 transitions. [2021-03-11 14:36:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:58,333 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:58,334 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:58,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-11 14:36:58,334 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:58,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:58,334 INFO L82 PathProgramCache]: Analyzing trace with hash -263106608, now seen corresponding path program 83 times [2021-03-11 14:36:58,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:58,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680100756] [2021-03-11 14:36:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:58,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:58,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:58,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:58,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:58,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:58,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:58,358 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:58,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:58,369 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:58,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:58,384 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:58,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:58,408 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:58,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:58,435 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:58,469 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:36:58,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:36:58,507 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:58,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:58,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680100756] [2021-03-11 14:36:58,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:58,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:58,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127707179] [2021-03-11 14:36:58,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:58,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:58,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:58,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:58,541 INFO L87 Difference]: Start difference. First operand 1579 states and 7075 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:58,646 INFO L93 Difference]: Finished difference Result 3023 states and 11940 transitions. [2021-03-11 14:36:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:58,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:58,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:58,652 INFO L225 Difference]: With dead ends: 3023 [2021-03-11 14:36:58,652 INFO L226 Difference]: Without dead ends: 3003 [2021-03-11 14:36:58,652 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2021-03-11 14:36:58,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 1587. [2021-03-11 14:36:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.469735182849937) internal successors, (7089), 1586 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7089 transitions. [2021-03-11 14:36:58,699 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7089 transitions. Word has length 28 [2021-03-11 14:36:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:58,699 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7089 transitions. [2021-03-11 14:36:58,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7089 transitions. [2021-03-11 14:36:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:58,701 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:58,701 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:58,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-11 14:36:58,701 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:58,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:58,701 INFO L82 PathProgramCache]: Analyzing trace with hash -89858916, now seen corresponding path program 84 times [2021-03-11 14:36:58,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:58,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029359051] [2021-03-11 14:36:58,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:58,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:58,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:58,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:58,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:58,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:58,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:58,727 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:58,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:58,738 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:58,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:58,753 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:58,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:58,777 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:58,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:58,804 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:36:58,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:36:58,832 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:58,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:58,863 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:58,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:58,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029359051] [2021-03-11 14:36:58,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:58,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:58,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190288370] [2021-03-11 14:36:58,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:58,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:58,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:58,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:58,893 INFO L87 Difference]: Start difference. First operand 1587 states and 7089 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:59,023 INFO L93 Difference]: Finished difference Result 3020 states and 11927 transitions. [2021-03-11 14:36:59,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:59,026 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:59,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:59,031 INFO L225 Difference]: With dead ends: 3020 [2021-03-11 14:36:59,031 INFO L226 Difference]: Without dead ends: 2989 [2021-03-11 14:36:59,032 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-03-11 14:36:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1573. [2021-03-11 14:36:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.489821882951654) internal successors, (7058), 1572 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7058 transitions. [2021-03-11 14:36:59,078 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7058 transitions. Word has length 28 [2021-03-11 14:36:59,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:59,078 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7058 transitions. [2021-03-11 14:36:59,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7058 transitions. [2021-03-11 14:36:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:59,080 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:59,080 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:59,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-11 14:36:59,080 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:59,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:59,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1744634276, now seen corresponding path program 85 times [2021-03-11 14:36:59,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:59,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429950114] [2021-03-11 14:36:59,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:59,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:59,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:59,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:59,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:59,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:59,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:59,104 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:59,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:59,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:59,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:59,127 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:59,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:59,144 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:59,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:59,165 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:59,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:59,209 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:59,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:59,240 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:59,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:59,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429950114] [2021-03-11 14:36:59,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:59,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:59,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738988164] [2021-03-11 14:36:59,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:59,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:59,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:59,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:59,270 INFO L87 Difference]: Start difference. First operand 1573 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:59,391 INFO L93 Difference]: Finished difference Result 3006 states and 11911 transitions. [2021-03-11 14:36:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:59,391 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:59,397 INFO L225 Difference]: With dead ends: 3006 [2021-03-11 14:36:59,397 INFO L226 Difference]: Without dead ends: 2991 [2021-03-11 14:36:59,397 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 214.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:59,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-03-11 14:36:59,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1583. [2021-03-11 14:36:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.47914032869785) internal successors, (7086), 1582 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7086 transitions. [2021-03-11 14:36:59,443 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7086 transitions. Word has length 28 [2021-03-11 14:36:59,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:59,443 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7086 transitions. [2021-03-11 14:36:59,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7086 transitions. [2021-03-11 14:36:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:59,445 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:59,445 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:59,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-11 14:36:59,445 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:59,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:59,446 INFO L82 PathProgramCache]: Analyzing trace with hash 489473218, now seen corresponding path program 86 times [2021-03-11 14:36:59,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:59,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974963079] [2021-03-11 14:36:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:59,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:59,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:59,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:59,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:59,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:59,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:59,466 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:59,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:59,476 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:59,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:59,489 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:59,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:59,506 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:59,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:59,527 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:36:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:36:59,571 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:59,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:36:59,603 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:36:59,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:36:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:36:59,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974963079] [2021-03-11 14:36:59,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:36:59,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:36:59,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096162939] [2021-03-11 14:36:59,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:36:59,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:36:59,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:36:59,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:36:59,633 INFO L87 Difference]: Start difference. First operand 1583 states and 7086 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:36:59,794 INFO L93 Difference]: Finished difference Result 3009 states and 11912 transitions. [2021-03-11 14:36:59,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:36:59,794 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:36:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:36:59,799 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:36:59,799 INFO L226 Difference]: Without dead ends: 2986 [2021-03-11 14:36:59,799 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:36:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2021-03-11 14:36:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1578. [2021-03-11 14:36:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.484464172479392) internal successors, (7072), 1577 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7072 transitions. [2021-03-11 14:36:59,846 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7072 transitions. Word has length 28 [2021-03-11 14:36:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:36:59,846 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7072 transitions. [2021-03-11 14:36:59,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:36:59,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7072 transitions. [2021-03-11 14:36:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:36:59,849 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:36:59,849 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:36:59,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-11 14:36:59,849 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:36:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:36:59,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2015103218, now seen corresponding path program 87 times [2021-03-11 14:36:59,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:36:59,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240311513] [2021-03-11 14:36:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:36:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:36:59,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:59,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:36:59,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:36:59,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:36:59,868 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:36:59,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:36:59,875 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:36:59,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:36:59,886 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:36:59,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:36:59,902 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:36:59,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:36:59,926 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:36:59,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:36:59,951 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:36:59,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:36:59,978 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:36:59,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:00,010 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:00,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:00,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240311513] [2021-03-11 14:37:00,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:00,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:00,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685647220] [2021-03-11 14:37:00,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:00,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:00,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:00,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:00,047 INFO L87 Difference]: Start difference. First operand 1578 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:00,177 INFO L93 Difference]: Finished difference Result 3005 states and 11904 transitions. [2021-03-11 14:37:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:00,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:00,183 INFO L225 Difference]: With dead ends: 3005 [2021-03-11 14:37:00,183 INFO L226 Difference]: Without dead ends: 2990 [2021-03-11 14:37:00,183 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 218.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:00,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-03-11 14:37:00,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1583. [2021-03-11 14:37:00,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.475979772439949) internal successors, (7081), 1582 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7081 transitions. [2021-03-11 14:37:00,230 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7081 transitions. Word has length 28 [2021-03-11 14:37:00,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:00,230 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7081 transitions. [2021-03-11 14:37:00,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7081 transitions. [2021-03-11 14:37:00,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:00,233 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:00,233 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:00,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-11 14:37:00,233 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:00,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:00,233 INFO L82 PathProgramCache]: Analyzing trace with hash -617211390, now seen corresponding path program 88 times [2021-03-11 14:37:00,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:00,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949681192] [2021-03-11 14:37:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:00,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:00,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:00,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:00,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:00,249 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:00,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:00,255 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:00,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:00,265 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:00,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:00,279 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:00,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:00,296 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:00,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:00,316 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:00,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:00,342 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:00,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:00,374 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:00,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:00,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949681192] [2021-03-11 14:37:00,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:00,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:00,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503420056] [2021-03-11 14:37:00,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:00,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:00,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:00,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:00,404 INFO L87 Difference]: Start difference. First operand 1583 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:00,524 INFO L93 Difference]: Finished difference Result 3007 states and 11903 transitions. [2021-03-11 14:37:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:00,525 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:00,530 INFO L225 Difference]: With dead ends: 3007 [2021-03-11 14:37:00,530 INFO L226 Difference]: Without dead ends: 2985 [2021-03-11 14:37:00,530 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 197.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:00,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2021-03-11 14:37:00,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1578. [2021-03-11 14:37:00,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.481293595434369) internal successors, (7067), 1577 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7067 transitions. [2021-03-11 14:37:00,577 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7067 transitions. Word has length 28 [2021-03-11 14:37:00,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:00,577 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7067 transitions. [2021-03-11 14:37:00,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7067 transitions. [2021-03-11 14:37:00,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:00,579 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:00,579 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:00,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-11 14:37:00,579 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:00,579 INFO L82 PathProgramCache]: Analyzing trace with hash 492098994, now seen corresponding path program 89 times [2021-03-11 14:37:00,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:00,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12479847] [2021-03-11 14:37:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:00,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:00,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:00,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:00,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:00,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:00,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:00,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:00,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:00,612 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:00,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:00,625 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:00,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:00,642 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:00,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:00,663 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:00,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:00,690 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:00,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:00,722 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:00,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:00,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12479847] [2021-03-11 14:37:00,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:00,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:00,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024681565] [2021-03-11 14:37:00,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:00,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:00,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:00,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:00,752 INFO L87 Difference]: Start difference. First operand 1578 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:00,871 INFO L93 Difference]: Finished difference Result 3013 states and 11917 transitions. [2021-03-11 14:37:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:00,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:00,876 INFO L225 Difference]: With dead ends: 3013 [2021-03-11 14:37:00,876 INFO L226 Difference]: Without dead ends: 2995 [2021-03-11 14:37:00,876 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 202.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2021-03-11 14:37:00,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1585. [2021-03-11 14:37:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.46969696969697) internal successors, (7080), 1584 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7080 transitions. [2021-03-11 14:37:00,924 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7080 transitions. Word has length 28 [2021-03-11 14:37:00,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:00,924 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7080 transitions. [2021-03-11 14:37:00,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:00,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7080 transitions. [2021-03-11 14:37:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:00,927 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:00,927 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:00,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-11 14:37:00,927 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:00,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:00,927 INFO L82 PathProgramCache]: Analyzing trace with hash -79355812, now seen corresponding path program 90 times [2021-03-11 14:37:00,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:00,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687837087] [2021-03-11 14:37:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:00,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:00,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:00,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:00,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:00,941 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:00,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:00,948 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:00,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:00,958 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:00,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:00,971 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:00,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:00,990 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:00,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:01,011 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:01,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:01,039 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:01,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:01,071 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:01,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:01,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:01,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687837087] [2021-03-11 14:37:01,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:01,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:01,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407070532] [2021-03-11 14:37:01,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:01,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:01,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:01,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:01,102 INFO L87 Difference]: Start difference. First operand 1585 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:01,228 INFO L93 Difference]: Finished difference Result 3012 states and 11908 transitions. [2021-03-11 14:37:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:01,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:01,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:01,234 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:37:01,234 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:37:01,234 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 202.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:01,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:37:01,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1573. [2021-03-11 14:37:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.486641221374046) internal successors, (7053), 1572 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7053 transitions. [2021-03-11 14:37:01,281 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7053 transitions. Word has length 28 [2021-03-11 14:37:01,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:01,281 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7053 transitions. [2021-03-11 14:37:01,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:01,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7053 transitions. [2021-03-11 14:37:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:01,284 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:01,284 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:01,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-11 14:37:01,284 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:01,284 INFO L82 PathProgramCache]: Analyzing trace with hash -234223072, now seen corresponding path program 91 times [2021-03-11 14:37:01,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:01,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548926164] [2021-03-11 14:37:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:01,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:01,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:01,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:01,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:01,303 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:01,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:01,310 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:01,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:01,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:01,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:01,337 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:01,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:01,361 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:01,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:01,390 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:01,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:01,425 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:01,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:01,468 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:01,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:01,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548926164] [2021-03-11 14:37:01,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:01,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:01,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251880548] [2021-03-11 14:37:01,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:01,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:01,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:01,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:01,507 INFO L87 Difference]: Start difference. First operand 1573 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:01,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:01,618 INFO L93 Difference]: Finished difference Result 3039 states and 11979 transitions. [2021-03-11 14:37:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:01,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:01,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:01,624 INFO L225 Difference]: With dead ends: 3039 [2021-03-11 14:37:01,624 INFO L226 Difference]: Without dead ends: 3019 [2021-03-11 14:37:01,624 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2021-03-11 14:37:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 1593. [2021-03-11 14:37:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 4.461683417085427) internal successors, (7103), 1592 states have internal predecessors, (7103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:01,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 7103 transitions. [2021-03-11 14:37:01,672 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 7103 transitions. Word has length 28 [2021-03-11 14:37:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:01,672 INFO L480 AbstractCegarLoop]: Abstraction has 1593 states and 7103 transitions. [2021-03-11 14:37:01,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 7103 transitions. [2021-03-11 14:37:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:01,674 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:01,674 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:01,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-11 14:37:01,674 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:01,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:01,675 INFO L82 PathProgramCache]: Analyzing trace with hash 510479426, now seen corresponding path program 92 times [2021-03-11 14:37:01,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:01,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070700334] [2021-03-11 14:37:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:01,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:01,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:01,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:01,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:01,699 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:01,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:01,706 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:01,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:01,717 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:01,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:01,738 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:01,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:01,762 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:01,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:01,784 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:01,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:01,812 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:01,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:01,844 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:01,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:01,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070700334] [2021-03-11 14:37:01,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:01,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:01,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565432199] [2021-03-11 14:37:01,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:01,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:01,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:01,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:01,875 INFO L87 Difference]: Start difference. First operand 1593 states and 7103 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:01,989 INFO L93 Difference]: Finished difference Result 3037 states and 11967 transitions. [2021-03-11 14:37:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:01,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:01,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:01,995 INFO L225 Difference]: With dead ends: 3037 [2021-03-11 14:37:01,995 INFO L226 Difference]: Without dead ends: 3009 [2021-03-11 14:37:01,995 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:02,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2021-03-11 14:37:02,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 1583. [2021-03-11 14:37:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.4734513274336285) internal successors, (7077), 1582 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7077 transitions. [2021-03-11 14:37:02,043 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7077 transitions. Word has length 28 [2021-03-11 14:37:02,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:02,043 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7077 transitions. [2021-03-11 14:37:02,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7077 transitions. [2021-03-11 14:37:02,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:02,045 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:02,045 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:02,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-11 14:37:02,045 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:02,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:02,046 INFO L82 PathProgramCache]: Analyzing trace with hash -769452874, now seen corresponding path program 93 times [2021-03-11 14:37:02,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:02,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227314509] [2021-03-11 14:37:02,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:02,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:02,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:02,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:02,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:02,063 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:02,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:02,070 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:02,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:02,089 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:02,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:02,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:02,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:02,128 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:02,150 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:02,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:02,177 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:02,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:02,210 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:02,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:02,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227314509] [2021-03-11 14:37:02,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:02,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:02,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038935099] [2021-03-11 14:37:02,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:02,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:02,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:02,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:02,241 INFO L87 Difference]: Start difference. First operand 1583 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:02,338 INFO L93 Difference]: Finished difference Result 3036 states and 11964 transitions. [2021-03-11 14:37:02,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:02,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:02,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:02,343 INFO L225 Difference]: With dead ends: 3036 [2021-03-11 14:37:02,343 INFO L226 Difference]: Without dead ends: 3016 [2021-03-11 14:37:02,343 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 197.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:02,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2021-03-11 14:37:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1591. [2021-03-11 14:37:02,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1590 states have (on average 4.459748427672956) internal successors, (7091), 1590 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 7091 transitions. [2021-03-11 14:37:02,390 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 7091 transitions. Word has length 28 [2021-03-11 14:37:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:02,390 INFO L480 AbstractCegarLoop]: Abstraction has 1591 states and 7091 transitions. [2021-03-11 14:37:02,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 7091 transitions. [2021-03-11 14:37:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:02,392 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:02,393 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:02,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-11 14:37:02,393 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:02,393 INFO L82 PathProgramCache]: Analyzing trace with hash -596205182, now seen corresponding path program 94 times [2021-03-11 14:37:02,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:02,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125253485] [2021-03-11 14:37:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:02,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:02,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:02,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:02,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:02,408 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:02,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:02,414 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:02,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:02,424 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:02,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:02,438 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:02,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:02,455 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:02,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:02,478 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:02,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:02,504 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:02,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:02,536 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:02,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:02,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125253485] [2021-03-11 14:37:02,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:02,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:02,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125541459] [2021-03-11 14:37:02,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:02,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:02,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:02,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:02,567 INFO L87 Difference]: Start difference. First operand 1591 states and 7091 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:02,697 INFO L93 Difference]: Finished difference Result 3033 states and 11951 transitions. [2021-03-11 14:37:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:02,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:02,703 INFO L225 Difference]: With dead ends: 3033 [2021-03-11 14:37:02,703 INFO L226 Difference]: Without dead ends: 3008 [2021-03-11 14:37:02,703 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:02,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-03-11 14:37:02,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1583. [2021-03-11 14:37:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.4683944374209865) internal successors, (7069), 1582 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7069 transitions. [2021-03-11 14:37:02,753 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7069 transitions. Word has length 28 [2021-03-11 14:37:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:02,753 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7069 transitions. [2021-03-11 14:37:02,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:02,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7069 transitions. [2021-03-11 14:37:02,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:02,755 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:02,755 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:02,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-11 14:37:02,755 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:02,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1586190582, now seen corresponding path program 95 times [2021-03-11 14:37:02,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:02,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349613033] [2021-03-11 14:37:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:02,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:02,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:02,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:02,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:02,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:02,782 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:02,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:02,793 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:02,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:02,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:02,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:02,834 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:02,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:02,864 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:02,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:02,898 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:02,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:02,935 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:02,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:02,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:02,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349613033] [2021-03-11 14:37:02,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:02,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:02,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161344621] [2021-03-11 14:37:02,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:02,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:02,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:02,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:02,967 INFO L87 Difference]: Start difference. First operand 1583 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:03,092 INFO L93 Difference]: Finished difference Result 3031 states and 11948 transitions. [2021-03-11 14:37:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:03,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:03,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:03,098 INFO L225 Difference]: With dead ends: 3031 [2021-03-11 14:37:03,098 INFO L226 Difference]: Without dead ends: 3013 [2021-03-11 14:37:03,098 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:03,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2021-03-11 14:37:03,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 1590. [2021-03-11 14:37:03,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.456891126494651) internal successors, (7082), 1589 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7082 transitions. [2021-03-11 14:37:03,148 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7082 transitions. Word has length 28 [2021-03-11 14:37:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:03,148 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7082 transitions. [2021-03-11 14:37:03,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7082 transitions. [2021-03-11 14:37:03,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:03,150 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:03,150 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:03,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-11 14:37:03,150 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:03,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:03,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1014735776, now seen corresponding path program 96 times [2021-03-11 14:37:03,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:03,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402695799] [2021-03-11 14:37:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:03,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:03,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:03,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:03,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:03,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:03,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:03,173 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:03,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:03,183 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:03,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:03,198 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:03,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:03,216 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:03,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:03,239 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:03,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:03,266 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:03,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:03,299 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:03,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:03,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402695799] [2021-03-11 14:37:03,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:03,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:03,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668844079] [2021-03-11 14:37:03,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:03,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:03,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:03,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:03,333 INFO L87 Difference]: Start difference. First operand 1590 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:03,457 INFO L93 Difference]: Finished difference Result 3030 states and 11939 transitions. [2021-03-11 14:37:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:03,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:03,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:03,463 INFO L225 Difference]: With dead ends: 3030 [2021-03-11 14:37:03,463 INFO L226 Difference]: Without dead ends: 2988 [2021-03-11 14:37:03,463 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 208.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-03-11 14:37:03,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1565. [2021-03-11 14:37:03,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.494884910485934) internal successors, (7030), 1564 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7030 transitions. [2021-03-11 14:37:03,512 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7030 transitions. Word has length 28 [2021-03-11 14:37:03,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:03,512 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7030 transitions. [2021-03-11 14:37:03,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7030 transitions. [2021-03-11 14:37:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:03,515 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:03,515 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:03,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-11 14:37:03,515 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:03,515 INFO L82 PathProgramCache]: Analyzing trace with hash 338356978, now seen corresponding path program 97 times [2021-03-11 14:37:03,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:03,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867405174] [2021-03-11 14:37:03,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:03,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:03,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:03,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:03,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:03,529 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:03,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:03,536 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:03,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:03,546 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:03,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:03,561 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:03,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:03,583 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:03,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:03,611 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:03,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:03,666 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:03,699 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:03,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:03,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:03,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867405174] [2021-03-11 14:37:03,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:03,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:03,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116808126] [2021-03-11 14:37:03,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:03,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:03,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:03,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:03,730 INFO L87 Difference]: Start difference. First operand 1565 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:03,841 INFO L93 Difference]: Finished difference Result 3034 states and 11987 transitions. [2021-03-11 14:37:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:03,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:03,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:03,847 INFO L225 Difference]: With dead ends: 3034 [2021-03-11 14:37:03,847 INFO L226 Difference]: Without dead ends: 3018 [2021-03-11 14:37:03,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2021-03-11 14:37:03,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 1590. [2021-03-11 14:37:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.4745122718691) internal successors, (7110), 1589 states have internal predecessors, (7110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7110 transitions. [2021-03-11 14:37:03,897 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7110 transitions. Word has length 28 [2021-03-11 14:37:03,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:03,897 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7110 transitions. [2021-03-11 14:37:03,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:03,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7110 transitions. [2021-03-11 14:37:03,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:03,900 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:03,900 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:03,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-11 14:37:03,900 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:03,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:03,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1083059476, now seen corresponding path program 98 times [2021-03-11 14:37:03,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:03,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624220731] [2021-03-11 14:37:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:03,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:03,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:03,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:03,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:03,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:03,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:03,927 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:03,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:03,940 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:03,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:03,959 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:03,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:03,982 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:04,005 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:04,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:04,050 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:04,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:04,084 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:04,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:04,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:04,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624220731] [2021-03-11 14:37:04,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:04,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:04,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536775449] [2021-03-11 14:37:04,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:04,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:04,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:04,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:04,116 INFO L87 Difference]: Start difference. First operand 1590 states and 7110 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:04,210 INFO L93 Difference]: Finished difference Result 3038 states and 11988 transitions. [2021-03-11 14:37:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:04,210 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:04,216 INFO L225 Difference]: With dead ends: 3038 [2021-03-11 14:37:04,216 INFO L226 Difference]: Without dead ends: 3011 [2021-03-11 14:37:04,216 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 214.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:04,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2021-03-11 14:37:04,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 1583. [2021-03-11 14:37:04,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.481668773704172) internal successors, (7090), 1582 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7090 transitions. [2021-03-11 14:37:04,265 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7090 transitions. Word has length 28 [2021-03-11 14:37:04,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:04,265 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7090 transitions. [2021-03-11 14:37:04,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:04,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7090 transitions. [2021-03-11 14:37:04,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:04,267 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:04,267 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:04,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-11 14:37:04,267 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:04,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:04,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1949297936, now seen corresponding path program 99 times [2021-03-11 14:37:04,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:04,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669421182] [2021-03-11 14:37:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:04,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:04,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:04,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:04,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:04,283 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:04,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:04,290 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:04,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:04,300 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:04,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:04,314 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:04,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:04,332 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:04,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:04,355 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:04,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:04,382 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:04,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:04,415 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:04,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:04,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669421182] [2021-03-11 14:37:04,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:04,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:04,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140642909] [2021-03-11 14:37:04,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:04,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:04,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:04,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:04,446 INFO L87 Difference]: Start difference. First operand 1583 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:04,579 INFO L93 Difference]: Finished difference Result 3031 states and 11975 transitions. [2021-03-11 14:37:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:04,580 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:04,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:04,585 INFO L225 Difference]: With dead ends: 3031 [2021-03-11 14:37:04,585 INFO L226 Difference]: Without dead ends: 3015 [2021-03-11 14:37:04,586 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:04,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-03-11 14:37:04,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 1589. [2021-03-11 14:37:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 4.471662468513854) internal successors, (7101), 1588 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 7101 transitions. [2021-03-11 14:37:04,635 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 7101 transitions. Word has length 28 [2021-03-11 14:37:04,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:04,635 INFO L480 AbstractCegarLoop]: Abstraction has 1589 states and 7101 transitions. [2021-03-11 14:37:04,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:04,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 7101 transitions. [2021-03-11 14:37:04,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:04,637 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:04,637 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:04,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-11 14:37:04,637 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:04,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:04,638 INFO L82 PathProgramCache]: Analyzing trace with hash -856264364, now seen corresponding path program 100 times [2021-03-11 14:37:04,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:04,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093407976] [2021-03-11 14:37:04,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:04,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:04,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:04,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:04,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:04,653 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:04,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:04,660 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:04,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:04,670 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:04,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:04,684 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:04,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:04,703 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:04,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:04,725 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:04,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:04,752 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:04,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:04,786 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:04,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:04,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:04,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093407976] [2021-03-11 14:37:04,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:04,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:04,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900848219] [2021-03-11 14:37:04,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:04,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:04,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:04,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:04,818 INFO L87 Difference]: Start difference. First operand 1589 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:04,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:04,960 INFO L93 Difference]: Finished difference Result 3033 states and 11973 transitions. [2021-03-11 14:37:04,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:04,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:04,965 INFO L225 Difference]: With dead ends: 3033 [2021-03-11 14:37:04,965 INFO L226 Difference]: Without dead ends: 3009 [2021-03-11 14:37:04,966 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2021-03-11 14:37:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 1583. [2021-03-11 14:37:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.477876106194691) internal successors, (7084), 1582 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7084 transitions. [2021-03-11 14:37:05,012 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7084 transitions. Word has length 28 [2021-03-11 14:37:05,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:05,012 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7084 transitions. [2021-03-11 14:37:05,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7084 transitions. [2021-03-11 14:37:05,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:05,014 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:05,014 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:05,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-11 14:37:05,014 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash 9974096, now seen corresponding path program 101 times [2021-03-11 14:37:05,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:05,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818960242] [2021-03-11 14:37:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:05,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:05,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:05,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:05,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:05,028 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:05,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:05,035 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:05,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:05,045 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:05,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:05,059 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:05,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:05,077 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:05,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:05,099 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:05,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:05,126 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:05,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:05,159 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:05,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:05,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818960242] [2021-03-11 14:37:05,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:05,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:05,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720678946] [2021-03-11 14:37:05,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:05,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:05,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:05,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:05,189 INFO L87 Difference]: Start difference. First operand 1583 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:05,285 INFO L93 Difference]: Finished difference Result 3043 states and 11992 transitions. [2021-03-11 14:37:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:05,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:05,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:05,290 INFO L225 Difference]: With dead ends: 3043 [2021-03-11 14:37:05,290 INFO L226 Difference]: Without dead ends: 3023 [2021-03-11 14:37:05,290 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 181.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2021-03-11 14:37:05,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1593. [2021-03-11 14:37:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 4.460427135678392) internal successors, (7101), 1592 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 7101 transitions. [2021-03-11 14:37:05,337 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 7101 transitions. Word has length 28 [2021-03-11 14:37:05,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:05,337 INFO L480 AbstractCegarLoop]: Abstraction has 1593 states and 7101 transitions. [2021-03-11 14:37:05,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 7101 transitions. [2021-03-11 14:37:05,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:05,339 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:05,339 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:05,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-11 14:37:05,339 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:05,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:05,340 INFO L82 PathProgramCache]: Analyzing trace with hash 754676594, now seen corresponding path program 102 times [2021-03-11 14:37:05,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:05,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996333498] [2021-03-11 14:37:05,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:05,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:05,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:05,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:05,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:05,354 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:05,364 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:05,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:05,374 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:05,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:05,388 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:05,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:05,406 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:05,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:05,427 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:05,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:05,454 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:05,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:05,487 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:05,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:05,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996333498] [2021-03-11 14:37:05,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:05,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:05,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057039046] [2021-03-11 14:37:05,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:05,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:05,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:05,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:05,517 INFO L87 Difference]: Start difference. First operand 1593 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:05,634 INFO L93 Difference]: Finished difference Result 3041 states and 11980 transitions. [2021-03-11 14:37:05,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:05,635 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:05,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:05,640 INFO L225 Difference]: With dead ends: 3041 [2021-03-11 14:37:05,640 INFO L226 Difference]: Without dead ends: 3005 [2021-03-11 14:37:05,640 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 207.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:05,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2021-03-11 14:37:05,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 1575. [2021-03-11 14:37:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.486022871664549) internal successors, (7061), 1574 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7061 transitions. [2021-03-11 14:37:05,686 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7061 transitions. Word has length 28 [2021-03-11 14:37:05,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:05,686 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7061 transitions. [2021-03-11 14:37:05,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:05,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7061 transitions. [2021-03-11 14:37:05,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:05,688 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:05,688 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:05,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-11 14:37:05,689 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:05,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:05,689 INFO L82 PathProgramCache]: Analyzing trace with hash 926102300, now seen corresponding path program 103 times [2021-03-11 14:37:05,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:05,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444333376] [2021-03-11 14:37:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:05,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:05,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:05,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:05,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:05,702 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:05,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:05,709 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:05,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:05,719 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:05,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:05,735 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:05,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:05,753 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:05,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:05,775 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:05,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:05,819 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:05,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:05,851 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:05,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:05,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444333376] [2021-03-11 14:37:05,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:05,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:05,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505307720] [2021-03-11 14:37:05,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:05,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:05,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:05,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:05,882 INFO L87 Difference]: Start difference. First operand 1575 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:06,015 INFO L93 Difference]: Finished difference Result 3030 states and 11971 transitions. [2021-03-11 14:37:06,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:06,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:06,020 INFO L225 Difference]: With dead ends: 3030 [2021-03-11 14:37:06,021 INFO L226 Difference]: Without dead ends: 3014 [2021-03-11 14:37:06,021 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:06,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2021-03-11 14:37:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 1589. [2021-03-11 14:37:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 4.471032745591939) internal successors, (7100), 1588 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 7100 transitions. [2021-03-11 14:37:06,067 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 7100 transitions. Word has length 28 [2021-03-11 14:37:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:06,067 INFO L480 AbstractCegarLoop]: Abstraction has 1589 states and 7100 transitions. [2021-03-11 14:37:06,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 7100 transitions. [2021-03-11 14:37:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:06,069 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:06,069 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:06,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-11 14:37:06,069 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:06,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1670804798, now seen corresponding path program 104 times [2021-03-11 14:37:06,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:06,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456834554] [2021-03-11 14:37:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:06,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:06,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:06,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:06,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:06,084 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:06,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:06,091 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:06,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:06,101 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:06,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:06,115 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:06,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:06,133 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:06,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:06,155 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:06,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:06,199 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:06,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:06,232 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:06,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:06,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456834554] [2021-03-11 14:37:06,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:06,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:06,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485639540] [2021-03-11 14:37:06,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:06,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:06,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:06,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:06,263 INFO L87 Difference]: Start difference. First operand 1589 states and 7100 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:06,388 INFO L93 Difference]: Finished difference Result 3034 states and 11972 transitions. [2021-03-11 14:37:06,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:06,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:06,394 INFO L225 Difference]: With dead ends: 3034 [2021-03-11 14:37:06,394 INFO L226 Difference]: Without dead ends: 3007 [2021-03-11 14:37:06,394 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 199.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:06,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2021-03-11 14:37:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 1582. [2021-03-11 14:37:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.478178368121442) internal successors, (7080), 1581 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7080 transitions. [2021-03-11 14:37:06,440 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7080 transitions. Word has length 28 [2021-03-11 14:37:06,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:06,440 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7080 transitions. [2021-03-11 14:37:06,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7080 transitions. [2021-03-11 14:37:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:06,442 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:06,443 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:06,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-11 14:37:06,443 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:06,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:06,443 INFO L82 PathProgramCache]: Analyzing trace with hash 2001813456, now seen corresponding path program 105 times [2021-03-11 14:37:06,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:06,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101702984] [2021-03-11 14:37:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:06,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:06,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:06,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:06,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:06,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:06,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:06,464 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:06,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:06,474 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:06,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:06,488 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:06,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:06,506 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:06,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:06,527 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:06,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:06,554 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:06,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:06,586 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:06,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:06,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101702984] [2021-03-11 14:37:06,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:06,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:06,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916167907] [2021-03-11 14:37:06,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:06,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:06,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:06,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:06,619 INFO L87 Difference]: Start difference. First operand 1582 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:06,753 INFO L93 Difference]: Finished difference Result 3026 states and 11957 transitions. [2021-03-11 14:37:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:06,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:06,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:06,759 INFO L225 Difference]: With dead ends: 3026 [2021-03-11 14:37:06,759 INFO L226 Difference]: Without dead ends: 3010 [2021-03-11 14:37:06,759 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2021-03-11 14:37:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 1588. [2021-03-11 14:37:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.46817895400126) internal successors, (7091), 1587 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7091 transitions. [2021-03-11 14:37:06,806 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7091 transitions. Word has length 28 [2021-03-11 14:37:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:06,806 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7091 transitions. [2021-03-11 14:37:06,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7091 transitions. [2021-03-11 14:37:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:06,808 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:06,808 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:06,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-11 14:37:06,808 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:06,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1375203650, now seen corresponding path program 106 times [2021-03-11 14:37:06,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:06,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792031540] [2021-03-11 14:37:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:06,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:06,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:06,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:06,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:06,824 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:06,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:06,831 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:06,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:06,841 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:06,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:06,855 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:06,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:06,873 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:06,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:06,895 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:06,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:06,922 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:06,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:06,956 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:06,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:06,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792031540] [2021-03-11 14:37:06,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:06,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:06,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095418508] [2021-03-11 14:37:06,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:06,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:06,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:06,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:06,987 INFO L87 Difference]: Start difference. First operand 1588 states and 7091 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:07,116 INFO L93 Difference]: Finished difference Result 3027 states and 11953 transitions. [2021-03-11 14:37:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:07,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:07,123 INFO L225 Difference]: With dead ends: 3027 [2021-03-11 14:37:07,123 INFO L226 Difference]: Without dead ends: 3004 [2021-03-11 14:37:07,123 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2021-03-11 14:37:07,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 1582. [2021-03-11 14:37:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.47438330170778) internal successors, (7074), 1581 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7074 transitions. [2021-03-11 14:37:07,170 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7074 transitions. Word has length 28 [2021-03-11 14:37:07,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:07,170 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7074 transitions. [2021-03-11 14:37:07,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7074 transitions. [2021-03-11 14:37:07,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:07,172 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:07,172 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:07,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-11 14:37:07,172 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:07,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:07,173 INFO L82 PathProgramCache]: Analyzing trace with hash 62489616, now seen corresponding path program 107 times [2021-03-11 14:37:07,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:07,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822299322] [2021-03-11 14:37:07,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:07,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:07,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:07,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:07,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:07,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:07,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:07,193 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:07,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:07,203 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:07,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:07,217 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:07,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:07,235 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:07,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:07,257 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:07,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:07,284 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:07,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:07,318 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:07,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:07,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822299322] [2021-03-11 14:37:07,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:07,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:07,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575357312] [2021-03-11 14:37:07,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:07,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:07,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:07,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:07,349 INFO L87 Difference]: Start difference. First operand 1582 states and 7074 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:07,443 INFO L93 Difference]: Finished difference Result 3036 states and 11970 transitions. [2021-03-11 14:37:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:07,443 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:07,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:07,448 INFO L225 Difference]: With dead ends: 3036 [2021-03-11 14:37:07,448 INFO L226 Difference]: Without dead ends: 3016 [2021-03-11 14:37:07,448 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 183.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:07,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2021-03-11 14:37:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1590. [2021-03-11 14:37:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.460667086217747) internal successors, (7088), 1589 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7088 transitions. [2021-03-11 14:37:07,495 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7088 transitions. Word has length 28 [2021-03-11 14:37:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:07,495 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7088 transitions. [2021-03-11 14:37:07,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7088 transitions. [2021-03-11 14:37:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:07,497 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:07,497 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:07,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-11 14:37:07,497 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:07,498 INFO L82 PathProgramCache]: Analyzing trace with hash 235737308, now seen corresponding path program 108 times [2021-03-11 14:37:07,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:07,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780780047] [2021-03-11 14:37:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:07,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:07,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:07,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:07,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:07,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:07,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:07,518 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:07,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:07,528 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:07,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:07,542 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:07,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:07,560 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:07,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:07,582 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:07,610 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:07,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:07,642 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:07,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:07,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:07,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780780047] [2021-03-11 14:37:07,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:07,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:07,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297023764] [2021-03-11 14:37:07,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:07,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:07,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:07,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:07,690 INFO L87 Difference]: Start difference. First operand 1590 states and 7088 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:07,854 INFO L93 Difference]: Finished difference Result 3033 states and 11957 transitions. [2021-03-11 14:37:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:07,854 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:07,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:07,862 INFO L225 Difference]: With dead ends: 3033 [2021-03-11 14:37:07,862 INFO L226 Difference]: Without dead ends: 3001 [2021-03-11 14:37:07,862 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 225.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:07,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2021-03-11 14:37:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 1575. [2021-03-11 14:37:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.481575603557815) internal successors, (7054), 1574 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7054 transitions. [2021-03-11 14:37:07,915 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7054 transitions. Word has length 28 [2021-03-11 14:37:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:07,915 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7054 transitions. [2021-03-11 14:37:07,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7054 transitions. [2021-03-11 14:37:07,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:07,917 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:07,917 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:07,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-11 14:37:07,918 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:07,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:07,918 INFO L82 PathProgramCache]: Analyzing trace with hash 936605404, now seen corresponding path program 109 times [2021-03-11 14:37:07,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:07,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751000149] [2021-03-11 14:37:07,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:07,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:07,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:07,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:07,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:07,933 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:07,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:07,940 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:07,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:07,950 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:07,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:07,965 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:07,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:07,983 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:07,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:08,006 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:08,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:08,032 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:08,065 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:08,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:08,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751000149] [2021-03-11 14:37:08,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:08,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:08,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005640621] [2021-03-11 14:37:08,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:08,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:08,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:08,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:08,095 INFO L87 Difference]: Start difference. First operand 1575 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:08,231 INFO L93 Difference]: Finished difference Result 3022 states and 11949 transitions. [2021-03-11 14:37:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:08,231 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:08,237 INFO L225 Difference]: With dead ends: 3022 [2021-03-11 14:37:08,237 INFO L226 Difference]: Without dead ends: 3006 [2021-03-11 14:37:08,237 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 206.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:08,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2021-03-11 14:37:08,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1587. [2021-03-11 14:37:08,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.469104665825977) internal successors, (7088), 1586 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7088 transitions. [2021-03-11 14:37:08,283 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7088 transitions. Word has length 28 [2021-03-11 14:37:08,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:08,283 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7088 transitions. [2021-03-11 14:37:08,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7088 transitions. [2021-03-11 14:37:08,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:08,286 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:08,286 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:08,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-11 14:37:08,286 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:08,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:08,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1868956896, now seen corresponding path program 110 times [2021-03-11 14:37:08,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:08,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302228863] [2021-03-11 14:37:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:08,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:08,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:08,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:08,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:08,304 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:08,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:08,311 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:08,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:08,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:08,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:08,335 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:08,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:08,353 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:08,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:08,375 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:08,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:08,402 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:08,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:08,434 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:08,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:08,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302228863] [2021-03-11 14:37:08,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:08,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:08,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871524467] [2021-03-11 14:37:08,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:08,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:08,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:08,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:08,465 INFO L87 Difference]: Start difference. First operand 1587 states and 7088 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:08,600 INFO L93 Difference]: Finished difference Result 3024 states and 11947 transitions. [2021-03-11 14:37:08,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:08,600 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:08,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:08,605 INFO L225 Difference]: With dead ends: 3024 [2021-03-11 14:37:08,605 INFO L226 Difference]: Without dead ends: 3000 [2021-03-11 14:37:08,605 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 209.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:08,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2021-03-11 14:37:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1581. [2021-03-11 14:37:08,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.475316455696203) internal successors, (7071), 1580 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7071 transitions. [2021-03-11 14:37:08,651 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7071 transitions. Word has length 28 [2021-03-11 14:37:08,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:08,652 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7071 transitions. [2021-03-11 14:37:08,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7071 transitions. [2021-03-11 14:37:08,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:08,654 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:08,654 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:08,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-11 14:37:08,654 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:08,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:08,654 INFO L82 PathProgramCache]: Analyzing trace with hash 401375602, now seen corresponding path program 111 times [2021-03-11 14:37:08,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:08,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406996789] [2021-03-11 14:37:08,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:08,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:08,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:08,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:08,676 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:08,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:08,687 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:08,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:08,701 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:08,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:08,719 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:08,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:08,741 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:08,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:08,767 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:08,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:08,800 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:08,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:08,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406996789] [2021-03-11 14:37:08,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:08,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:08,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284095426] [2021-03-11 14:37:08,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:08,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:08,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:08,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:08,831 INFO L87 Difference]: Start difference. First operand 1581 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:08,947 INFO L93 Difference]: Finished difference Result 3021 states and 11941 transitions. [2021-03-11 14:37:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:08,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:08,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:08,953 INFO L225 Difference]: With dead ends: 3021 [2021-03-11 14:37:08,953 INFO L226 Difference]: Without dead ends: 3005 [2021-03-11 14:37:08,953 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2021-03-11 14:37:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 1587. [2021-03-11 14:37:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.465321563682219) internal successors, (7082), 1586 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7082 transitions. [2021-03-11 14:37:08,999 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7082 transitions. Word has length 28 [2021-03-11 14:37:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:08,999 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7082 transitions. [2021-03-11 14:37:08,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7082 transitions. [2021-03-11 14:37:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:09,002 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:09,002 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:09,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-11 14:37:09,002 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1319325792, now seen corresponding path program 112 times [2021-03-11 14:37:09,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:09,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693892639] [2021-03-11 14:37:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:09,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:09,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:09,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:09,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:09,018 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:09,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:09,025 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:09,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:09,035 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:09,049 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:09,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:09,067 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:09,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:09,089 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:09,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:09,116 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:09,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:09,149 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:09,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:09,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693892639] [2021-03-11 14:37:09,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:09,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:09,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712592065] [2021-03-11 14:37:09,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:09,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:09,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:09,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:09,179 INFO L87 Difference]: Start difference. First operand 1587 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:09,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:09,298 INFO L93 Difference]: Finished difference Result 3022 states and 11937 transitions. [2021-03-11 14:37:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:09,298 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:09,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:09,304 INFO L225 Difference]: With dead ends: 3022 [2021-03-11 14:37:09,304 INFO L226 Difference]: Without dead ends: 2999 [2021-03-11 14:37:09,304 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-03-11 14:37:09,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 1581. [2021-03-11 14:37:09,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.4715189873417724) internal successors, (7065), 1580 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:09,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7065 transitions. [2021-03-11 14:37:09,350 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7065 transitions. Word has length 28 [2021-03-11 14:37:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:09,350 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7065 transitions. [2021-03-11 14:37:09,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7065 transitions. [2021-03-11 14:37:09,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:09,353 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:09,353 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:09,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-11 14:37:09,353 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:09,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:09,353 INFO L82 PathProgramCache]: Analyzing trace with hash 817695218, now seen corresponding path program 113 times [2021-03-11 14:37:09,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:09,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483733166] [2021-03-11 14:37:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:09,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:09,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:09,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:09,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:09,367 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:09,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:09,374 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:09,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:09,384 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:09,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:09,398 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:09,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:09,416 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:09,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:09,438 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:09,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:09,466 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:09,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:09,499 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:09,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:09,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:09,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483733166] [2021-03-11 14:37:09,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:09,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:09,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968921834] [2021-03-11 14:37:09,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:09,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:09,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:09,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:09,529 INFO L87 Difference]: Start difference. First operand 1581 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:09,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:09,664 INFO L93 Difference]: Finished difference Result 3026 states and 11946 transitions. [2021-03-11 14:37:09,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:09,664 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:09,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:09,670 INFO L225 Difference]: With dead ends: 3026 [2021-03-11 14:37:09,670 INFO L226 Difference]: Without dead ends: 3008 [2021-03-11 14:37:09,670 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:09,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-03-11 14:37:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1588. [2021-03-11 14:37:09,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.459987397605545) internal successors, (7078), 1587 states have internal predecessors, (7078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:09,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7078 transitions. [2021-03-11 14:37:09,721 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7078 transitions. Word has length 28 [2021-03-11 14:37:09,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:09,721 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7078 transitions. [2021-03-11 14:37:09,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:09,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7078 transitions. [2021-03-11 14:37:09,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:09,724 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:09,724 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:09,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-11 14:37:09,724 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:09,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:09,724 INFO L82 PathProgramCache]: Analyzing trace with hash 246240412, now seen corresponding path program 114 times [2021-03-11 14:37:09,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:09,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472703374] [2021-03-11 14:37:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:09,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:09,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:09,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:09,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:09,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:09,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:09,748 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:09,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:09,758 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:09,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:09,772 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:09,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:09,791 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:09,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:09,813 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:09,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:09,840 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:09,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:09,873 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:09,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:09,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472703374] [2021-03-11 14:37:09,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:09,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:09,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240762544] [2021-03-11 14:37:09,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:09,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:09,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:09,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:09,904 INFO L87 Difference]: Start difference. First operand 1588 states and 7078 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:10,047 INFO L93 Difference]: Finished difference Result 3025 states and 11937 transitions. [2021-03-11 14:37:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:10,048 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:10,053 INFO L225 Difference]: With dead ends: 3025 [2021-03-11 14:37:10,053 INFO L226 Difference]: Without dead ends: 2995 [2021-03-11 14:37:10,054 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 207.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2021-03-11 14:37:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1575. [2021-03-11 14:37:10,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.477763659466328) internal successors, (7048), 1574 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7048 transitions. [2021-03-11 14:37:10,100 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7048 transitions. Word has length 28 [2021-03-11 14:37:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:10,101 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7048 transitions. [2021-03-11 14:37:10,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7048 transitions. [2021-03-11 14:37:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:10,103 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:10,103 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:10,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-11 14:37:10,103 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:10,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:10,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1691811006, now seen corresponding path program 115 times [2021-03-11 14:37:10,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:10,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957119232] [2021-03-11 14:37:10,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:10,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:10,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:10,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:10,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:10,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:10,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:10,129 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:10,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:10,139 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:10,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:10,154 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:10,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:10,173 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:10,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:10,195 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:10,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:10,224 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:10,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:10,257 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:10,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:10,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957119232] [2021-03-11 14:37:10,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:10,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:10,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918974647] [2021-03-11 14:37:10,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:10,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:10,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:10,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:10,287 INFO L87 Difference]: Start difference. First operand 1575 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:10,421 INFO L93 Difference]: Finished difference Result 3048 states and 11997 transitions. [2021-03-11 14:37:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:10,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:10,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:10,426 INFO L225 Difference]: With dead ends: 3048 [2021-03-11 14:37:10,426 INFO L226 Difference]: Without dead ends: 3028 [2021-03-11 14:37:10,427 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 202.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:10,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2021-03-11 14:37:10,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 1595. [2021-03-11 14:37:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1594 states have (on average 4.452948557089084) internal successors, (7098), 1594 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 7098 transitions. [2021-03-11 14:37:10,473 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 7098 transitions. Word has length 28 [2021-03-11 14:37:10,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:10,473 INFO L480 AbstractCegarLoop]: Abstraction has 1595 states and 7098 transitions. [2021-03-11 14:37:10,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 7098 transitions. [2021-03-11 14:37:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:10,475 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:10,475 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:10,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-11 14:37:10,475 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:10,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:10,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1858453792, now seen corresponding path program 116 times [2021-03-11 14:37:10,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:10,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885257505] [2021-03-11 14:37:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:10,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:10,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:10,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:10,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:10,490 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:10,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:10,497 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:10,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:10,507 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:10,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:10,521 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:10,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:10,539 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:10,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:10,562 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:10,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:10,590 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:10,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:10,623 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:10,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885257505] [2021-03-11 14:37:10,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:10,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:10,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375764509] [2021-03-11 14:37:10,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:10,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:10,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:10,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:10,654 INFO L87 Difference]: Start difference. First operand 1595 states and 7098 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:10,790 INFO L93 Difference]: Finished difference Result 3046 states and 11985 transitions. [2021-03-11 14:37:10,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:10,790 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:10,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:10,795 INFO L225 Difference]: With dead ends: 3046 [2021-03-11 14:37:10,795 INFO L226 Difference]: Without dead ends: 3018 [2021-03-11 14:37:10,796 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2021-03-11 14:37:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 1585. [2021-03-11 14:37:10,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.4646464646464645) internal successors, (7072), 1584 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7072 transitions. [2021-03-11 14:37:10,842 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7072 transitions. Word has length 28 [2021-03-11 14:37:10,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:10,842 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7072 transitions. [2021-03-11 14:37:10,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7072 transitions. [2021-03-11 14:37:10,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:10,844 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:10,844 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:10,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-11 14:37:10,844 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:10,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1156581204, now seen corresponding path program 117 times [2021-03-11 14:37:10,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:10,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932558978] [2021-03-11 14:37:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:10,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:10,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:10,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:10,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:10,863 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:10,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:10,871 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:10,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:10,882 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:10,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:10,899 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:10,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:10,923 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:10,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:10,953 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:10,982 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:10,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:11,016 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:11,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:11,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932558978] [2021-03-11 14:37:11,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:11,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:11,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186034036] [2021-03-11 14:37:11,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:11,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:11,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:11,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:11,048 INFO L87 Difference]: Start difference. First operand 1585 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:11,167 INFO L93 Difference]: Finished difference Result 3045 states and 11982 transitions. [2021-03-11 14:37:11,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:11,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:11,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:11,172 INFO L225 Difference]: With dead ends: 3045 [2021-03-11 14:37:11,172 INFO L226 Difference]: Without dead ends: 3025 [2021-03-11 14:37:11,173 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 204.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:11,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2021-03-11 14:37:11,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 1593. [2021-03-11 14:37:11,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 4.451005025125628) internal successors, (7086), 1592 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 7086 transitions. [2021-03-11 14:37:11,219 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 7086 transitions. Word has length 28 [2021-03-11 14:37:11,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:11,219 INFO L480 AbstractCegarLoop]: Abstraction has 1593 states and 7086 transitions. [2021-03-11 14:37:11,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 7086 transitions. [2021-03-11 14:37:11,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:11,221 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:11,222 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:11,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-11 14:37:11,222 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:11,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1329828896, now seen corresponding path program 118 times [2021-03-11 14:37:11,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:11,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491790277] [2021-03-11 14:37:11,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:11,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:11,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:11,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:11,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:11,236 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:11,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:11,243 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:11,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:11,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:11,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:11,268 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:11,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:11,287 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:11,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:11,310 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:11,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:11,337 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:11,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:11,369 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:11,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:11,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491790277] [2021-03-11 14:37:11,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:11,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:11,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819945504] [2021-03-11 14:37:11,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:11,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:11,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:11,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:11,401 INFO L87 Difference]: Start difference. First operand 1593 states and 7086 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:11,543 INFO L93 Difference]: Finished difference Result 3042 states and 11969 transitions. [2021-03-11 14:37:11,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:11,543 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:11,548 INFO L225 Difference]: With dead ends: 3042 [2021-03-11 14:37:11,549 INFO L226 Difference]: Without dead ends: 3017 [2021-03-11 14:37:11,549 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 208.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:11,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2021-03-11 14:37:11,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 1585. [2021-03-11 14:37:11,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.459595959595959) internal successors, (7064), 1584 states have internal predecessors, (7064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7064 transitions. [2021-03-11 14:37:11,595 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7064 transitions. Word has length 28 [2021-03-11 14:37:11,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:11,595 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7064 transitions. [2021-03-11 14:37:11,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7064 transitions. [2021-03-11 14:37:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:11,597 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:11,597 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:11,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-11 14:37:11,598 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:11,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:11,598 INFO L82 PathProgramCache]: Analyzing trace with hash -782742636, now seen corresponding path program 119 times [2021-03-11 14:37:11,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:11,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602624694] [2021-03-11 14:37:11,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:11,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:11,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:11,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:11,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:11,613 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:11,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:11,620 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:11,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:11,630 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:11,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:11,645 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:11,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:11,663 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:11,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:11,686 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:11,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:11,713 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:11,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:11,747 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:11,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:11,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602624694] [2021-03-11 14:37:11,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:11,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:11,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362471057] [2021-03-11 14:37:11,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:11,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:11,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:11,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:11,778 INFO L87 Difference]: Start difference. First operand 1585 states and 7064 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:11,917 INFO L93 Difference]: Finished difference Result 3040 states and 11966 transitions. [2021-03-11 14:37:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:11,917 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:11,923 INFO L225 Difference]: With dead ends: 3040 [2021-03-11 14:37:11,923 INFO L226 Difference]: Without dead ends: 3022 [2021-03-11 14:37:11,923 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2021-03-11 14:37:11,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 1592. [2021-03-11 14:37:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1591 states have (on average 4.448145820238843) internal successors, (7077), 1591 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 7077 transitions. [2021-03-11 14:37:11,969 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 7077 transitions. Word has length 28 [2021-03-11 14:37:11,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:11,969 INFO L480 AbstractCegarLoop]: Abstraction has 1592 states and 7077 transitions. [2021-03-11 14:37:11,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:11,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 7077 transitions. [2021-03-11 14:37:11,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:11,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:11,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:11,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-11 14:37:11,972 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:11,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:11,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1354197442, now seen corresponding path program 120 times [2021-03-11 14:37:11,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:11,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508578773] [2021-03-11 14:37:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:11,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:11,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:11,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:11,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:11,990 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:11,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:11,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:11,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:12,008 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:37:12,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:37:12,022 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:37:12,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:37:12,041 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:37:12,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:37:12,064 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:12,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:12,101 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:12,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:12,134 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:12,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:12,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508578773] [2021-03-11 14:37:12,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:12,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:12,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629220476] [2021-03-11 14:37:12,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:12,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:12,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:12,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:12,166 INFO L87 Difference]: Start difference. First operand 1592 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:12,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:12,334 INFO L93 Difference]: Finished difference Result 3039 states and 11957 transitions. [2021-03-11 14:37:12,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:12,334 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:12,340 INFO L225 Difference]: With dead ends: 3039 [2021-03-11 14:37:12,340 INFO L226 Difference]: Without dead ends: 2985 [2021-03-11 14:37:12,340 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2021-03-11 14:37:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1555. [2021-03-11 14:37:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 4.506435006435006) internal successors, (7003), 1554 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 7003 transitions. [2021-03-11 14:37:12,387 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 7003 transitions. Word has length 28 [2021-03-11 14:37:12,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:12,387 INFO L480 AbstractCegarLoop]: Abstraction has 1555 states and 7003 transitions. [2021-03-11 14:37:12,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 7003 transitions. [2021-03-11 14:37:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:12,389 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:12,389 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:12,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-11 14:37:12,389 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:12,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1151658060, now seen corresponding path program 121 times [2021-03-11 14:37:12,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:12,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102340719] [2021-03-11 14:37:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:12,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:12,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:12,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:12,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:12,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:12,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:12,412 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:12,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:12,422 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:12,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:12,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:12,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:12,454 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:12,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:12,490 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:12,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:12,518 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:12,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:12,550 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:12,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:12,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:12,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102340719] [2021-03-11 14:37:12,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:12,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:12,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077713956] [2021-03-11 14:37:12,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:12,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:12,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:12,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:12,582 INFO L87 Difference]: Start difference. First operand 1555 states and 7003 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:12,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:12,747 INFO L93 Difference]: Finished difference Result 2966 states and 11803 transitions. [2021-03-11 14:37:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:12,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:12,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:12,753 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:37:12,753 INFO L226 Difference]: Without dead ends: 2951 [2021-03-11 14:37:12,753 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 221.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-03-11 14:37:12,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1579. [2021-03-11 14:37:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.497465145754119) internal successors, (7097), 1578 states have internal predecessors, (7097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:12,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7097 transitions. [2021-03-11 14:37:12,800 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7097 transitions. Word has length 28 [2021-03-11 14:37:12,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:12,800 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7097 transitions. [2021-03-11 14:37:12,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:12,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7097 transitions. [2021-03-11 14:37:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:12,803 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:12,803 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:12,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-11 14:37:12,803 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:12,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1896360558, now seen corresponding path program 122 times [2021-03-11 14:37:12,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:12,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418180786] [2021-03-11 14:37:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:12,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:12,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:12,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:12,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:12,849 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:12,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:12,858 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:12,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:12,870 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:12,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:12,887 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:12,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:12,909 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:12,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:12,949 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:12,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:12,975 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:13,007 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:13,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:13,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418180786] [2021-03-11 14:37:13,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:13,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:13,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790143985] [2021-03-11 14:37:13,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:13,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:13,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:13,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:13,041 INFO L87 Difference]: Start difference. First operand 1579 states and 7097 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:13,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:13,215 INFO L93 Difference]: Finished difference Result 2967 states and 11800 transitions. [2021-03-11 14:37:13,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:13,215 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:13,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:13,221 INFO L225 Difference]: With dead ends: 2967 [2021-03-11 14:37:13,221 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:37:13,221 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:37:13,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1574. [2021-03-11 14:37:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.502860775588048) internal successors, (7083), 1573 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7083 transitions. [2021-03-11 14:37:13,267 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7083 transitions. Word has length 28 [2021-03-11 14:37:13,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:13,267 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7083 transitions. [2021-03-11 14:37:13,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:13,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7083 transitions. [2021-03-11 14:37:13,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:13,269 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:13,269 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:13,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-11 14:37:13,270 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:13,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1532368278, now seen corresponding path program 123 times [2021-03-11 14:37:13,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:13,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759070399] [2021-03-11 14:37:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:13,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:13,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:13,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:13,296 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:13,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:13,307 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:13,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:13,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:13,345 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:13,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:13,391 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:13,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:13,434 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:13,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:13,466 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:13,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:13,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759070399] [2021-03-11 14:37:13,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:13,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:13,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827104757] [2021-03-11 14:37:13,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:13,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:13,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:13,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:13,496 INFO L87 Difference]: Start difference. First operand 1574 states and 7083 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:13,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:13,658 INFO L93 Difference]: Finished difference Result 2971 states and 11807 transitions. [2021-03-11 14:37:13,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:13,659 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:13,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:13,664 INFO L225 Difference]: With dead ends: 2971 [2021-03-11 14:37:13,664 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:37:13,664 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:13,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:37:13,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1580. [2021-03-11 14:37:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.492716909436352) internal successors, (7094), 1579 states have internal predecessors, (7094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7094 transitions. [2021-03-11 14:37:13,710 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7094 transitions. Word has length 28 [2021-03-11 14:37:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:13,710 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7094 transitions. [2021-03-11 14:37:13,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7094 transitions. [2021-03-11 14:37:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:13,712 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:13,712 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:13,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-11 14:37:13,713 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:13,713 INFO L82 PathProgramCache]: Analyzing trace with hash -42963282, now seen corresponding path program 124 times [2021-03-11 14:37:13,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:13,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161379656] [2021-03-11 14:37:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:13,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:13,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:13,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:13,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:13,733 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:13,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:13,740 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:13,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:13,751 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:13,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:13,766 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:13,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:13,783 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:13,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:13,820 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:13,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:13,862 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:13,895 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:13,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161379656] [2021-03-11 14:37:13,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:13,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:13,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476547768] [2021-03-11 14:37:13,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:13,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:13,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:13,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:13,925 INFO L87 Difference]: Start difference. First operand 1580 states and 7094 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:14,067 INFO L93 Difference]: Finished difference Result 2976 states and 11811 transitions. [2021-03-11 14:37:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:14,068 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:14,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:14,073 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:37:14,073 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:37:14,073 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:37:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1574. [2021-03-11 14:37:14,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.499046408137318) internal successors, (7077), 1573 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7077 transitions. [2021-03-11 14:37:14,119 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7077 transitions. Word has length 28 [2021-03-11 14:37:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:14,119 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7077 transitions. [2021-03-11 14:37:14,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7077 transitions. [2021-03-11 14:37:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:14,122 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:14,122 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:14,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-11 14:37:14,122 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:14,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:14,122 INFO L82 PathProgramCache]: Analyzing trace with hash 823275178, now seen corresponding path program 125 times [2021-03-11 14:37:14,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:14,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988797112] [2021-03-11 14:37:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:14,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:14,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:14,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:14,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:14,136 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:14,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:14,142 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:14,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:14,152 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:14,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:14,165 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:14,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:14,183 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:14,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:14,219 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:14,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:14,263 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:14,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:14,295 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:14,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:14,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988797112] [2021-03-11 14:37:14,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:14,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:14,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560317103] [2021-03-11 14:37:14,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:14,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:14,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:14,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:14,325 INFO L87 Difference]: Start difference. First operand 1574 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:14,469 INFO L93 Difference]: Finished difference Result 2974 states and 11808 transitions. [2021-03-11 14:37:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:14,474 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:37:14,475 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:37:14,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 232.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:37:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1581. [2021-03-11 14:37:14,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.487341772151899) internal successors, (7090), 1580 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7090 transitions. [2021-03-11 14:37:14,521 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7090 transitions. Word has length 28 [2021-03-11 14:37:14,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:14,521 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7090 transitions. [2021-03-11 14:37:14,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7090 transitions. [2021-03-11 14:37:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:14,523 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:14,523 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:14,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-11 14:37:14,523 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:14,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:14,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1567977676, now seen corresponding path program 126 times [2021-03-11 14:37:14,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:14,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515392781] [2021-03-11 14:37:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:14,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:14,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:14,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:14,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:14,537 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:14,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:14,544 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:14,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:14,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:14,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:14,567 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:14,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:14,586 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:14,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:14,623 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:14,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:14,667 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:14,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:14,700 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:14,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:14,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515392781] [2021-03-11 14:37:14,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:14,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:14,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194575990] [2021-03-11 14:37:14,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:14,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:14,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:14,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:14,730 INFO L87 Difference]: Start difference. First operand 1581 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:14,847 INFO L93 Difference]: Finished difference Result 2978 states and 11809 transitions. [2021-03-11 14:37:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:14,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:14,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:14,853 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:37:14,853 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:37:14,853 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:37:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1568. [2021-03-11 14:37:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.505424377791959) internal successors, (7060), 1567 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7060 transitions. [2021-03-11 14:37:14,899 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7060 transitions. Word has length 28 [2021-03-11 14:37:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:14,899 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7060 transitions. [2021-03-11 14:37:14,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7060 transitions. [2021-03-11 14:37:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:14,901 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:14,901 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:14,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-11 14:37:14,901 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:14,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1871670534, now seen corresponding path program 127 times [2021-03-11 14:37:14,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:14,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084260776] [2021-03-11 14:37:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:14,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:14,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:14,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:14,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:14,915 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:14,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:14,922 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:14,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:14,931 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:14,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:14,945 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:14,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:14,962 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:14,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:14,983 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:14,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:15,010 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:15,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:15,042 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:15,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:15,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084260776] [2021-03-11 14:37:15,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:15,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:15,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254022279] [2021-03-11 14:37:15,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:15,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:15,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:15,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:15,073 INFO L87 Difference]: Start difference. First operand 1568 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:15,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:15,203 INFO L93 Difference]: Finished difference Result 2961 states and 11787 transitions. [2021-03-11 14:37:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:15,204 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:15,209 INFO L225 Difference]: With dead ends: 2961 [2021-03-11 14:37:15,209 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:37:15,209 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 201.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:37:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1578. [2021-03-11 14:37:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.494610019023463) internal successors, (7088), 1577 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7088 transitions. [2021-03-11 14:37:15,255 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7088 transitions. Word has length 28 [2021-03-11 14:37:15,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:15,256 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7088 transitions. [2021-03-11 14:37:15,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:15,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7088 transitions. [2021-03-11 14:37:15,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:15,258 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:15,258 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:15,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-11 14:37:15,258 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:15,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:15,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1678594264, now seen corresponding path program 128 times [2021-03-11 14:37:15,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:15,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926306865] [2021-03-11 14:37:15,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:15,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:15,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:15,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:15,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:15,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:15,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:15,278 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:15,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:15,293 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:15,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:15,314 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:15,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:15,331 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:15,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:15,353 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:15,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:15,379 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:15,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:15,412 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:15,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:15,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926306865] [2021-03-11 14:37:15,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:15,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:15,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279179511] [2021-03-11 14:37:15,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:15,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:15,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:15,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:15,442 INFO L87 Difference]: Start difference. First operand 1578 states and 7088 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:15,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:15,592 INFO L93 Difference]: Finished difference Result 2962 states and 11784 transitions. [2021-03-11 14:37:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:15,593 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:15,598 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:37:15,598 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:37:15,598 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:37:15,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1573. [2021-03-11 14:37:15,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.5) internal successors, (7074), 1572 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:15,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7074 transitions. [2021-03-11 14:37:15,644 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7074 transitions. Word has length 28 [2021-03-11 14:37:15,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:15,644 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7074 transitions. [2021-03-11 14:37:15,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:15,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7074 transitions. [2021-03-11 14:37:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:15,646 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:15,646 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:15,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-11 14:37:15,646 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:15,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:15,646 INFO L82 PathProgramCache]: Analyzing trace with hash 798585154, now seen corresponding path program 129 times [2021-03-11 14:37:15,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:15,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289568228] [2021-03-11 14:37:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:15,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:15,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:15,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:15,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:15,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:15,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:15,667 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:15,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:15,677 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:15,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:15,690 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:15,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:15,708 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:15,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:15,729 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:15,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:15,774 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:15,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:15,807 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:15,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:15,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289568228] [2021-03-11 14:37:15,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:15,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:15,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670823995] [2021-03-11 14:37:15,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:15,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:15,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:15,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:15,837 INFO L87 Difference]: Start difference. First operand 1573 states and 7074 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:16,001 INFO L93 Difference]: Finished difference Result 2963 states and 11786 transitions. [2021-03-11 14:37:16,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:16,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:16,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:16,007 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:37:16,007 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:37:16,007 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:37:16,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1578. [2021-03-11 14:37:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.49143944197844) internal successors, (7083), 1577 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7083 transitions. [2021-03-11 14:37:16,054 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7083 transitions. Word has length 28 [2021-03-11 14:37:16,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:16,054 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7083 transitions. [2021-03-11 14:37:16,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7083 transitions. [2021-03-11 14:37:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:16,056 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:16,056 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:16,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-11 14:37:16,056 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:16,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:16,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1262274648, now seen corresponding path program 130 times [2021-03-11 14:37:16,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:16,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181253789] [2021-03-11 14:37:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:16,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:16,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:16,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:16,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:16,073 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:16,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:16,079 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:16,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:16,090 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:16,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:16,103 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:16,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:16,120 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:16,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:16,142 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:16,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:16,188 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:16,221 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:16,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:16,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181253789] [2021-03-11 14:37:16,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:16,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:16,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884680855] [2021-03-11 14:37:16,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:16,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:16,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:16,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:16,252 INFO L87 Difference]: Start difference. First operand 1578 states and 7083 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:16,384 INFO L93 Difference]: Finished difference Result 2966 states and 11787 transitions. [2021-03-11 14:37:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:16,385 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:16,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:16,390 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:37:16,390 INFO L226 Difference]: Without dead ends: 2943 [2021-03-11 14:37:16,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-03-11 14:37:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1573. [2021-03-11 14:37:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.496819338422392) internal successors, (7069), 1572 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7069 transitions. [2021-03-11 14:37:16,438 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7069 transitions. Word has length 28 [2021-03-11 14:37:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:16,438 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7069 transitions. [2021-03-11 14:37:16,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7069 transitions. [2021-03-11 14:37:16,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:16,440 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:16,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:16,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-11 14:37:16,440 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:16,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:16,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1140738686, now seen corresponding path program 131 times [2021-03-11 14:37:16,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:16,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781325550] [2021-03-11 14:37:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:16,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:16,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:16,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:16,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:16,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:16,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:16,463 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:16,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:16,474 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:16,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:16,488 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:16,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:16,506 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:16,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:16,528 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:16,555 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:16,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:16,587 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:16,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:16,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781325550] [2021-03-11 14:37:16,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:16,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:16,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738072458] [2021-03-11 14:37:16,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:16,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:16,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:16,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:16,618 INFO L87 Difference]: Start difference. First operand 1573 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:16,749 INFO L93 Difference]: Finished difference Result 2966 states and 11788 transitions. [2021-03-11 14:37:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:16,750 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:16,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:16,755 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:37:16,755 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:37:16,755 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:16,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:37:16,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1579. [2021-03-11 14:37:16,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.486692015209125) internal successors, (7080), 1578 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7080 transitions. [2021-03-11 14:37:16,801 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7080 transitions. Word has length 28 [2021-03-11 14:37:16,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:16,801 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7080 transitions. [2021-03-11 14:37:16,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:16,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7080 transitions. [2021-03-11 14:37:16,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:16,803 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:16,803 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:16,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-11 14:37:16,803 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:16,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:16,803 INFO L82 PathProgramCache]: Analyzing trace with hash 348666310, now seen corresponding path program 132 times [2021-03-11 14:37:16,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:16,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858180773] [2021-03-11 14:37:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:16,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:16,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:16,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:16,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:16,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:16,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:16,825 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:16,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:16,835 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:16,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:16,848 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:16,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:16,865 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:16,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:16,892 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:16,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:16,919 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:16,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:16,955 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:16,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:16,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:16,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858180773] [2021-03-11 14:37:16,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:16,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:16,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240849570] [2021-03-11 14:37:16,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:16,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:16,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:16,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:16,986 INFO L87 Difference]: Start difference. First operand 1579 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:17,112 INFO L93 Difference]: Finished difference Result 2968 states and 11786 transitions. [2021-03-11 14:37:17,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:17,112 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:17,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:17,118 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:37:17,118 INFO L226 Difference]: Without dead ends: 2939 [2021-03-11 14:37:17,118 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 216.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-03-11 14:37:17,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1568. [2021-03-11 14:37:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.502233567326101) internal successors, (7055), 1567 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7055 transitions. [2021-03-11 14:37:17,164 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7055 transitions. Word has length 28 [2021-03-11 14:37:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:17,164 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7055 transitions. [2021-03-11 14:37:17,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7055 transitions. [2021-03-11 14:37:17,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:17,166 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:17,167 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:17,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-11 14:37:17,167 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:17,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1882173638, now seen corresponding path program 133 times [2021-03-11 14:37:17,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:17,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835140646] [2021-03-11 14:37:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:17,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:17,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:17,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:17,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:17,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:17,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:17,188 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:17,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:17,198 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:17,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:17,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:17,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:17,229 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:17,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:17,267 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:17,310 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:17,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:17,343 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:17,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:17,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835140646] [2021-03-11 14:37:17,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:17,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:17,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665421186] [2021-03-11 14:37:17,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:17,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:17,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:17,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:17,373 INFO L87 Difference]: Start difference. First operand 1568 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:17,486 INFO L93 Difference]: Finished difference Result 2977 states and 11814 transitions. [2021-03-11 14:37:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:17,486 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:17,492 INFO L225 Difference]: With dead ends: 2977 [2021-03-11 14:37:17,492 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:37:17,492 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:17,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:37:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1581. [2021-03-11 14:37:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.487341772151899) internal successors, (7090), 1580 states have internal predecessors, (7090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7090 transitions. [2021-03-11 14:37:17,538 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7090 transitions. Word has length 28 [2021-03-11 14:37:17,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:17,538 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7090 transitions. [2021-03-11 14:37:17,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7090 transitions. [2021-03-11 14:37:17,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:17,540 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:17,540 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:17,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-11 14:37:17,540 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:17,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:17,540 INFO L82 PathProgramCache]: Analyzing trace with hash -923388662, now seen corresponding path program 134 times [2021-03-11 14:37:17,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:17,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629325013] [2021-03-11 14:37:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:17,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:17,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:17,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:17,557 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:17,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:17,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:17,574 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:17,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:17,588 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:17,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:17,605 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:17,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:17,643 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:17,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:17,686 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:17,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:17,720 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:17,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:17,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629325013] [2021-03-11 14:37:17,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:17,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:17,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348594497] [2021-03-11 14:37:17,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:17,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:17,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:17,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:17,750 INFO L87 Difference]: Start difference. First operand 1581 states and 7090 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:17,840 INFO L93 Difference]: Finished difference Result 2982 states and 11818 transitions. [2021-03-11 14:37:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:17,846 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:37:17,846 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:37:17,846 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 214.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:17,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:37:17,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1575. [2021-03-11 14:37:17,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.493646759847522) internal successors, (7073), 1574 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7073 transitions. [2021-03-11 14:37:17,892 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7073 transitions. Word has length 28 [2021-03-11 14:37:17,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:17,892 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7073 transitions. [2021-03-11 14:37:17,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:17,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7073 transitions. [2021-03-11 14:37:17,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:17,894 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:17,894 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:17,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-11 14:37:17,894 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:17,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:17,894 INFO L82 PathProgramCache]: Analyzing trace with hash -801852700, now seen corresponding path program 135 times [2021-03-11 14:37:17,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:17,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360010454] [2021-03-11 14:37:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:17,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:17,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:17,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:17,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:17,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:17,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:17,915 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:17,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:17,925 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:17,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:17,938 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:17,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:17,956 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:17,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:17,994 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:17,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:18,039 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:18,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:18,072 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:18,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:18,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360010454] [2021-03-11 14:37:18,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:18,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:18,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736324294] [2021-03-11 14:37:18,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:18,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:18,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:18,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:18,104 INFO L87 Difference]: Start difference. First operand 1575 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:18,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:18,217 INFO L93 Difference]: Finished difference Result 2974 states and 11803 transitions. [2021-03-11 14:37:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:18,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:18,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:18,223 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:37:18,223 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:37:18,223 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 239.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:37:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1580. [2021-03-11 14:37:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.485117162761242) internal successors, (7082), 1579 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:18,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7082 transitions. [2021-03-11 14:37:18,270 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7082 transitions. Word has length 28 [2021-03-11 14:37:18,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:18,270 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7082 transitions. [2021-03-11 14:37:18,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:18,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7082 transitions. [2021-03-11 14:37:18,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:18,273 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:18,273 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:18,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-11 14:37:18,273 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:18,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:18,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1432254794, now seen corresponding path program 136 times [2021-03-11 14:37:18,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:18,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080540501] [2021-03-11 14:37:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:18,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:18,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:18,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:18,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:18,292 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:18,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:18,299 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:18,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:18,310 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:18,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:18,324 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:18,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:18,342 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:18,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:18,379 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:18,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:18,425 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:18,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:18,458 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:18,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:18,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080540501] [2021-03-11 14:37:18,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:18,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:18,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486629820] [2021-03-11 14:37:18,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:18,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:18,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:18,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:18,489 INFO L87 Difference]: Start difference. First operand 1580 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:18,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:18,607 INFO L93 Difference]: Finished difference Result 2977 states and 11804 transitions. [2021-03-11 14:37:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:18,608 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:18,613 INFO L225 Difference]: With dead ends: 2977 [2021-03-11 14:37:18,613 INFO L226 Difference]: Without dead ends: 2954 [2021-03-11 14:37:18,613 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 244.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:18,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-03-11 14:37:18,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1575. [2021-03-11 14:37:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.490470139771284) internal successors, (7068), 1574 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7068 transitions. [2021-03-11 14:37:18,659 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7068 transitions. Word has length 28 [2021-03-11 14:37:18,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:18,659 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7068 transitions. [2021-03-11 14:37:18,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:18,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7068 transitions. [2021-03-11 14:37:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:18,661 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:18,661 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:18,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-11 14:37:18,661 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:18,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:18,662 INFO L82 PathProgramCache]: Analyzing trace with hash -385533084, now seen corresponding path program 137 times [2021-03-11 14:37:18,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:18,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393620838] [2021-03-11 14:37:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:18,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:18,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:18,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:18,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:18,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:18,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:18,682 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:18,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:18,693 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:18,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:18,706 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:18,724 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:18,762 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:18,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:18,790 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:18,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:18,824 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:18,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:18,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393620838] [2021-03-11 14:37:18,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:18,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:18,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763548884] [2021-03-11 14:37:18,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:18,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:18,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:18,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:18,855 INFO L87 Difference]: Start difference. First operand 1575 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:18,946 INFO L93 Difference]: Finished difference Result 2989 states and 11828 transitions. [2021-03-11 14:37:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:18,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:18,952 INFO L225 Difference]: With dead ends: 2989 [2021-03-11 14:37:18,952 INFO L226 Difference]: Without dead ends: 2969 [2021-03-11 14:37:18,952 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 200.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:18,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-03-11 14:37:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1585. [2021-03-11 14:37:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.4728535353535355) internal successors, (7085), 1584 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7085 transitions. [2021-03-11 14:37:19,002 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7085 transitions. Word has length 28 [2021-03-11 14:37:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:19,003 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7085 transitions. [2021-03-11 14:37:19,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7085 transitions. [2021-03-11 14:37:19,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:19,006 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:19,006 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:19,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-11 14:37:19,006 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:19,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:19,006 INFO L82 PathProgramCache]: Analyzing trace with hash 359169414, now seen corresponding path program 138 times [2021-03-11 14:37:19,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:19,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829460689] [2021-03-11 14:37:19,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:19,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:19,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:19,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:19,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:19,024 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:19,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:19,031 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:19,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:19,042 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:19,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:19,055 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:19,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:19,073 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:19,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:19,111 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:19,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:19,139 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:19,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:19,172 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:19,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:19,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829460689] [2021-03-11 14:37:19,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:19,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:19,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225106321] [2021-03-11 14:37:19,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:19,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:19,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:19,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:19,202 INFO L87 Difference]: Start difference. First operand 1585 states and 7085 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:19,331 INFO L93 Difference]: Finished difference Result 2987 states and 11816 transitions. [2021-03-11 14:37:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:19,332 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:19,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:19,337 INFO L225 Difference]: With dead ends: 2987 [2021-03-11 14:37:19,337 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:37:19,337 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:19,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:37:19,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1568. [2021-03-11 14:37:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.497766432673899) internal successors, (7048), 1567 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7048 transitions. [2021-03-11 14:37:19,383 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7048 transitions. Word has length 28 [2021-03-11 14:37:19,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:19,383 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7048 transitions. [2021-03-11 14:37:19,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7048 transitions. [2021-03-11 14:37:19,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:19,385 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:19,385 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:19,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-11 14:37:19,385 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:19,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:19,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1657588056, now seen corresponding path program 139 times [2021-03-11 14:37:19,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:19,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592258783] [2021-03-11 14:37:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:19,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:19,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:19,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:19,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:19,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:19,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:19,414 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:19,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:19,424 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:19,437 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:19,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:19,468 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:19,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:19,491 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:19,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:19,536 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:19,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:19,571 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:19,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:19,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592258783] [2021-03-11 14:37:19,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:19,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:19,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336001135] [2021-03-11 14:37:19,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:19,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:19,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:19,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:19,602 INFO L87 Difference]: Start difference. First operand 1568 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:19,720 INFO L93 Difference]: Finished difference Result 2984 states and 11826 transitions. [2021-03-11 14:37:19,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:19,721 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:19,726 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:37:19,726 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:37:19,726 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:19,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:37:19,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1583. [2021-03-11 14:37:19,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.481036662452592) internal successors, (7089), 1582 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7089 transitions. [2021-03-11 14:37:19,773 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7089 transitions. Word has length 28 [2021-03-11 14:37:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:19,773 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7089 transitions. [2021-03-11 14:37:19,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7089 transitions. [2021-03-11 14:37:19,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:19,775 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:19,775 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:19,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-11 14:37:19,775 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:19,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:19,776 INFO L82 PathProgramCache]: Analyzing trace with hash -912885558, now seen corresponding path program 140 times [2021-03-11 14:37:19,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:19,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531377095] [2021-03-11 14:37:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:19,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:19,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:19,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:19,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:19,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:19,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:19,796 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:19,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:19,807 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:19,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:19,820 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:19,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:19,838 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:19,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:19,861 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:19,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:19,906 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:19,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:19,940 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:19,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:19,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531377095] [2021-03-11 14:37:19,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:19,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:19,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038360666] [2021-03-11 14:37:19,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:19,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:19,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:19,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:19,971 INFO L87 Difference]: Start difference. First operand 1583 states and 7089 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:20,061 INFO L93 Difference]: Finished difference Result 2988 states and 11827 transitions. [2021-03-11 14:37:20,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:20,061 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:20,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:20,066 INFO L225 Difference]: With dead ends: 2988 [2021-03-11 14:37:20,066 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:37:20,066 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 202.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:20,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:37:20,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1576. [2021-03-11 14:37:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.488253968253968) internal successors, (7069), 1575 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7069 transitions. [2021-03-11 14:37:20,112 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7069 transitions. Word has length 28 [2021-03-11 14:37:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:20,112 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7069 transitions. [2021-03-11 14:37:20,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7069 transitions. [2021-03-11 14:37:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:20,114 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:20,115 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:20,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-11 14:37:20,115 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:20,115 INFO L82 PathProgramCache]: Analyzing trace with hash -46647098, now seen corresponding path program 141 times [2021-03-11 14:37:20,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:20,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569191315] [2021-03-11 14:37:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:20,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:20,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:20,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:20,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:20,129 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:20,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:20,135 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:20,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:20,146 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:20,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:20,159 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:20,177 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:20,200 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:20,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:20,227 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:20,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:20,260 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:20,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:20,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569191315] [2021-03-11 14:37:20,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:20,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:20,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117767617] [2021-03-11 14:37:20,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:20,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:20,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:20,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:20,291 INFO L87 Difference]: Start difference. First operand 1576 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:20,409 INFO L93 Difference]: Finished difference Result 2981 states and 11814 transitions. [2021-03-11 14:37:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:20,415 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:37:20,415 INFO L226 Difference]: Without dead ends: 2965 [2021-03-11 14:37:20,415 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 207.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2021-03-11 14:37:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1582. [2021-03-11 14:37:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.478178368121442) internal successors, (7080), 1581 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7080 transitions. [2021-03-11 14:37:20,461 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7080 transitions. Word has length 28 [2021-03-11 14:37:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:20,461 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7080 transitions. [2021-03-11 14:37:20,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7080 transitions. [2021-03-11 14:37:20,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:20,463 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:20,463 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:20,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-11 14:37:20,464 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:20,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:20,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1442757898, now seen corresponding path program 142 times [2021-03-11 14:37:20,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:20,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234603182] [2021-03-11 14:37:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:20,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:20,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:20,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:20,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:20,477 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:20,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:20,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:20,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:20,495 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:20,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:20,508 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:20,526 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:20,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:20,549 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:20,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:20,576 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:20,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:20,609 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:20,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:20,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234603182] [2021-03-11 14:37:20,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:20,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:20,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887838482] [2021-03-11 14:37:20,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:20,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:20,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:20,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:20,640 INFO L87 Difference]: Start difference. First operand 1582 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:20,770 INFO L93 Difference]: Finished difference Result 2983 states and 11812 transitions. [2021-03-11 14:37:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:20,775 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:37:20,776 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:37:20,776 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:37:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1576. [2021-03-11 14:37:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.484444444444445) internal successors, (7063), 1575 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7063 transitions. [2021-03-11 14:37:20,822 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7063 transitions. Word has length 28 [2021-03-11 14:37:20,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:20,822 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7063 transitions. [2021-03-11 14:37:20,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7063 transitions. [2021-03-11 14:37:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:20,824 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:20,824 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:20,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-11 14:37:20,824 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:20,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1985970938, now seen corresponding path program 143 times [2021-03-11 14:37:20,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:20,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771770462] [2021-03-11 14:37:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:20,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:20,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:20,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:20,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:20,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:20,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:20,847 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:20,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:20,857 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:20,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:20,870 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:20,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:20,888 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:20,911 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:20,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:20,939 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:20,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:20,973 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:20,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:21,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771770462] [2021-03-11 14:37:21,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:21,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:21,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762498830] [2021-03-11 14:37:21,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:21,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:21,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:21,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:21,004 INFO L87 Difference]: Start difference. First operand 1576 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:21,099 INFO L93 Difference]: Finished difference Result 2993 states and 11831 transitions. [2021-03-11 14:37:21,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:21,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:21,105 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:37:21,105 INFO L226 Difference]: Without dead ends: 2973 [2021-03-11 14:37:21,105 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 186.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:21,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2021-03-11 14:37:21,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 1586. [2021-03-11 14:37:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.466876971608833) internal successors, (7080), 1585 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7080 transitions. [2021-03-11 14:37:21,151 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7080 transitions. Word has length 28 [2021-03-11 14:37:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:21,151 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7080 transitions. [2021-03-11 14:37:21,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7080 transitions. [2021-03-11 14:37:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:21,153 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:21,153 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:21,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-11 14:37:21,154 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:21,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:21,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1241268440, now seen corresponding path program 144 times [2021-03-11 14:37:21,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:21,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599281602] [2021-03-11 14:37:21,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:21,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:21,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:21,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:21,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:21,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:21,176 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:21,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:21,186 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:21,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:21,201 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:37:21,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:37:21,219 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:21,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:21,243 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:21,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:21,272 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:21,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:21,308 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:21,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:21,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599281602] [2021-03-11 14:37:21,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:21,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:21,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283285608] [2021-03-11 14:37:21,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:21,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:21,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:21,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:21,340 INFO L87 Difference]: Start difference. First operand 1586 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:21,465 INFO L93 Difference]: Finished difference Result 2991 states and 11819 transitions. [2021-03-11 14:37:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:21,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:21,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:21,471 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:37:21,471 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:37:21,471 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 218.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:21,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:37:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1561. [2021-03-11 14:37:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 4.505769230769231) internal successors, (7029), 1560 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 7029 transitions. [2021-03-11 14:37:21,520 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 7029 transitions. Word has length 28 [2021-03-11 14:37:21,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:21,520 INFO L480 AbstractCegarLoop]: Abstraction has 1561 states and 7029 transitions. [2021-03-11 14:37:21,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 7029 transitions. [2021-03-11 14:37:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:21,522 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:21,522 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:21,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-11 14:37:21,522 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:21,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:21,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1398945230, now seen corresponding path program 145 times [2021-03-11 14:37:21,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:21,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181743622] [2021-03-11 14:37:21,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:21,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:21,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:21,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:21,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:21,536 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:21,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:21,544 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:21,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:21,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:21,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:21,569 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:21,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:21,599 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:21,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:21,637 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:21,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:21,665 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:21,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:21,699 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:21,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:21,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181743622] [2021-03-11 14:37:21,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:21,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:21,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704583405] [2021-03-11 14:37:21,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:21,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:21,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:21,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:21,732 INFO L87 Difference]: Start difference. First operand 1561 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:21,853 INFO L93 Difference]: Finished difference Result 2946 states and 11739 transitions. [2021-03-11 14:37:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:21,853 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:21,859 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:37:21,859 INFO L226 Difference]: Without dead ends: 2931 [2021-03-11 14:37:21,859 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 239.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:21,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2021-03-11 14:37:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 1577. [2021-03-11 14:37:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.494289340101523) internal successors, (7083), 1576 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7083 transitions. [2021-03-11 14:37:21,908 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7083 transitions. Word has length 28 [2021-03-11 14:37:21,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:21,908 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7083 transitions. [2021-03-11 14:37:21,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:21,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7083 transitions. [2021-03-11 14:37:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:21,911 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:21,911 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:21,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-11 14:37:21,911 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:21,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:21,911 INFO L82 PathProgramCache]: Analyzing trace with hash -654242732, now seen corresponding path program 146 times [2021-03-11 14:37:21,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:21,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012001228] [2021-03-11 14:37:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:21,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:21,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:21,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:21,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:21,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:21,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:21,932 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:21,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:21,943 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:21,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:21,957 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:21,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:21,988 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:21,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:22,026 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:22,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:22,055 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:22,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:22,089 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:22,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:22,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:22,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012001228] [2021-03-11 14:37:22,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:22,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:22,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001729814] [2021-03-11 14:37:22,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:22,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:22,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:22,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:22,122 INFO L87 Difference]: Start difference. First operand 1577 states and 7083 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:22,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:22,244 INFO L93 Difference]: Finished difference Result 2947 states and 11736 transitions. [2021-03-11 14:37:22,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:22,250 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:37:22,250 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:37:22,250 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:37:22,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1572. [2021-03-11 14:37:22,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.499681731381286) internal successors, (7069), 1571 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7069 transitions. [2021-03-11 14:37:22,299 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7069 transitions. Word has length 28 [2021-03-11 14:37:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:22,299 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7069 transitions. [2021-03-11 14:37:22,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:22,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7069 transitions. [2021-03-11 14:37:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:22,301 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:22,302 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:22,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-11 14:37:22,302 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:22,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:22,302 INFO L82 PathProgramCache]: Analyzing trace with hash 211995728, now seen corresponding path program 147 times [2021-03-11 14:37:22,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:22,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737268247] [2021-03-11 14:37:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:22,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:22,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:22,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:22,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:22,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:22,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:22,323 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:22,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:22,334 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:22,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:22,349 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:22,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:22,379 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:22,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:22,417 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:22,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:22,461 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:22,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:22,496 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:22,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:22,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737268247] [2021-03-11 14:37:22,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:22,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:22,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216183858] [2021-03-11 14:37:22,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:22,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:22,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:22,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:22,528 INFO L87 Difference]: Start difference. First operand 1572 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:22,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:22,679 INFO L93 Difference]: Finished difference Result 2951 states and 11743 transitions. [2021-03-11 14:37:22,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:22,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:22,685 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:37:22,685 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:37:22,685 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 255.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:37:22,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1578. [2021-03-11 14:37:22,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.489537095751427) internal successors, (7080), 1577 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7080 transitions. [2021-03-11 14:37:22,733 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7080 transitions. Word has length 28 [2021-03-11 14:37:22,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:22,733 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7080 transitions. [2021-03-11 14:37:22,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:22,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7080 transitions. [2021-03-11 14:37:22,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:22,735 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:22,735 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:22,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-11 14:37:22,736 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:22,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:22,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1701400724, now seen corresponding path program 148 times [2021-03-11 14:37:22,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:22,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510247423] [2021-03-11 14:37:22,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:22,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:22,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:22,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:22,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:22,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:22,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:22,757 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:22,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:22,767 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:22,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:22,782 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:22,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:22,812 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:22,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:22,850 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:22,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:22,895 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:22,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:22,930 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:22,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:22,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:22,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510247423] [2021-03-11 14:37:22,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:22,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:22,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399467329] [2021-03-11 14:37:22,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:22,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:22,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:22,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:22,963 INFO L87 Difference]: Start difference. First operand 1578 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:23,061 INFO L93 Difference]: Finished difference Result 2956 states and 11747 transitions. [2021-03-11 14:37:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:23,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:23,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:23,067 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:37:23,067 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:37:23,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 233.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:23,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:37:23,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1572. [2021-03-11 14:37:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.495862507956716) internal successors, (7063), 1571 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7063 transitions. [2021-03-11 14:37:23,115 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7063 transitions. Word has length 28 [2021-03-11 14:37:23,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:23,116 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7063 transitions. [2021-03-11 14:37:23,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7063 transitions. [2021-03-11 14:37:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:23,118 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:23,118 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:23,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-11 14:37:23,118 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:23,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:23,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1727328112, now seen corresponding path program 149 times [2021-03-11 14:37:23,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:23,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897854990] [2021-03-11 14:37:23,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:23,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:23,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:23,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:23,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:23,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:23,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:23,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:23,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:23,150 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:23,164 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:23,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:23,194 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:23,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:23,233 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:23,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:23,280 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:23,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:23,314 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:23,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:23,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897854990] [2021-03-11 14:37:23,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:23,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:23,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087511614] [2021-03-11 14:37:23,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:23,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:23,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:23,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:23,346 INFO L87 Difference]: Start difference. First operand 1572 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:23,465 INFO L93 Difference]: Finished difference Result 2954 states and 11744 transitions. [2021-03-11 14:37:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:23,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:23,470 INFO L225 Difference]: With dead ends: 2954 [2021-03-11 14:37:23,470 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:37:23,471 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:37:23,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1579. [2021-03-11 14:37:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.484157160963244) internal successors, (7076), 1578 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7076 transitions. [2021-03-11 14:37:23,516 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7076 transitions. Word has length 28 [2021-03-11 14:37:23,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:23,517 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7076 transitions. [2021-03-11 14:37:23,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7076 transitions. [2021-03-11 14:37:23,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:23,519 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:23,519 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:23,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-11 14:37:23,519 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:23,519 INFO L82 PathProgramCache]: Analyzing trace with hash -982625614, now seen corresponding path program 150 times [2021-03-11 14:37:23,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:23,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142463008] [2021-03-11 14:37:23,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:23,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:23,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:23,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:23,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:23,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:23,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:23,540 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:23,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:23,550 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:23,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:23,564 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:23,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:23,593 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:23,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:23,630 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:23,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:23,676 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:23,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:23,710 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:23,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:23,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142463008] [2021-03-11 14:37:23,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:23,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:23,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226843546] [2021-03-11 14:37:23,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:23,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:23,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:23,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:23,742 INFO L87 Difference]: Start difference. First operand 1579 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:23,839 INFO L93 Difference]: Finished difference Result 2958 states and 11745 transitions. [2021-03-11 14:37:23,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:23,839 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:23,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:23,846 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:37:23,847 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:37:23,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 231.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:23,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:37:23,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1566. [2021-03-11 14:37:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.502875399361022) internal successors, (7047), 1565 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7047 transitions. [2021-03-11 14:37:23,892 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7047 transitions. Word has length 28 [2021-03-11 14:37:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:23,892 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7047 transitions. [2021-03-11 14:37:23,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7047 transitions. [2021-03-11 14:37:23,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:23,894 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:23,894 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:23,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-11 14:37:23,894 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:23,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:23,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1606068116, now seen corresponding path program 151 times [2021-03-11 14:37:23,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:23,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119683885] [2021-03-11 14:37:23,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:23,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:23,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:23,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:23,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:23,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:23,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:23,915 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:23,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:23,925 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:23,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:23,939 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:23,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:23,968 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:23,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:23,990 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:23,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:24,018 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:24,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:24,051 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:24,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:24,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:24,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119683885] [2021-03-11 14:37:24,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:24,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:24,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474493239] [2021-03-11 14:37:24,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:24,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:24,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:24,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:24,082 INFO L87 Difference]: Start difference. First operand 1566 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:24,202 INFO L93 Difference]: Finished difference Result 2933 states and 11703 transitions. [2021-03-11 14:37:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:24,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:24,207 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:37:24,207 INFO L226 Difference]: Without dead ends: 2918 [2021-03-11 14:37:24,208 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:24,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-03-11 14:37:24,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1575. [2021-03-11 14:37:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.492376111817027) internal successors, (7071), 1574 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7071 transitions. [2021-03-11 14:37:24,253 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7071 transitions. Word has length 28 [2021-03-11 14:37:24,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:24,253 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7071 transitions. [2021-03-11 14:37:24,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7071 transitions. [2021-03-11 14:37:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:24,255 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:24,255 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:24,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-11 14:37:24,256 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash -861365618, now seen corresponding path program 152 times [2021-03-11 14:37:24,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:24,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158151625] [2021-03-11 14:37:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:24,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:24,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:24,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:24,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:24,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:24,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:24,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:24,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:24,289 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:24,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:24,303 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:24,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:24,332 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:24,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:24,354 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:24,382 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:24,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:24,416 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:24,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:24,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158151625] [2021-03-11 14:37:24,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:24,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:24,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494840566] [2021-03-11 14:37:24,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:24,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:24,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:24,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:24,447 INFO L87 Difference]: Start difference. First operand 1575 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:24,569 INFO L93 Difference]: Finished difference Result 2934 states and 11700 transitions. [2021-03-11 14:37:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:24,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:24,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:24,574 INFO L225 Difference]: With dead ends: 2934 [2021-03-11 14:37:24,574 INFO L226 Difference]: Without dead ends: 2913 [2021-03-11 14:37:24,574 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-03-11 14:37:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1570. [2021-03-11 14:37:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.498406628425749) internal successors, (7058), 1569 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7058 transitions. [2021-03-11 14:37:24,620 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7058 transitions. Word has length 28 [2021-03-11 14:37:24,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:24,620 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7058 transitions. [2021-03-11 14:37:24,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7058 transitions. [2021-03-11 14:37:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:24,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:24,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:24,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-11 14:37:24,622 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:24,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:24,623 INFO L82 PathProgramCache]: Analyzing trace with hash -2141297918, now seen corresponding path program 153 times [2021-03-11 14:37:24,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:24,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633031613] [2021-03-11 14:37:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:24,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:24,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:24,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:24,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:24,639 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:24,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:24,647 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:24,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:24,657 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:24,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:24,671 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:24,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:24,700 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:24,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:24,723 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:24,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:24,750 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:24,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:24,784 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:24,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:24,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:24,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633031613] [2021-03-11 14:37:24,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:24,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:24,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781155331] [2021-03-11 14:37:24,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:24,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:24,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:24,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:24,815 INFO L87 Difference]: Start difference. First operand 1570 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:24,938 INFO L93 Difference]: Finished difference Result 2930 states and 11692 transitions. [2021-03-11 14:37:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:24,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:24,943 INFO L225 Difference]: With dead ends: 2930 [2021-03-11 14:37:24,943 INFO L226 Difference]: Without dead ends: 2915 [2021-03-11 14:37:24,943 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2021-03-11 14:37:24,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1574. [2021-03-11 14:37:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.491417673235855) internal successors, (7065), 1573 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7065 transitions. [2021-03-11 14:37:24,989 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7065 transitions. Word has length 28 [2021-03-11 14:37:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:24,989 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7065 transitions. [2021-03-11 14:37:24,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7065 transitions. [2021-03-11 14:37:24,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:24,991 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:24,991 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:24,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-11 14:37:24,991 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:24,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:24,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1968050226, now seen corresponding path program 154 times [2021-03-11 14:37:24,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:24,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114639072] [2021-03-11 14:37:24,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:25,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:25,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:25,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:25,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:25,012 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:25,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:25,019 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:25,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:25,030 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:25,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:25,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:25,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:25,072 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:25,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:25,095 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:25,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:25,122 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:25,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:25,155 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:25,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:25,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114639072] [2021-03-11 14:37:25,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:25,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:25,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568799906] [2021-03-11 14:37:25,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:25,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:25,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:25,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:25,186 INFO L87 Difference]: Start difference. First operand 1574 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:25,324 INFO L93 Difference]: Finished difference Result 2929 states and 11686 transitions. [2021-03-11 14:37:25,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:25,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:25,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:25,330 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:37:25,330 INFO L226 Difference]: Without dead ends: 2911 [2021-03-11 14:37:25,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 219.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-11 14:37:25,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 1570. [2021-03-11 14:37:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.495857233906947) internal successors, (7054), 1569 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7054 transitions. [2021-03-11 14:37:25,376 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7054 transitions. Word has length 28 [2021-03-11 14:37:25,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:25,376 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7054 transitions. [2021-03-11 14:37:25,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7054 transitions. [2021-03-11 14:37:25,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:25,378 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:25,378 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:25,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-11 14:37:25,378 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:25,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:25,378 INFO L82 PathProgramCache]: Analyzing trace with hash 214345538, now seen corresponding path program 155 times [2021-03-11 14:37:25,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:25,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035497347] [2021-03-11 14:37:25,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:25,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:25,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:25,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:25,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:25,395 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:25,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:25,403 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:25,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:25,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:25,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:25,431 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:25,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:25,468 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:25,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:25,496 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:25,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:25,530 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:25,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:25,574 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:25,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:25,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035497347] [2021-03-11 14:37:25,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:25,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:25,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165491690] [2021-03-11 14:37:25,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:25,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:25,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:25,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:25,615 INFO L87 Difference]: Start difference. First operand 1570 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:25,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:25,775 INFO L93 Difference]: Finished difference Result 2932 states and 11692 transitions. [2021-03-11 14:37:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:25,775 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:25,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:25,780 INFO L225 Difference]: With dead ends: 2932 [2021-03-11 14:37:25,780 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:37:25,780 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 261.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:25,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:37:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1574. [2021-03-11 14:37:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.488874761602034) internal successors, (7061), 1573 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7061 transitions. [2021-03-11 14:37:25,826 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7061 transitions. Word has length 28 [2021-03-11 14:37:25,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:25,826 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7061 transitions. [2021-03-11 14:37:25,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7061 transitions. [2021-03-11 14:37:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:25,828 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:25,828 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:25,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-11 14:37:25,828 INFO L428 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:25,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:25,829 INFO L82 PathProgramCache]: Analyzing trace with hash -357109268, now seen corresponding path program 156 times [2021-03-11 14:37:25,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:25,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304260309] [2021-03-11 14:37:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:25,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:25,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:25,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:25,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:25,845 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:25,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:25,853 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:25,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:25,865 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:25,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:25,879 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:25,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:25,909 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:25,932 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:25,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:25,959 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:25,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:25,992 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:25,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:26,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304260309] [2021-03-11 14:37:26,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:26,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:26,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128073076] [2021-03-11 14:37:26,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:26,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:26,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:26,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:26,024 INFO L87 Difference]: Start difference. First operand 1574 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:26,146 INFO L93 Difference]: Finished difference Result 2930 states and 11684 transitions. [2021-03-11 14:37:26,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:26,146 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:26,151 INFO L225 Difference]: With dead ends: 2930 [2021-03-11 14:37:26,151 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:37:26,151 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 223.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:37:26,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1566. [2021-03-11 14:37:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.500319488817891) internal successors, (7043), 1565 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7043 transitions. [2021-03-11 14:37:26,197 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7043 transitions. Word has length 28 [2021-03-11 14:37:26,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:26,197 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7043 transitions. [2021-03-11 14:37:26,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7043 transitions. [2021-03-11 14:37:26,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:26,199 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:26,199 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:26,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-11 14:37:26,199 INFO L428 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:26,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:26,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1595565012, now seen corresponding path program 157 times [2021-03-11 14:37:26,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:26,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342663455] [2021-03-11 14:37:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:26,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:26,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:26,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:26,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:26,213 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:26,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:26,223 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:26,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:26,233 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:26,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:26,247 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:26,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:26,276 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:26,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:26,312 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:26,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:26,356 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:26,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:26,389 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:26,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:26,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342663455] [2021-03-11 14:37:26,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:26,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:26,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255299837] [2021-03-11 14:37:26,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:26,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:26,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:26,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:26,421 INFO L87 Difference]: Start difference. First operand 1566 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:26,539 INFO L93 Difference]: Finished difference Result 2945 states and 11722 transitions. [2021-03-11 14:37:26,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:26,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:26,545 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:37:26,545 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:37:26,545 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:26,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:37:26,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1577. [2021-03-11 14:37:26,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.4873096446700504) internal successors, (7072), 1576 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7072 transitions. [2021-03-11 14:37:26,591 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7072 transitions. Word has length 28 [2021-03-11 14:37:26,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:26,591 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7072 transitions. [2021-03-11 14:37:26,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7072 transitions. [2021-03-11 14:37:26,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:26,593 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:26,593 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:26,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-11 14:37:26,593 INFO L428 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:26,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:26,593 INFO L82 PathProgramCache]: Analyzing trace with hash -106160016, now seen corresponding path program 158 times [2021-03-11 14:37:26,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:26,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849754978] [2021-03-11 14:37:26,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:26,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:26,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:26,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:26,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:26,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:26,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:26,617 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:26,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:26,627 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:26,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:26,641 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:26,671 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:26,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:26,706 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:26,750 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:26,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:26,785 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:26,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:26,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:26,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849754978] [2021-03-11 14:37:26,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:26,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:26,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198875029] [2021-03-11 14:37:26,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:26,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:26,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:26,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:26,817 INFO L87 Difference]: Start difference. First operand 1577 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:26,913 INFO L93 Difference]: Finished difference Result 2950 states and 11726 transitions. [2021-03-11 14:37:26,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:26,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:26,919 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:37:26,919 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:37:26,919 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 229.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:26,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:37:26,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1571. [2021-03-11 14:37:26,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.494267515923567) internal successors, (7056), 1570 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7056 transitions. [2021-03-11 14:37:26,964 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7056 transitions. Word has length 28 [2021-03-11 14:37:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:26,964 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7056 transitions. [2021-03-11 14:37:26,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:26,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7056 transitions. [2021-03-11 14:37:26,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:26,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:26,967 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:26,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-11 14:37:26,967 INFO L428 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:26,967 INFO L82 PathProgramCache]: Analyzing trace with hash 553231524, now seen corresponding path program 159 times [2021-03-11 14:37:26,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:26,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188450361] [2021-03-11 14:37:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:26,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:26,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:26,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:26,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:26,982 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:26,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:26,989 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:26,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:27,000 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:27,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:27,014 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:27,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:27,044 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:27,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:27,079 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:27,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:27,107 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:27,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:27,141 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:27,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:27,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188450361] [2021-03-11 14:37:27,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:27,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:27,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349316522] [2021-03-11 14:37:27,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:27,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:27,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:27,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:27,173 INFO L87 Difference]: Start difference. First operand 1571 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:27,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:27,315 INFO L93 Difference]: Finished difference Result 2937 states and 11701 transitions. [2021-03-11 14:37:27,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:27,315 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:27,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:27,320 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:37:27,320 INFO L226 Difference]: Without dead ends: 2922 [2021-03-11 14:37:27,321 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2021-03-11 14:37:27,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1575. [2021-03-11 14:37:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.4872935196950445) internal successors, (7063), 1574 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7063 transitions. [2021-03-11 14:37:27,366 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7063 transitions. Word has length 28 [2021-03-11 14:37:27,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:27,366 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7063 transitions. [2021-03-11 14:37:27,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7063 transitions. [2021-03-11 14:37:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:27,368 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:27,368 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:27,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-11 14:37:27,368 INFO L428 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:27,368 INFO L82 PathProgramCache]: Analyzing trace with hash 726479216, now seen corresponding path program 160 times [2021-03-11 14:37:27,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:27,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151754268] [2021-03-11 14:37:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:27,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:27,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:27,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:27,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:27,383 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:27,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:27,390 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:27,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:27,400 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:27,415 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:27,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:27,445 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:27,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:27,481 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:27,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:27,509 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:27,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:27,543 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:27,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:27,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151754268] [2021-03-11 14:37:27,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:27,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:27,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693076328] [2021-03-11 14:37:27,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:27,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:27,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:27,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:27,574 INFO L87 Difference]: Start difference. First operand 1575 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:27,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:27,695 INFO L93 Difference]: Finished difference Result 2936 states and 11695 transitions. [2021-03-11 14:37:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:27,695 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:27,701 INFO L225 Difference]: With dead ends: 2936 [2021-03-11 14:37:27,701 INFO L226 Difference]: Without dead ends: 2918 [2021-03-11 14:37:27,701 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:27,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-03-11 14:37:27,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1571. [2021-03-11 14:37:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.49171974522293) internal successors, (7052), 1570 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7052 transitions. [2021-03-11 14:37:27,747 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7052 transitions. Word has length 28 [2021-03-11 14:37:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:27,747 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7052 transitions. [2021-03-11 14:37:27,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7052 transitions. [2021-03-11 14:37:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:27,749 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:27,749 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:27,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-11 14:37:27,749 INFO L428 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:27,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:27,749 INFO L82 PathProgramCache]: Analyzing trace with hash 969551140, now seen corresponding path program 161 times [2021-03-11 14:37:27,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:27,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788219744] [2021-03-11 14:37:27,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:27,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:27,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:27,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:27,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:27,767 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:27,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:27,775 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:27,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:27,787 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:27,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:27,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:27,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:27,831 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:27,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:27,867 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:27,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:27,930 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:27,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:27,964 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:27,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:27,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788219744] [2021-03-11 14:37:27,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:27,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:27,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627934104] [2021-03-11 14:37:27,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:27,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:27,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:27,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:27,995 INFO L87 Difference]: Start difference. First operand 1571 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:28,116 INFO L93 Difference]: Finished difference Result 2948 states and 11717 transitions. [2021-03-11 14:37:28,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:28,117 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:28,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:28,122 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:37:28,122 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:37:28,122 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:28,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:37:28,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1576. [2021-03-11 14:37:28,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.482539682539683) internal successors, (7060), 1575 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7060 transitions. [2021-03-11 14:37:28,167 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7060 transitions. Word has length 28 [2021-03-11 14:37:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:28,168 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7060 transitions. [2021-03-11 14:37:28,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7060 transitions. [2021-03-11 14:37:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:28,170 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:28,170 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:28,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-11 14:37:28,170 INFO L428 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:28,170 INFO L82 PathProgramCache]: Analyzing trace with hash -346606164, now seen corresponding path program 162 times [2021-03-11 14:37:28,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:28,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106647308] [2021-03-11 14:37:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:28,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:28,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:28,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:28,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:28,187 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:28,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:28,194 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:28,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:28,204 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:28,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:28,217 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:28,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:28,246 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:28,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:28,281 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:28,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:28,322 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:28,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:28,355 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:28,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:28,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106647308] [2021-03-11 14:37:28,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:28,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:28,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412310007] [2021-03-11 14:37:28,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:28,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:28,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:28,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:28,385 INFO L87 Difference]: Start difference. First operand 1576 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:28,522 INFO L93 Difference]: Finished difference Result 2942 states and 11701 transitions. [2021-03-11 14:37:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:28,523 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:28,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:28,528 INFO L225 Difference]: With dead ends: 2942 [2021-03-11 14:37:28,528 INFO L226 Difference]: Without dead ends: 2918 [2021-03-11 14:37:28,528 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 243.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-03-11 14:37:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1566. [2021-03-11 14:37:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.497124600638978) internal successors, (7038), 1565 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7038 transitions. [2021-03-11 14:37:28,574 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7038 transitions. Word has length 28 [2021-03-11 14:37:28,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:28,574 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7038 transitions. [2021-03-11 14:37:28,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7038 transitions. [2021-03-11 14:37:28,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:28,576 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:28,576 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:28,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-11 14:37:28,576 INFO L428 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:28,576 INFO L82 PathProgramCache]: Analyzing trace with hash -840359410, now seen corresponding path program 163 times [2021-03-11 14:37:28,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:28,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947585814] [2021-03-11 14:37:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:28,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:28,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:28,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:28,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:28,591 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:28,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:28,597 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:28,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:28,608 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:28,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:28,621 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:28,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:28,650 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:28,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:28,686 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:28,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:28,731 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:28,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:28,764 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:28,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:28,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947585814] [2021-03-11 14:37:28,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:28,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:28,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757583847] [2021-03-11 14:37:28,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:28,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:28,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:28,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:28,795 INFO L87 Difference]: Start difference. First operand 1566 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:28,918 INFO L93 Difference]: Finished difference Result 2950 states and 11729 transitions. [2021-03-11 14:37:28,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:28,924 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:37:28,924 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:37:28,924 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:37:28,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1578. [2021-03-11 14:37:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.482561826252378) internal successors, (7069), 1577 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7069 transitions. [2021-03-11 14:37:28,970 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7069 transitions. Word has length 28 [2021-03-11 14:37:28,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:28,970 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7069 transitions. [2021-03-11 14:37:28,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7069 transitions. [2021-03-11 14:37:28,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:28,972 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:28,972 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:28,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-11 14:37:28,973 INFO L428 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:28,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:28,973 INFO L82 PathProgramCache]: Analyzing trace with hash -95656912, now seen corresponding path program 164 times [2021-03-11 14:37:28,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:28,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506632343] [2021-03-11 14:37:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:28,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:28,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:28,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:28,989 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:28,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:28,996 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:28,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:29,006 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:29,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:29,020 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:29,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:29,049 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:29,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:29,085 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:29,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:29,130 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:29,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:29,164 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:29,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:29,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506632343] [2021-03-11 14:37:29,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:29,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:29,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370186172] [2021-03-11 14:37:29,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:29,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:29,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:29,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:29,195 INFO L87 Difference]: Start difference. First operand 1578 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:29,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:29,325 INFO L93 Difference]: Finished difference Result 2954 states and 11730 transitions. [2021-03-11 14:37:29,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:29,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:29,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:29,330 INFO L225 Difference]: With dead ends: 2954 [2021-03-11 14:37:29,330 INFO L226 Difference]: Without dead ends: 2927 [2021-03-11 14:37:29,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:29,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2021-03-11 14:37:29,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 1571. [2021-03-11 14:37:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.491082802547771) internal successors, (7051), 1570 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7051 transitions. [2021-03-11 14:37:29,376 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7051 transitions. Word has length 28 [2021-03-11 14:37:29,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:29,376 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7051 transitions. [2021-03-11 14:37:29,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7051 transitions. [2021-03-11 14:37:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:29,378 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:29,378 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:29,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-11 14:37:29,378 INFO L428 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:29,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:29,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1308437126, now seen corresponding path program 165 times [2021-03-11 14:37:29,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:29,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846314252] [2021-03-11 14:37:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:29,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:29,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:29,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:29,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:29,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:29,399 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:29,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:29,409 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:29,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:29,423 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:29,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:29,452 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:29,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:29,487 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:29,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:29,514 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:29,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:29,547 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:29,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:29,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846314252] [2021-03-11 14:37:29,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:29,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:29,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807534932] [2021-03-11 14:37:29,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:29,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:29,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:29,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:29,579 INFO L87 Difference]: Start difference. First operand 1571 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:29,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:29,703 INFO L93 Difference]: Finished difference Result 2941 states and 11705 transitions. [2021-03-11 14:37:29,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:29,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:29,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:29,709 INFO L225 Difference]: With dead ends: 2941 [2021-03-11 14:37:29,709 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:37:29,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 230.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:37:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1575. [2021-03-11 14:37:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.484116899618805) internal successors, (7058), 1574 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7058 transitions. [2021-03-11 14:37:29,755 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7058 transitions. Word has length 28 [2021-03-11 14:37:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:29,755 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7058 transitions. [2021-03-11 14:37:29,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7058 transitions. [2021-03-11 14:37:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:29,757 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:29,757 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:29,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-11 14:37:29,757 INFO L428 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:29,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:29,757 INFO L82 PathProgramCache]: Analyzing trace with hash 736982320, now seen corresponding path program 166 times [2021-03-11 14:37:29,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:29,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868076094] [2021-03-11 14:37:29,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:29,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:29,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:29,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:29,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:29,771 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:29,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:29,777 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:29,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:29,788 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:29,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:29,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:29,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:29,830 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:29,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:29,866 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:29,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:29,893 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:29,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:29,926 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:29,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:29,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868076094] [2021-03-11 14:37:29,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:29,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:29,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407406280] [2021-03-11 14:37:29,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:29,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:29,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:29,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:29,957 INFO L87 Difference]: Start difference. First operand 1575 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:30,087 INFO L93 Difference]: Finished difference Result 2939 states and 11697 transitions. [2021-03-11 14:37:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:30,092 INFO L225 Difference]: With dead ends: 2939 [2021-03-11 14:37:30,092 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:37:30,093 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 230.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:30,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:37:30,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1571. [2021-03-11 14:37:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4885350318471335) internal successors, (7047), 1570 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7047 transitions. [2021-03-11 14:37:30,139 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7047 transitions. Word has length 28 [2021-03-11 14:37:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:30,139 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7047 transitions. [2021-03-11 14:37:30,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7047 transitions. [2021-03-11 14:37:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:30,141 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:30,141 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:30,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-11 14:37:30,141 INFO L428 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:30,142 INFO L82 PathProgramCache]: Analyzing trace with hash -630886714, now seen corresponding path program 167 times [2021-03-11 14:37:30,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:30,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701930729] [2021-03-11 14:37:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:30,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:30,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:30,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:30,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:30,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:30,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:30,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:30,172 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:30,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:30,186 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:30,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:30,216 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:30,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:30,252 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:30,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:30,294 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:30,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:30,328 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:30,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:30,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701930729] [2021-03-11 14:37:30,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:30,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:30,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618635132] [2021-03-11 14:37:30,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:30,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:30,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:30,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:30,359 INFO L87 Difference]: Start difference. First operand 1571 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:30,483 INFO L93 Difference]: Finished difference Result 2950 states and 11717 transitions. [2021-03-11 14:37:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:30,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:30,489 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:37:30,489 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:37:30,489 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 224.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:37:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1576. [2021-03-11 14:37:30,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.479365079365079) internal successors, (7055), 1575 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7055 transitions. [2021-03-11 14:37:30,535 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7055 transitions. Word has length 28 [2021-03-11 14:37:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:30,535 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7055 transitions. [2021-03-11 14:37:30,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7055 transitions. [2021-03-11 14:37:30,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:30,537 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:30,537 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:30,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-11 14:37:30,537 INFO L428 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:30,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:30,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1947044018, now seen corresponding path program 168 times [2021-03-11 14:37:30,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:30,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971771397] [2021-03-11 14:37:30,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:30,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:30,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:30,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:30,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:30,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:30,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:30,558 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:30,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:30,569 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:30,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:30,582 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:30,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:30,611 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:30,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:30,648 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:30,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:30,689 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:30,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:30,722 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:30,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:30,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971771397] [2021-03-11 14:37:30,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:30,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:30,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295618293] [2021-03-11 14:37:30,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:30,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:30,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:30,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:30,753 INFO L87 Difference]: Start difference. First operand 1576 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:30,884 INFO L93 Difference]: Finished difference Result 2944 states and 11701 transitions. [2021-03-11 14:37:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:30,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:30,890 INFO L225 Difference]: With dead ends: 2944 [2021-03-11 14:37:30,890 INFO L226 Difference]: Without dead ends: 2915 [2021-03-11 14:37:30,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:30,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2021-03-11 14:37:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1561. [2021-03-11 14:37:30,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 4.5025641025641026) internal successors, (7024), 1560 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 7024 transitions. [2021-03-11 14:37:30,936 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 7024 transitions. Word has length 28 [2021-03-11 14:37:30,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:30,936 INFO L480 AbstractCegarLoop]: Abstraction has 1561 states and 7024 transitions. [2021-03-11 14:37:30,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:30,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 7024 transitions. [2021-03-11 14:37:30,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:30,938 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:30,938 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:30,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-11 14:37:30,938 INFO L428 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:30,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:30,938 INFO L82 PathProgramCache]: Analyzing trace with hash -254171636, now seen corresponding path program 169 times [2021-03-11 14:37:30,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:30,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898412914] [2021-03-11 14:37:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:30,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:30,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:30,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:30,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:30,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:30,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:30,958 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:30,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:30,968 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:30,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:30,982 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:30,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:30,999 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:30,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:31,021 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:31,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:31,056 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:31,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:31,098 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:31,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:31,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898412914] [2021-03-11 14:37:31,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:31,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:31,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527885751] [2021-03-11 14:37:31,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:31,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:31,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:31,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:31,138 INFO L87 Difference]: Start difference. First operand 1561 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:31,275 INFO L93 Difference]: Finished difference Result 2932 states and 11702 transitions. [2021-03-11 14:37:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:31,281 INFO L225 Difference]: With dead ends: 2932 [2021-03-11 14:37:31,281 INFO L226 Difference]: Without dead ends: 2917 [2021-03-11 14:37:31,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 224.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:31,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2021-03-11 14:37:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1575. [2021-03-11 14:37:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.492376111817027) internal successors, (7071), 1574 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7071 transitions. [2021-03-11 14:37:31,328 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7071 transitions. Word has length 28 [2021-03-11 14:37:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:31,328 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7071 transitions. [2021-03-11 14:37:31,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7071 transitions. [2021-03-11 14:37:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:31,330 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:31,330 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:31,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-11 14:37:31,331 INFO L428 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:31,331 INFO L82 PathProgramCache]: Analyzing trace with hash 490530862, now seen corresponding path program 170 times [2021-03-11 14:37:31,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:31,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106275033] [2021-03-11 14:37:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:31,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:31,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:31,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:31,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:31,344 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:31,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:31,351 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:31,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:31,362 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:31,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:31,375 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:31,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:31,392 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:31,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:31,415 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:31,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:31,442 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:31,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:31,475 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:31,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:31,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106275033] [2021-03-11 14:37:31,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:31,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:31,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436315128] [2021-03-11 14:37:31,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:31,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:31,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:31,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:31,506 INFO L87 Difference]: Start difference. First operand 1575 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:31,645 INFO L93 Difference]: Finished difference Result 2933 states and 11699 transitions. [2021-03-11 14:37:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:31,646 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:31,651 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:37:31,651 INFO L226 Difference]: Without dead ends: 2912 [2021-03-11 14:37:31,651 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 207.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2021-03-11 14:37:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1570. [2021-03-11 14:37:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4977692797960485) internal successors, (7057), 1569 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:31,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7057 transitions. [2021-03-11 14:37:31,696 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7057 transitions. Word has length 28 [2021-03-11 14:37:31,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:31,696 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7057 transitions. [2021-03-11 14:37:31,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:31,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7057 transitions. [2021-03-11 14:37:31,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:31,699 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:31,699 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:31,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-11 14:37:31,699 INFO L428 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:31,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1327257016, now seen corresponding path program 171 times [2021-03-11 14:37:31,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:31,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211165745] [2021-03-11 14:37:31,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:31,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:31,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:31,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:31,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:31,712 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:31,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:31,719 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:31,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:31,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:31,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:31,744 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:31,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:31,761 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:31,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:31,783 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:31,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:31,830 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:31,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:31,863 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:31,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:31,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211165745] [2021-03-11 14:37:31,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:31,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:31,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584642656] [2021-03-11 14:37:31,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:31,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:31,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:31,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:31,895 INFO L87 Difference]: Start difference. First operand 1570 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:32,026 INFO L93 Difference]: Finished difference Result 2934 states and 11701 transitions. [2021-03-11 14:37:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:32,026 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:32,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:32,031 INFO L225 Difference]: With dead ends: 2934 [2021-03-11 14:37:32,031 INFO L226 Difference]: Without dead ends: 2919 [2021-03-11 14:37:32,032 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 227.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:32,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2021-03-11 14:37:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1575. [2021-03-11 14:37:32,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.489199491740788) internal successors, (7066), 1574 states have internal predecessors, (7066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7066 transitions. [2021-03-11 14:37:32,078 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7066 transitions. Word has length 28 [2021-03-11 14:37:32,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:32,078 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7066 transitions. [2021-03-11 14:37:32,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7066 transitions. [2021-03-11 14:37:32,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:32,080 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:32,080 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:32,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-11 14:37:32,080 INFO L428 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:32,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:32,080 INFO L82 PathProgramCache]: Analyzing trace with hash 906850478, now seen corresponding path program 172 times [2021-03-11 14:37:32,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:32,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726794904] [2021-03-11 14:37:32,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:32,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:32,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:32,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:32,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:32,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:32,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:32,106 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:32,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:32,117 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:32,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:32,134 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:32,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:32,158 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:32,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:32,187 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:32,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:32,238 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:32,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:32,272 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:32,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:32,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726794904] [2021-03-11 14:37:32,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:32,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:32,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137232868] [2021-03-11 14:37:32,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:32,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:32,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:32,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:32,304 INFO L87 Difference]: Start difference. First operand 1575 states and 7066 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:32,435 INFO L93 Difference]: Finished difference Result 2937 states and 11702 transitions. [2021-03-11 14:37:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:32,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:32,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:32,441 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:37:32,441 INFO L226 Difference]: Without dead ends: 2914 [2021-03-11 14:37:32,441 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-03-11 14:37:32,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1570. [2021-03-11 14:37:32,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.494582536647546) internal successors, (7052), 1569 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7052 transitions. [2021-03-11 14:37:32,487 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7052 transitions. Word has length 28 [2021-03-11 14:37:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:32,487 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7052 transitions. [2021-03-11 14:37:32,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7052 transitions. [2021-03-11 14:37:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:32,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:32,489 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:32,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-11 14:37:32,489 INFO L428 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:32,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1028386440, now seen corresponding path program 173 times [2021-03-11 14:37:32,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:32,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656710477] [2021-03-11 14:37:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:32,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:32,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:32,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:32,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:32,505 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:32,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:32,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:32,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:32,525 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:32,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:32,543 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:32,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:32,566 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:32,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:32,589 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:32,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:32,616 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:32,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:32,649 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:32,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:32,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656710477] [2021-03-11 14:37:32,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:32,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:32,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268664659] [2021-03-11 14:37:32,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:32,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:32,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:32,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:32,681 INFO L87 Difference]: Start difference. First operand 1570 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:32,811 INFO L93 Difference]: Finished difference Result 2937 states and 11703 transitions. [2021-03-11 14:37:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:32,812 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:32,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:32,817 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:37:32,817 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:37:32,817 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:32,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:37:32,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1576. [2021-03-11 14:37:32,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.484444444444445) internal successors, (7063), 1575 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7063 transitions. [2021-03-11 14:37:32,863 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7063 transitions. Word has length 28 [2021-03-11 14:37:32,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:32,863 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7063 transitions. [2021-03-11 14:37:32,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7063 transitions. [2021-03-11 14:37:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:32,865 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:32,865 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:32,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-11 14:37:32,865 INFO L428 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:32,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:32,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1777175860, now seen corresponding path program 174 times [2021-03-11 14:37:32,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:32,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103354304] [2021-03-11 14:37:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:32,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:32,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:32,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:32,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:32,879 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:32,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:32,886 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:32,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:32,896 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:32,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:32,910 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:32,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:32,927 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:32,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:32,950 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:32,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:32,977 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:32,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:33,011 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:33,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:33,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103354304] [2021-03-11 14:37:33,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:33,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:33,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778429376] [2021-03-11 14:37:33,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:33,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:33,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:33,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:33,043 INFO L87 Difference]: Start difference. First operand 1576 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:33,172 INFO L93 Difference]: Finished difference Result 2939 states and 11701 transitions. [2021-03-11 14:37:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:33,177 INFO L225 Difference]: With dead ends: 2939 [2021-03-11 14:37:33,177 INFO L226 Difference]: Without dead ends: 2910 [2021-03-11 14:37:33,177 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2021-03-11 14:37:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 1565. [2021-03-11 14:37:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.500639386189258) internal successors, (7039), 1564 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7039 transitions. [2021-03-11 14:37:33,223 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7039 transitions. Word has length 28 [2021-03-11 14:37:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:33,223 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7039 transitions. [2021-03-11 14:37:33,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7039 transitions. [2021-03-11 14:37:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:33,225 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:33,225 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:33,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-11 14:37:33,225 INFO L428 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:33,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:33,225 INFO L82 PathProgramCache]: Analyzing trace with hash -760517902, now seen corresponding path program 175 times [2021-03-11 14:37:33,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:33,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591216899] [2021-03-11 14:37:33,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:33,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:33,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:33,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:33,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:33,241 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:33,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:33,258 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:33,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:33,270 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:33,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:33,289 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:33,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:33,312 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:33,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:33,341 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:33,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:33,370 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:33,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:33,403 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:33,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:33,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591216899] [2021-03-11 14:37:33,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:33,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:33,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875474188] [2021-03-11 14:37:33,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:33,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:33,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:33,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:33,435 INFO L87 Difference]: Start difference. First operand 1565 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:33,559 INFO L93 Difference]: Finished difference Result 2924 states and 11677 transitions. [2021-03-11 14:37:33,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:33,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:33,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:33,564 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:37:33,564 INFO L226 Difference]: Without dead ends: 2909 [2021-03-11 14:37:33,564 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2021-03-11 14:37:33,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1574. [2021-03-11 14:37:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.490146217418944) internal successors, (7063), 1573 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7063 transitions. [2021-03-11 14:37:33,610 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7063 transitions. Word has length 28 [2021-03-11 14:37:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:33,610 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7063 transitions. [2021-03-11 14:37:33,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7063 transitions. [2021-03-11 14:37:33,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:33,612 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:33,613 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:33,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-11 14:37:33,613 INFO L428 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:33,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:33,613 INFO L82 PathProgramCache]: Analyzing trace with hash -15815404, now seen corresponding path program 176 times [2021-03-11 14:37:33,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:33,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350882248] [2021-03-11 14:37:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:33,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:33,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:33,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:33,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:33,629 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:33,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:33,636 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:33,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:33,647 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:33,661 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:33,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:33,678 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:33,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:33,700 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:33,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:33,728 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:33,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:33,762 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:33,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:33,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350882248] [2021-03-11 14:37:33,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:33,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:33,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481865122] [2021-03-11 14:37:33,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:33,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:33,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:33,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:33,794 INFO L87 Difference]: Start difference. First operand 1574 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:33,916 INFO L93 Difference]: Finished difference Result 2925 states and 11674 transitions. [2021-03-11 14:37:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:33,916 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:33,922 INFO L225 Difference]: With dead ends: 2925 [2021-03-11 14:37:33,922 INFO L226 Difference]: Without dead ends: 2904 [2021-03-11 14:37:33,922 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 209.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2021-03-11 14:37:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1569. [2021-03-11 14:37:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.496173469387755) internal successors, (7050), 1568 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7050 transitions. [2021-03-11 14:37:33,968 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7050 transitions. Word has length 28 [2021-03-11 14:37:33,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:33,968 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7050 transitions. [2021-03-11 14:37:33,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7050 transitions. [2021-03-11 14:37:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:33,970 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:33,970 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:33,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-03-11 14:37:33,970 INFO L428 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:33,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:33,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1295747704, now seen corresponding path program 177 times [2021-03-11 14:37:33,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:33,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275360177] [2021-03-11 14:37:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:33,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:33,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:33,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:33,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:33,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:33,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:33,991 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:33,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:34,002 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:34,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:34,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:34,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:34,033 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:34,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:34,056 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:34,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:34,084 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:34,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:34,118 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:34,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:34,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275360177] [2021-03-11 14:37:34,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:34,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:34,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038206042] [2021-03-11 14:37:34,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:34,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:34,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:34,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:34,149 INFO L87 Difference]: Start difference. First operand 1569 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:34,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:34,272 INFO L93 Difference]: Finished difference Result 2921 states and 11666 transitions. [2021-03-11 14:37:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:34,277 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:37:34,278 INFO L226 Difference]: Without dead ends: 2906 [2021-03-11 14:37:34,278 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 210.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2021-03-11 14:37:34,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1573. [2021-03-11 14:37:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.489185750636132) internal successors, (7057), 1572 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7057 transitions. [2021-03-11 14:37:34,324 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7057 transitions. Word has length 28 [2021-03-11 14:37:34,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:34,324 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7057 transitions. [2021-03-11 14:37:34,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7057 transitions. [2021-03-11 14:37:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:34,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:34,327 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:34,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-03-11 14:37:34,327 INFO L428 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:34,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:34,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1122500012, now seen corresponding path program 178 times [2021-03-11 14:37:34,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:34,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570811878] [2021-03-11 14:37:34,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:34,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:34,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:34,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:34,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:34,345 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:34,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:34,353 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:34,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:34,365 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:34,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:34,382 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:34,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:34,407 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:34,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:34,435 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:34,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:34,475 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:34,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:34,518 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:34,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:34,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570811878] [2021-03-11 14:37:34,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:34,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:34,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197781349] [2021-03-11 14:37:34,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:34,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:34,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:34,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:34,559 INFO L87 Difference]: Start difference. First operand 1573 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:34,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:34,719 INFO L93 Difference]: Finished difference Result 2920 states and 11660 transitions. [2021-03-11 14:37:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:34,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:34,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:34,727 INFO L225 Difference]: With dead ends: 2920 [2021-03-11 14:37:34,727 INFO L226 Difference]: Without dead ends: 2902 [2021-03-11 14:37:34,727 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:34,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2021-03-11 14:37:34,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 1569. [2021-03-11 14:37:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.4936224489795915) internal successors, (7046), 1568 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7046 transitions. [2021-03-11 14:37:34,788 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7046 transitions. Word has length 28 [2021-03-11 14:37:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:34,788 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7046 transitions. [2021-03-11 14:37:34,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:34,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7046 transitions. [2021-03-11 14:37:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:34,790 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:34,790 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:34,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-03-11 14:37:34,790 INFO L428 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:34,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:34,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1059895752, now seen corresponding path program 179 times [2021-03-11 14:37:34,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:34,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095128434] [2021-03-11 14:37:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:34,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:34,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:34,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:34,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:34,804 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:34,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:34,811 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:34,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:34,822 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:34,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:34,836 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:34,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:34,853 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:34,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:34,876 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:34,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:34,903 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:34,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:34,937 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:34,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:34,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095128434] [2021-03-11 14:37:34,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:34,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:34,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160335439] [2021-03-11 14:37:34,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:34,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:34,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:34,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:34,968 INFO L87 Difference]: Start difference. First operand 1569 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:35,094 INFO L93 Difference]: Finished difference Result 2923 states and 11666 transitions. [2021-03-11 14:37:35,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:35,095 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:35,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:35,100 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:37:35,100 INFO L226 Difference]: Without dead ends: 2907 [2021-03-11 14:37:35,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 209.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:35,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-03-11 14:37:35,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1573. [2021-03-11 14:37:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.486641221374046) internal successors, (7053), 1572 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7053 transitions. [2021-03-11 14:37:35,147 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7053 transitions. Word has length 28 [2021-03-11 14:37:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:35,147 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7053 transitions. [2021-03-11 14:37:35,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7053 transitions. [2021-03-11 14:37:35,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:35,150 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:35,150 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:35,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-03-11 14:37:35,150 INFO L428 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:35,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:35,150 INFO L82 PathProgramCache]: Analyzing trace with hash 488440946, now seen corresponding path program 180 times [2021-03-11 14:37:35,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:35,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017879424] [2021-03-11 14:37:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:35,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:35,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:35,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:35,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:35,164 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:35,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:35,171 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:35,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:35,182 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:35,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:35,196 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:35,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:35,214 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:35,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:35,236 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:35,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:35,264 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:35,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:35,298 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:35,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:35,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017879424] [2021-03-11 14:37:35,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:35,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:35,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642036625] [2021-03-11 14:37:35,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:35,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:35,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:35,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:35,330 INFO L87 Difference]: Start difference. First operand 1573 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:35,452 INFO L93 Difference]: Finished difference Result 2921 states and 11658 transitions. [2021-03-11 14:37:35,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:35,452 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:35,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:35,457 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:37:35,457 INFO L226 Difference]: Without dead ends: 2899 [2021-03-11 14:37:35,458 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:35,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-03-11 14:37:35,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1565. [2021-03-11 14:37:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.498081841432225) internal successors, (7035), 1564 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7035 transitions. [2021-03-11 14:37:35,503 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7035 transitions. Word has length 28 [2021-03-11 14:37:35,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:35,504 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7035 transitions. [2021-03-11 14:37:35,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7035 transitions. [2021-03-11 14:37:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:35,506 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:35,506 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:35,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-03-11 14:37:35,506 INFO L428 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:35,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:35,506 INFO L82 PathProgramCache]: Analyzing trace with hash -739511694, now seen corresponding path program 181 times [2021-03-11 14:37:35,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:35,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215451739] [2021-03-11 14:37:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:35,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:35,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:35,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:35,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:35,519 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:35,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:35,527 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:35,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:35,537 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:35,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:35,551 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:35,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:35,569 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:35,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:35,608 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:35,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:35,655 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:35,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:35,689 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:35,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:35,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215451739] [2021-03-11 14:37:35,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:35,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:35,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147218876] [2021-03-11 14:37:35,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:35,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:35,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:35,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:35,721 INFO L87 Difference]: Start difference. First operand 1565 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:35,841 INFO L93 Difference]: Finished difference Result 2928 states and 11681 transitions. [2021-03-11 14:37:35,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:35,842 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:35,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:35,848 INFO L225 Difference]: With dead ends: 2928 [2021-03-11 14:37:35,848 INFO L226 Difference]: Without dead ends: 2913 [2021-03-11 14:37:35,849 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:35,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-03-11 14:37:35,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1574. [2021-03-11 14:37:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.487603305785124) internal successors, (7059), 1573 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7059 transitions. [2021-03-11 14:37:35,900 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7059 transitions. Word has length 28 [2021-03-11 14:37:35,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:35,900 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7059 transitions. [2021-03-11 14:37:35,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:35,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7059 transitions. [2021-03-11 14:37:35,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:35,902 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:35,902 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:35,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-03-11 14:37:35,902 INFO L428 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:35,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:35,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1494595800, now seen corresponding path program 182 times [2021-03-11 14:37:35,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:35,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905139519] [2021-03-11 14:37:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:35,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:35,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:35,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:35,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:35,922 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:35,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:35,930 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:35,942 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:35,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:35,959 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:35,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:35,984 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:35,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:36,026 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:36,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:36,074 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:36,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:36,109 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:36,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:36,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:36,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905139519] [2021-03-11 14:37:36,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:36,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:36,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529257274] [2021-03-11 14:37:36,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:36,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:36,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:36,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:36,142 INFO L87 Difference]: Start difference. First operand 1574 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:36,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:36,277 INFO L93 Difference]: Finished difference Result 2931 states and 11682 transitions. [2021-03-11 14:37:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:36,278 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:36,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:36,283 INFO L225 Difference]: With dead ends: 2931 [2021-03-11 14:37:36,283 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:37:36,283 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:37:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1569. [2021-03-11 14:37:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.4936224489795915) internal successors, (7046), 1568 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7046 transitions. [2021-03-11 14:37:36,329 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7046 transitions. Word has length 28 [2021-03-11 14:37:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:36,329 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7046 transitions. [2021-03-11 14:37:36,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7046 transitions. [2021-03-11 14:37:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:36,331 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:36,331 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:36,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-03-11 14:37:36,331 INFO L428 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:36,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:36,331 INFO L82 PathProgramCache]: Analyzing trace with hash -201656116, now seen corresponding path program 183 times [2021-03-11 14:37:36,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:36,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124175375] [2021-03-11 14:37:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:36,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:36,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:36,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:36,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:36,345 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:36,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:36,352 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:36,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:36,363 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:36,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:36,377 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:36,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:36,394 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:36,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:36,433 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:36,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:36,461 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:36,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:36,495 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:36,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:36,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124175375] [2021-03-11 14:37:36,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:36,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:36,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588028791] [2021-03-11 14:37:36,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:36,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:36,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:36,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:36,527 INFO L87 Difference]: Start difference. First operand 1569 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:36,648 INFO L93 Difference]: Finished difference Result 2923 states and 11666 transitions. [2021-03-11 14:37:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:36,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:36,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:36,654 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:37:36,654 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:37:36,654 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 227.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:37:36,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1573. [2021-03-11 14:37:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.486641221374046) internal successors, (7053), 1572 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7053 transitions. [2021-03-11 14:37:36,700 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7053 transitions. Word has length 28 [2021-03-11 14:37:36,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:36,700 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7053 transitions. [2021-03-11 14:37:36,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7053 transitions. [2021-03-11 14:37:36,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:36,702 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:36,702 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:36,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-03-11 14:37:36,702 INFO L428 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:36,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:36,702 INFO L82 PathProgramCache]: Analyzing trace with hash -28408424, now seen corresponding path program 184 times [2021-03-11 14:37:36,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:36,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758456749] [2021-03-11 14:37:36,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:36,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:36,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:36,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:36,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:36,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:36,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:36,727 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:36,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:36,737 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:36,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:36,751 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:36,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:36,769 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:36,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:36,807 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:36,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:36,835 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:36,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:36,869 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:36,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:36,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758456749] [2021-03-11 14:37:36,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:36,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:36,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184642256] [2021-03-11 14:37:36,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:36,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:36,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:36,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:36,901 INFO L87 Difference]: Start difference. First operand 1573 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:37,050 INFO L93 Difference]: Finished difference Result 2922 states and 11660 transitions. [2021-03-11 14:37:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:37,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:37,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:37,056 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:37:37,056 INFO L226 Difference]: Without dead ends: 2904 [2021-03-11 14:37:37,056 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 230.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:37,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2021-03-11 14:37:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1569. [2021-03-11 14:37:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.491071428571429) internal successors, (7042), 1568 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7042 transitions. [2021-03-11 14:37:37,103 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7042 transitions. Word has length 28 [2021-03-11 14:37:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:37,103 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7042 transitions. [2021-03-11 14:37:37,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7042 transitions. [2021-03-11 14:37:37,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:37,106 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:37,106 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:37,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-03-11 14:37:37,106 INFO L428 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:37,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:37,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1724660340, now seen corresponding path program 185 times [2021-03-11 14:37:37,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:37,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515318148] [2021-03-11 14:37:37,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:37,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:37,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:37,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:37,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:37,120 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:37,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:37,127 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:37,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:37,138 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:37,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:37,152 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:37,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:37,169 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:37,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:37,208 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:37,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:37,255 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:37,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:37,289 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:37,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:37,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515318148] [2021-03-11 14:37:37,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:37,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:37,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703549602] [2021-03-11 14:37:37,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:37,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:37,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:37,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:37,322 INFO L87 Difference]: Start difference. First operand 1569 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:37,463 INFO L93 Difference]: Finished difference Result 2929 states and 11674 transitions. [2021-03-11 14:37:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:37,464 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:37,469 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:37:37,469 INFO L226 Difference]: Without dead ends: 2911 [2021-03-11 14:37:37,469 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 253.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:37,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-11 14:37:37,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 1573. [2021-03-11 14:37:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.484096692111959) internal successors, (7049), 1572 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7049 transitions. [2021-03-11 14:37:37,515 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7049 transitions. Word has length 28 [2021-03-11 14:37:37,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:37,515 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7049 transitions. [2021-03-11 14:37:37,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7049 transitions. [2021-03-11 14:37:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:37,517 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:37,517 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:37,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-03-11 14:37:37,517 INFO L428 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:37,517 INFO L82 PathProgramCache]: Analyzing trace with hash 509447154, now seen corresponding path program 186 times [2021-03-11 14:37:37,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:37,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139208311] [2021-03-11 14:37:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:37,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:37,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:37,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:37,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:37,531 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:37,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:37,538 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:37,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:37,549 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:37,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:37,563 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:37,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:37,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:37,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:37,619 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:37,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:37,667 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:37,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:37,701 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:37,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:37,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139208311] [2021-03-11 14:37:37,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:37,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:37,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612085671] [2021-03-11 14:37:37,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:37,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:37,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:37,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:37,734 INFO L87 Difference]: Start difference. First operand 1573 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:37,878 INFO L93 Difference]: Finished difference Result 2925 states and 11662 transitions. [2021-03-11 14:37:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:37,883 INFO L225 Difference]: With dead ends: 2925 [2021-03-11 14:37:37,883 INFO L226 Difference]: Without dead ends: 2903 [2021-03-11 14:37:37,883 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-03-11 14:37:37,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1565. [2021-03-11 14:37:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.495524296675192) internal successors, (7031), 1564 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7031 transitions. [2021-03-11 14:37:37,931 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7031 transitions. Word has length 28 [2021-03-11 14:37:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:37,932 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7031 transitions. [2021-03-11 14:37:37,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7031 transitions. [2021-03-11 14:37:37,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:37,934 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:37,934 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:37,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-03-11 14:37:37,934 INFO L428 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:37,934 INFO L82 PathProgramCache]: Analyzing trace with hash 15693908, now seen corresponding path program 187 times [2021-03-11 14:37:37,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:37,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087325493] [2021-03-11 14:37:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:37,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:37,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:37,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:37,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:37,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:37,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:37,961 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:37,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:37,972 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:37,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:37,985 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:37,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:38,003 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:38,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:38,024 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:38,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:38,053 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:38,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:38,087 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:38,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:38,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:38,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087325493] [2021-03-11 14:37:38,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:38,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:38,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276296632] [2021-03-11 14:37:38,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:38,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:38,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:38,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:38,119 INFO L87 Difference]: Start difference. First operand 1565 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:38,240 INFO L93 Difference]: Finished difference Result 2933 states and 11689 transitions. [2021-03-11 14:37:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:38,240 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:38,245 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:37:38,245 INFO L226 Difference]: Without dead ends: 2917 [2021-03-11 14:37:38,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 211.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:38,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2021-03-11 14:37:38,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1575. [2021-03-11 14:37:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.483481575603558) internal successors, (7057), 1574 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7057 transitions. [2021-03-11 14:37:38,291 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7057 transitions. Word has length 28 [2021-03-11 14:37:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:38,291 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7057 transitions. [2021-03-11 14:37:38,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:38,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7057 transitions. [2021-03-11 14:37:38,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:38,293 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:38,293 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:38,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-03-11 14:37:38,294 INFO L428 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:38,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:38,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1505098904, now seen corresponding path program 188 times [2021-03-11 14:37:38,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:38,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971369892] [2021-03-11 14:37:38,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:38,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:38,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:38,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:38,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:38,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:38,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:38,316 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:38,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:38,327 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:38,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:38,341 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:38,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:38,359 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:38,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:38,381 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:38,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:38,409 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:38,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:38,443 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:38,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:38,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:38,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971369892] [2021-03-11 14:37:38,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:38,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:38,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011730313] [2021-03-11 14:37:38,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:38,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:38,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:38,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:38,475 INFO L87 Difference]: Start difference. First operand 1575 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:38,599 INFO L93 Difference]: Finished difference Result 2935 states and 11687 transitions. [2021-03-11 14:37:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:38,599 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:38,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:38,605 INFO L225 Difference]: With dead ends: 2935 [2021-03-11 14:37:38,605 INFO L226 Difference]: Without dead ends: 2911 [2021-03-11 14:37:38,605 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 216.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:38,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-11 14:37:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 1569. [2021-03-11 14:37:38,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.491071428571429) internal successors, (7042), 1568 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:38,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7042 transitions. [2021-03-11 14:37:38,651 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7042 transitions. Word has length 28 [2021-03-11 14:37:38,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:38,651 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7042 transitions. [2021-03-11 14:37:38,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7042 transitions. [2021-03-11 14:37:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:38,653 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:38,653 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:38,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-03-11 14:37:38,653 INFO L428 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:38,653 INFO L82 PathProgramCache]: Analyzing trace with hash 553549486, now seen corresponding path program 189 times [2021-03-11 14:37:38,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:38,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871060414] [2021-03-11 14:37:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:38,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:38,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:38,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:38,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:38,667 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:38,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:38,674 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:38,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:38,685 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:38,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:38,699 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:38,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:38,717 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:38,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:38,739 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:38,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:38,767 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:38,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:38,801 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:38,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:38,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871060414] [2021-03-11 14:37:38,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:38,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:38,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332494094] [2021-03-11 14:37:38,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:38,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:38,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:38,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:38,833 INFO L87 Difference]: Start difference. First operand 1569 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:38,980 INFO L93 Difference]: Finished difference Result 2927 states and 11671 transitions. [2021-03-11 14:37:38,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:38,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:38,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:38,985 INFO L225 Difference]: With dead ends: 2927 [2021-03-11 14:37:38,985 INFO L226 Difference]: Without dead ends: 2911 [2021-03-11 14:37:38,985 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:39,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-11 14:37:39,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 1573. [2021-03-11 14:37:39,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.484096692111959) internal successors, (7049), 1572 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7049 transitions. [2021-03-11 14:37:39,031 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7049 transitions. Word has length 28 [2021-03-11 14:37:39,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:39,031 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7049 transitions. [2021-03-11 14:37:39,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7049 transitions. [2021-03-11 14:37:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:39,033 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:39,033 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:39,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-03-11 14:37:39,033 INFO L428 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:39,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:39,034 INFO L82 PathProgramCache]: Analyzing trace with hash -17905320, now seen corresponding path program 190 times [2021-03-11 14:37:39,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:39,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114212687] [2021-03-11 14:37:39,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:39,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:39,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:39,047 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:39,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:39,054 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:39,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:39,065 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:39,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:39,079 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:39,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:39,097 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:39,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:39,118 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:39,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:39,146 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:39,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:39,180 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:39,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:39,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:39,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114212687] [2021-03-11 14:37:39,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:39,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:39,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116150830] [2021-03-11 14:37:39,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:39,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:39,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:39,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:39,214 INFO L87 Difference]: Start difference. First operand 1573 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:39,357 INFO L93 Difference]: Finished difference Result 2925 states and 11663 transitions. [2021-03-11 14:37:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:39,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:39,363 INFO L225 Difference]: With dead ends: 2925 [2021-03-11 14:37:39,363 INFO L226 Difference]: Without dead ends: 2907 [2021-03-11 14:37:39,363 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:39,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-03-11 14:37:39,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1569. [2021-03-11 14:37:39,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.488520408163265) internal successors, (7038), 1568 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7038 transitions. [2021-03-11 14:37:39,413 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7038 transitions. Word has length 28 [2021-03-11 14:37:39,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:39,413 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7038 transitions. [2021-03-11 14:37:39,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7038 transitions. [2021-03-11 14:37:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:39,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:39,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:39,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-03-11 14:37:39,415 INFO L428 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:39,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:39,415 INFO L82 PathProgramCache]: Analyzing trace with hash 969869102, now seen corresponding path program 191 times [2021-03-11 14:37:39,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:39,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132460159] [2021-03-11 14:37:39,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:39,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:39,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:39,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:39,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:39,429 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:39,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:39,436 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:39,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:39,447 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:39,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:39,461 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:39,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:39,479 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:39,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:39,501 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:39,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:39,545 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:39,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:39,580 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:39,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:39,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132460159] [2021-03-11 14:37:39,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:39,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:39,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574784620] [2021-03-11 14:37:39,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:39,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:39,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:39,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:39,612 INFO L87 Difference]: Start difference. First operand 1569 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:39,758 INFO L93 Difference]: Finished difference Result 2931 states and 11675 transitions. [2021-03-11 14:37:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:39,758 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:39,763 INFO L225 Difference]: With dead ends: 2931 [2021-03-11 14:37:39,763 INFO L226 Difference]: Without dead ends: 2913 [2021-03-11 14:37:39,764 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 234.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:39,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-03-11 14:37:39,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1573. [2021-03-11 14:37:39,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.481552162849873) internal successors, (7045), 1572 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7045 transitions. [2021-03-11 14:37:39,815 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7045 transitions. Word has length 28 [2021-03-11 14:37:39,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:39,815 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7045 transitions. [2021-03-11 14:37:39,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:39,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7045 transitions. [2021-03-11 14:37:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:39,817 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:39,817 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:39,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-03-11 14:37:39,817 INFO L428 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:39,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:39,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1090990700, now seen corresponding path program 192 times [2021-03-11 14:37:39,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:39,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927675775] [2021-03-11 14:37:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:39,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:39,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:39,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:39,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:39,831 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:39,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:39,839 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:39,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:39,851 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:39,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:39,866 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:39,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:39,885 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:39,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:39,908 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:39,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:39,953 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:39,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:39,990 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:39,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:40,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927675775] [2021-03-11 14:37:40,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:40,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:40,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487139793] [2021-03-11 14:37:40,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:40,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:40,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:40,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:40,024 INFO L87 Difference]: Start difference. First operand 1573 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:40,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:40,158 INFO L93 Difference]: Finished difference Result 2927 states and 11663 transitions. [2021-03-11 14:37:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:40,158 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:40,164 INFO L225 Difference]: With dead ends: 2927 [2021-03-11 14:37:40,164 INFO L226 Difference]: Without dead ends: 2901 [2021-03-11 14:37:40,164 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2021-03-11 14:37:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1561. [2021-03-11 14:37:40,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 4.5) internal successors, (7020), 1560 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 7020 transitions. [2021-03-11 14:37:40,213 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 7020 transitions. Word has length 28 [2021-03-11 14:37:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:40,213 INFO L480 AbstractCegarLoop]: Abstraction has 1561 states and 7020 transitions. [2021-03-11 14:37:40,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 7020 transitions. [2021-03-11 14:37:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:40,215 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:40,215 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:40,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-11 14:37:40,215 INFO L428 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:40,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:40,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1682365546, now seen corresponding path program 193 times [2021-03-11 14:37:40,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:40,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363762460] [2021-03-11 14:37:40,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:40,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:40,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:40,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:40,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:40,229 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:40,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:40,237 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:40,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:40,248 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:40,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:40,263 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:40,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:40,295 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:40,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:40,336 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:40,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:40,382 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:40,417 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:40,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:40,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363762460] [2021-03-11 14:37:40,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:40,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:40,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156330455] [2021-03-11 14:37:40,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:40,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:40,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:40,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:40,450 INFO L87 Difference]: Start difference. First operand 1561 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:40,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:40,573 INFO L93 Difference]: Finished difference Result 2965 states and 11770 transitions. [2021-03-11 14:37:40,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:40,573 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:40,579 INFO L225 Difference]: With dead ends: 2965 [2021-03-11 14:37:40,579 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:37:40,579 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:40,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:37:40,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1580. [2021-03-11 14:37:40,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.484483850538315) internal successors, (7081), 1579 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7081 transitions. [2021-03-11 14:37:40,629 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7081 transitions. Word has length 28 [2021-03-11 14:37:40,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:40,629 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7081 transitions. [2021-03-11 14:37:40,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7081 transitions. [2021-03-11 14:37:40,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:40,632 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:40,632 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:40,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-11 14:37:40,632 INFO L428 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:40,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1123196754, now seen corresponding path program 194 times [2021-03-11 14:37:40,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:40,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74256996] [2021-03-11 14:37:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:40,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:40,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:40,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:40,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:40,647 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:40,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:40,655 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:40,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:40,667 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:40,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:40,682 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:40,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:40,713 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:40,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:40,755 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:40,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:40,801 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:40,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:40,838 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:40,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:40,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74256996] [2021-03-11 14:37:40,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:40,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:40,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170272926] [2021-03-11 14:37:40,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:40,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:40,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:40,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:40,872 INFO L87 Difference]: Start difference. First operand 1580 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:40,998 INFO L93 Difference]: Finished difference Result 2970 states and 11774 transitions. [2021-03-11 14:37:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:40,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:40,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:41,005 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:37:41,005 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:37:41,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:41,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:37:41,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1574. [2021-03-11 14:37:41,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4907819453274) internal successors, (7064), 1573 states have internal predecessors, (7064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7064 transitions. [2021-03-11 14:37:41,055 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7064 transitions. Word has length 28 [2021-03-11 14:37:41,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:41,055 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7064 transitions. [2021-03-11 14:37:41,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7064 transitions. [2021-03-11 14:37:41,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:41,057 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:41,057 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:41,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-03-11 14:37:41,057 INFO L428 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:41,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1001660792, now seen corresponding path program 195 times [2021-03-11 14:37:41,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:41,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473266595] [2021-03-11 14:37:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:41,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:41,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:41,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:41,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:41,074 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:41,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:41,081 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:41,093 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:41,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:41,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:41,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:41,140 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:41,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:41,181 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:41,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:41,230 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:41,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:41,266 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:41,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473266595] [2021-03-11 14:37:41,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:41,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:41,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795060784] [2021-03-11 14:37:41,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:41,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:41,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:41,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:41,300 INFO L87 Difference]: Start difference. First operand 1574 states and 7064 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:41,436 INFO L93 Difference]: Finished difference Result 2962 states and 11759 transitions. [2021-03-11 14:37:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:41,442 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:37:41,442 INFO L226 Difference]: Without dead ends: 2947 [2021-03-11 14:37:41,442 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 270.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:41,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-03-11 14:37:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1579. [2021-03-11 14:37:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.482256020278834) internal successors, (7073), 1578 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7073 transitions. [2021-03-11 14:37:41,488 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7073 transitions. Word has length 28 [2021-03-11 14:37:41,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:41,488 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7073 transitions. [2021-03-11 14:37:41,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7073 transitions. [2021-03-11 14:37:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:41,490 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:41,490 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:41,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-03-11 14:37:41,490 INFO L428 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:41,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:41,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1232446702, now seen corresponding path program 196 times [2021-03-11 14:37:41,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:41,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215098930] [2021-03-11 14:37:41,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:41,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:41,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:41,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:41,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:41,505 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:41,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:41,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:41,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:41,523 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:41,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:41,538 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:41,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:41,568 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:41,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:41,608 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:41,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:41,656 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:41,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:41,690 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:41,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:41,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:41,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215098930] [2021-03-11 14:37:41,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:41,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:41,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380714921] [2021-03-11 14:37:41,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:41,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:41,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:41,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:41,724 INFO L87 Difference]: Start difference. First operand 1579 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:41,856 INFO L93 Difference]: Finished difference Result 2965 states and 11760 transitions. [2021-03-11 14:37:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:41,856 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:41,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:41,862 INFO L225 Difference]: With dead ends: 2965 [2021-03-11 14:37:41,862 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:37:41,862 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:41,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:37:41,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1574. [2021-03-11 14:37:41,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.487603305785124) internal successors, (7059), 1573 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7059 transitions. [2021-03-11 14:37:41,908 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7059 transitions. Word has length 28 [2021-03-11 14:37:41,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:41,908 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7059 transitions. [2021-03-11 14:37:41,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:41,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7059 transitions. [2021-03-11 14:37:41,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:41,910 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:41,910 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:41,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-03-11 14:37:41,910 INFO L428 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:41,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:41,910 INFO L82 PathProgramCache]: Analyzing trace with hash -585341176, now seen corresponding path program 197 times [2021-03-11 14:37:41,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:41,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682998363] [2021-03-11 14:37:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:41,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:41,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:41,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:41,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:41,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:41,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:41,932 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:41,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:41,943 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:41,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:41,957 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:41,987 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:41,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:42,028 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:42,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:42,058 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:42,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:42,093 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:42,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:42,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682998363] [2021-03-11 14:37:42,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:42,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:42,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372602659] [2021-03-11 14:37:42,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:42,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:42,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:42,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:42,126 INFO L87 Difference]: Start difference. First operand 1574 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:42,225 INFO L93 Difference]: Finished difference Result 2977 states and 11784 transitions. [2021-03-11 14:37:42,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:42,225 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:42,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:42,230 INFO L225 Difference]: With dead ends: 2977 [2021-03-11 14:37:42,230 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:37:42,231 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 224.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:37:42,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1584. [2021-03-11 14:37:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.469993682880607) internal successors, (7076), 1583 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7076 transitions. [2021-03-11 14:37:42,277 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7076 transitions. Word has length 28 [2021-03-11 14:37:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:42,277 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7076 transitions. [2021-03-11 14:37:42,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7076 transitions. [2021-03-11 14:37:42,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:42,279 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:42,279 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:42,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-03-11 14:37:42,279 INFO L428 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:42,279 INFO L82 PathProgramCache]: Analyzing trace with hash 159361322, now seen corresponding path program 198 times [2021-03-11 14:37:42,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:42,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290686890] [2021-03-11 14:37:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:42,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:42,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:42,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:42,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:42,297 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:42,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:42,305 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:42,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:42,318 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:42,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:42,335 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:42,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:42,377 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:42,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:42,421 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:42,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:42,452 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:42,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:42,487 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:42,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:42,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290686890] [2021-03-11 14:37:42,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:42,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:42,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845522002] [2021-03-11 14:37:42,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:42,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:42,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:42,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:42,519 INFO L87 Difference]: Start difference. First operand 1584 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:42,655 INFO L93 Difference]: Finished difference Result 2975 states and 11772 transitions. [2021-03-11 14:37:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:42,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:42,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:42,661 INFO L225 Difference]: With dead ends: 2975 [2021-03-11 14:37:42,661 INFO L226 Difference]: Without dead ends: 2940 [2021-03-11 14:37:42,661 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:42,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-03-11 14:37:42,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1567. [2021-03-11 14:37:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.495530012771392) internal successors, (7040), 1566 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7040 transitions. [2021-03-11 14:37:42,721 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7040 transitions. Word has length 28 [2021-03-11 14:37:42,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:42,721 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7040 transitions. [2021-03-11 14:37:42,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:42,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7040 transitions. [2021-03-11 14:37:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:42,723 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:42,724 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:42,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-03-11 14:37:42,724 INFO L428 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:42,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:42,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1176019280, now seen corresponding path program 199 times [2021-03-11 14:37:42,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:42,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579450172] [2021-03-11 14:37:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:42,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:42,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:42,746 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:42,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:42,757 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:42,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:42,771 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:42,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:42,802 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:42,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:42,839 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:42,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:42,885 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:42,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:42,921 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:42,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:42,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579450172] [2021-03-11 14:37:42,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:42,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:42,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385258695] [2021-03-11 14:37:42,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:42,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:42,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:42,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:42,954 INFO L87 Difference]: Start difference. First operand 1567 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:43,104 INFO L93 Difference]: Finished difference Result 2953 states and 11734 transitions. [2021-03-11 14:37:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:43,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:43,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:43,110 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:37:43,110 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:37:43,110 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:43,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:37:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1578. [2021-03-11 14:37:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.482561826252378) internal successors, (7069), 1577 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7069 transitions. [2021-03-11 14:37:43,157 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7069 transitions. Word has length 28 [2021-03-11 14:37:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:43,157 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7069 transitions. [2021-03-11 14:37:43,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7069 transitions. [2021-03-11 14:37:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:43,159 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:43,159 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:43,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-03-11 14:37:43,159 INFO L428 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:43,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1629543020, now seen corresponding path program 200 times [2021-03-11 14:37:43,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:43,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994695558] [2021-03-11 14:37:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:43,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:43,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:43,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:43,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:43,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:43,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:43,181 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:43,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:43,193 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:43,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:43,207 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:43,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:43,238 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:43,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:43,275 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:43,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:43,321 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:43,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:43,357 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:43,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:43,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994695558] [2021-03-11 14:37:43,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:43,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:43,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821333092] [2021-03-11 14:37:43,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:43,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:43,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:43,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:43,390 INFO L87 Difference]: Start difference. First operand 1578 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:43,526 INFO L93 Difference]: Finished difference Result 2958 states and 11738 transitions. [2021-03-11 14:37:43,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:43,527 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:43,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:43,532 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:37:43,532 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:37:43,532 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:37:43,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1572. [2021-03-11 14:37:43,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.489497135582432) internal successors, (7053), 1571 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7053 transitions. [2021-03-11 14:37:43,578 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7053 transitions. Word has length 28 [2021-03-11 14:37:43,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:43,578 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7053 transitions. [2021-03-11 14:37:43,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7053 transitions. [2021-03-11 14:37:43,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:43,580 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:43,580 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:43,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-03-11 14:37:43,581 INFO L428 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:43,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:43,581 INFO L82 PathProgramCache]: Analyzing trace with hash -970151480, now seen corresponding path program 201 times [2021-03-11 14:37:43,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:43,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802906929] [2021-03-11 14:37:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:43,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:43,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:43,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:43,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:43,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:43,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:43,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:43,613 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:43,627 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:43,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:43,657 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:43,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:43,693 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:43,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:43,720 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:43,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:43,754 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:43,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:43,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802906929] [2021-03-11 14:37:43,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:43,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:43,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929349637] [2021-03-11 14:37:43,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:43,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:43,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:43,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:43,785 INFO L87 Difference]: Start difference. First operand 1572 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:43,922 INFO L93 Difference]: Finished difference Result 2945 states and 11713 transitions. [2021-03-11 14:37:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:43,928 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:37:43,928 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:37:43,928 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:43,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:37:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1576. [2021-03-11 14:37:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.482539682539683) internal successors, (7060), 1575 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7060 transitions. [2021-03-11 14:37:43,974 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7060 transitions. Word has length 28 [2021-03-11 14:37:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:43,974 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7060 transitions. [2021-03-11 14:37:43,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7060 transitions. [2021-03-11 14:37:43,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:43,976 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:43,976 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:43,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-03-11 14:37:43,976 INFO L428 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:43,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:43,977 INFO L82 PathProgramCache]: Analyzing trace with hash -796903788, now seen corresponding path program 202 times [2021-03-11 14:37:43,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:43,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598362893] [2021-03-11 14:37:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:43,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:43,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:43,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:43,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:43,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:43,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:44,002 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:44,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:44,014 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:44,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:44,030 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:44,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:44,060 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:44,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:44,096 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:44,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:44,123 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:44,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:44,157 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:44,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:44,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598362893] [2021-03-11 14:37:44,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:44,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:44,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214986443] [2021-03-11 14:37:44,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:44,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:44,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:44,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:44,188 INFO L87 Difference]: Start difference. First operand 1576 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:44,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:44,322 INFO L93 Difference]: Finished difference Result 2944 states and 11707 transitions. [2021-03-11 14:37:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:44,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:44,327 INFO L225 Difference]: With dead ends: 2944 [2021-03-11 14:37:44,327 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:37:44,327 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 244.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:37:44,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1572. [2021-03-11 14:37:44,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.486950986632718) internal successors, (7049), 1571 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7049 transitions. [2021-03-11 14:37:44,374 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7049 transitions. Word has length 28 [2021-03-11 14:37:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:44,374 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7049 transitions. [2021-03-11 14:37:44,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:44,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7049 transitions. [2021-03-11 14:37:44,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:44,376 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:44,376 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:44,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-03-11 14:37:44,376 INFO L428 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:44,376 INFO L82 PathProgramCache]: Analyzing trace with hash -553831864, now seen corresponding path program 203 times [2021-03-11 14:37:44,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:44,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389406762] [2021-03-11 14:37:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:44,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:44,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:44,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:44,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:44,394 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:44,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:44,401 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:44,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:44,413 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:44,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:44,427 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:44,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:44,457 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:44,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:44,493 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:44,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:44,535 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:44,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:44,570 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:44,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:44,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:44,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389406762] [2021-03-11 14:37:44,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:44,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:44,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278453441] [2021-03-11 14:37:44,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:44,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:44,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:44,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:44,602 INFO L87 Difference]: Start difference. First operand 1572 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:44,725 INFO L93 Difference]: Finished difference Result 2956 states and 11729 transitions. [2021-03-11 14:37:44,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:44,725 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:44,731 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:37:44,731 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:37:44,731 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 229.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:44,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:37:44,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1577. [2021-03-11 14:37:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.477791878172589) internal successors, (7057), 1576 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:44,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7057 transitions. [2021-03-11 14:37:44,777 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7057 transitions. Word has length 28 [2021-03-11 14:37:44,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:44,777 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7057 transitions. [2021-03-11 14:37:44,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:44,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7057 transitions. [2021-03-11 14:37:44,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:44,779 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:44,779 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:44,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-03-11 14:37:44,779 INFO L428 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:44,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:44,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1869989168, now seen corresponding path program 204 times [2021-03-11 14:37:44,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:44,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379396646] [2021-03-11 14:37:44,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:44,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:44,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:44,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:44,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:44,797 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:44,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:44,804 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:44,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:44,817 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:44,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:44,831 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:44,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:44,861 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:44,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:44,897 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:44,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:44,939 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:44,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:44,973 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:44,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:45,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379396646] [2021-03-11 14:37:45,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:45,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:45,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468104786] [2021-03-11 14:37:45,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:45,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:45,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:45,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:45,004 INFO L87 Difference]: Start difference. First operand 1577 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:45,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:45,130 INFO L93 Difference]: Finished difference Result 2950 states and 11713 transitions. [2021-03-11 14:37:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:45,130 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:45,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:45,135 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:37:45,135 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:37:45,136 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:45,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:37:45,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1567. [2021-03-11 14:37:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.492337164750958) internal successors, (7035), 1566 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:45,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7035 transitions. [2021-03-11 14:37:45,183 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7035 transitions. Word has length 28 [2021-03-11 14:37:45,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:45,183 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7035 transitions. [2021-03-11 14:37:45,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7035 transitions. [2021-03-11 14:37:45,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:45,185 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:45,185 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:45,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-03-11 14:37:45,185 INFO L428 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:45,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:45,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1186522384, now seen corresponding path program 205 times [2021-03-11 14:37:45,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:45,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357484280] [2021-03-11 14:37:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:45,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:45,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:45,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:45,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:45,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:45,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:45,206 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:45,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:45,216 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:45,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:45,231 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:45,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:45,261 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:45,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:45,299 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:45,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:45,346 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:45,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:45,392 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:45,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:45,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357484280] [2021-03-11 14:37:45,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:45,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:45,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058718016] [2021-03-11 14:37:45,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:45,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:45,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:45,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:45,428 INFO L87 Difference]: Start difference. First operand 1567 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:45,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:45,571 INFO L93 Difference]: Finished difference Result 2945 states and 11714 transitions. [2021-03-11 14:37:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:45,571 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:45,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:45,577 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:37:45,577 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:37:45,577 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:37:45,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1576. [2021-03-11 14:37:45,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.481904761904762) internal successors, (7059), 1575 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7059 transitions. [2021-03-11 14:37:45,627 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7059 transitions. Word has length 28 [2021-03-11 14:37:45,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:45,627 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7059 transitions. [2021-03-11 14:37:45,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:45,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7059 transitions. [2021-03-11 14:37:45,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:45,629 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:45,629 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:45,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-03-11 14:37:45,629 INFO L428 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:45,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:45,629 INFO L82 PathProgramCache]: Analyzing trace with hash -874337418, now seen corresponding path program 206 times [2021-03-11 14:37:45,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:45,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992253971] [2021-03-11 14:37:45,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:45,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:45,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:45,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:45,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:45,643 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:45,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:45,650 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:45,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:45,676 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:45,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:45,693 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:45,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:45,723 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:45,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:45,761 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:45,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:45,808 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:45,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:45,842 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:45,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:45,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:45,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992253971] [2021-03-11 14:37:45,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:45,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:45,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363999969] [2021-03-11 14:37:45,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:45,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:45,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:45,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:45,874 INFO L87 Difference]: Start difference. First operand 1576 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:46,015 INFO L93 Difference]: Finished difference Result 2948 states and 11715 transitions. [2021-03-11 14:37:46,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:46,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:46,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:46,021 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:37:46,021 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:37:46,021 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 280.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:46,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:37:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1571. [2021-03-11 14:37:46,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.487898089171974) internal successors, (7046), 1570 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7046 transitions. [2021-03-11 14:37:46,069 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7046 transitions. Word has length 28 [2021-03-11 14:37:46,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:46,069 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7046 transitions. [2021-03-11 14:37:46,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7046 transitions. [2021-03-11 14:37:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:46,071 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:46,071 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:46,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-03-11 14:37:46,071 INFO L428 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:46,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1724377962, now seen corresponding path program 207 times [2021-03-11 14:37:46,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:46,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213927924] [2021-03-11 14:37:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:46,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:46,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:46,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:46,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:46,085 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:46,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:46,092 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:46,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:46,103 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:46,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:46,117 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:46,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:46,148 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:46,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:46,187 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:46,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:46,215 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:46,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:46,250 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:46,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:46,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213927924] [2021-03-11 14:37:46,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:46,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:46,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626529958] [2021-03-11 14:37:46,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:46,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:46,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:46,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:46,282 INFO L87 Difference]: Start difference. First operand 1571 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:46,454 INFO L93 Difference]: Finished difference Result 2940 states and 11699 transitions. [2021-03-11 14:37:46,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:46,454 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:46,460 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:37:46,460 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:37:46,460 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 242.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:46,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:37:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1575. [2021-03-11 14:37:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.480940279542566) internal successors, (7053), 1574 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7053 transitions. [2021-03-11 14:37:46,507 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7053 transitions. Word has length 28 [2021-03-11 14:37:46,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:46,507 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7053 transitions. [2021-03-11 14:37:46,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7053 transitions. [2021-03-11 14:37:46,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:46,509 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:46,509 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:46,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-03-11 14:37:46,509 INFO L428 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:46,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:46,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1897625654, now seen corresponding path program 208 times [2021-03-11 14:37:46,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:46,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179544568] [2021-03-11 14:37:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:46,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:46,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:46,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:46,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:46,527 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:46,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:46,535 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:46,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:46,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:46,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:46,566 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:46,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:46,606 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:46,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:46,653 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:46,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:46,681 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:46,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:46,715 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:46,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:46,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179544568] [2021-03-11 14:37:46,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:46,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:46,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912112489] [2021-03-11 14:37:46,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:46,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:46,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:46,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:46,747 INFO L87 Difference]: Start difference. First operand 1575 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:46,883 INFO L93 Difference]: Finished difference Result 2939 states and 11693 transitions. [2021-03-11 14:37:46,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:46,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:46,889 INFO L225 Difference]: With dead ends: 2939 [2021-03-11 14:37:46,889 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:37:46,889 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:37:46,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1571. [2021-03-11 14:37:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.485350318471338) internal successors, (7042), 1570 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7042 transitions. [2021-03-11 14:37:46,935 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7042 transitions. Word has length 28 [2021-03-11 14:37:46,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:46,935 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7042 transitions. [2021-03-11 14:37:46,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7042 transitions. [2021-03-11 14:37:46,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:46,937 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:46,937 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:46,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-03-11 14:37:46,937 INFO L428 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:46,938 INFO L82 PathProgramCache]: Analyzing trace with hash 201373738, now seen corresponding path program 209 times [2021-03-11 14:37:46,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:46,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647535710] [2021-03-11 14:37:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:46,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:46,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:46,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:46,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:46,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:46,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:46,960 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:46,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:46,971 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:46,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:46,985 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:46,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:47,015 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:47,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:47,054 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:47,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:47,102 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:47,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:47,137 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:47,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:47,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:47,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647535710] [2021-03-11 14:37:47,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:47,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:47,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376612445] [2021-03-11 14:37:47,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:47,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:47,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:47,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:47,169 INFO L87 Difference]: Start difference. First operand 1571 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:47,324 INFO L93 Difference]: Finished difference Result 2946 states and 11707 transitions. [2021-03-11 14:37:47,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:47,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:47,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:47,330 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:37:47,330 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:37:47,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:47,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:37:47,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1575. [2021-03-11 14:37:47,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.478398983481576) internal successors, (7049), 1574 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:47,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7049 transitions. [2021-03-11 14:37:47,376 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7049 transitions. Word has length 28 [2021-03-11 14:37:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:47,376 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7049 transitions. [2021-03-11 14:37:47,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7049 transitions. [2021-03-11 14:37:47,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:47,378 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:47,378 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:47,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-03-11 14:37:47,378 INFO L428 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:47,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:47,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1859486064, now seen corresponding path program 210 times [2021-03-11 14:37:47,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:47,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900378096] [2021-03-11 14:37:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:47,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:47,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:47,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:47,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:47,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:47,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:47,399 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:47,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:47,410 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:47,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:47,424 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:47,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:47,454 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:47,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:47,494 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:47,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:47,542 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:47,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:47,576 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:47,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:47,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900378096] [2021-03-11 14:37:47,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:47,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:47,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930518112] [2021-03-11 14:37:47,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:47,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:47,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:47,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:47,608 INFO L87 Difference]: Start difference. First operand 1575 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:47,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:47,784 INFO L93 Difference]: Finished difference Result 2942 states and 11695 transitions. [2021-03-11 14:37:47,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:47,785 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:47,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:47,790 INFO L225 Difference]: With dead ends: 2942 [2021-03-11 14:37:47,790 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:37:47,790 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 261.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:37:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1567. [2021-03-11 14:37:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.48978288633461) internal successors, (7031), 1566 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7031 transitions. [2021-03-11 14:37:47,837 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7031 transitions. Word has length 28 [2021-03-11 14:37:47,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:47,837 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7031 transitions. [2021-03-11 14:37:47,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7031 transitions. [2021-03-11 14:37:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:47,839 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:47,839 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:47,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-03-11 14:37:47,839 INFO L428 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:47,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:47,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1598033708, now seen corresponding path program 211 times [2021-03-11 14:37:47,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:47,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972250766] [2021-03-11 14:37:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:47,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:47,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:47,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:47,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:47,853 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:47,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:47,860 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:47,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:47,870 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:47,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:47,885 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:47,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:47,915 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:47,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:47,954 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:47,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:47,984 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:47,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:48,019 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:48,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:48,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972250766] [2021-03-11 14:37:48,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:48,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:48,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874782605] [2021-03-11 14:37:48,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:48,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:48,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:48,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:48,051 INFO L87 Difference]: Start difference. First operand 1567 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:48,185 INFO L93 Difference]: Finished difference Result 2973 states and 11768 transitions. [2021-03-11 14:37:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:48,185 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:48,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:48,190 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:37:48,190 INFO L226 Difference]: Without dead ends: 2953 [2021-03-11 14:37:48,190 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-03-11 14:37:48,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1583. [2021-03-11 14:37:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.467762326169406) internal successors, (7068), 1582 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7068 transitions. [2021-03-11 14:37:48,237 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7068 transitions. Word has length 28 [2021-03-11 14:37:48,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:48,237 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7068 transitions. [2021-03-11 14:37:48,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7068 transitions. [2021-03-11 14:37:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:48,239 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:48,239 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:48,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-03-11 14:37:48,239 INFO L428 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:48,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:48,239 INFO L82 PathProgramCache]: Analyzing trace with hash -853331210, now seen corresponding path program 212 times [2021-03-11 14:37:48,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:48,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58221882] [2021-03-11 14:37:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:48,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:48,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:48,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:48,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:48,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:48,260 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:48,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:48,271 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:48,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:48,285 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:48,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:48,315 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:48,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:48,355 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:48,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:48,384 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:48,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:48,418 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:48,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:48,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58221882] [2021-03-11 14:37:48,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:48,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:48,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328113449] [2021-03-11 14:37:48,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:48,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:48,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:48,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:48,450 INFO L87 Difference]: Start difference. First operand 1583 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:48,628 INFO L93 Difference]: Finished difference Result 2971 states and 11756 transitions. [2021-03-11 14:37:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:48,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:48,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:48,634 INFO L225 Difference]: With dead ends: 2971 [2021-03-11 14:37:48,634 INFO L226 Difference]: Without dead ends: 2943 [2021-03-11 14:37:48,634 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:48,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-03-11 14:37:48,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1573. [2021-03-11 14:37:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.481552162849873) internal successors, (7045), 1572 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7045 transitions. [2021-03-11 14:37:48,683 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7045 transitions. Word has length 28 [2021-03-11 14:37:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:48,683 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7045 transitions. [2021-03-11 14:37:48,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:48,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7045 transitions. [2021-03-11 14:37:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:48,685 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:48,685 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:48,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-03-11 14:37:48,685 INFO L428 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:48,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1060178130, now seen corresponding path program 213 times [2021-03-11 14:37:48,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:48,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453741318] [2021-03-11 14:37:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:48,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:48,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:48,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:48,704 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:48,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:48,712 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:48,724 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:48,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:48,741 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:48,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:48,780 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:48,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:48,827 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:48,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:48,870 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:48,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:48,905 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:48,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:48,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453741318] [2021-03-11 14:37:48,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:48,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:48,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187798549] [2021-03-11 14:37:48,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:48,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:48,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:48,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:48,941 INFO L87 Difference]: Start difference. First operand 1573 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:49,069 INFO L93 Difference]: Finished difference Result 2964 states and 11741 transitions. [2021-03-11 14:37:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:49,070 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:49,075 INFO L225 Difference]: With dead ends: 2964 [2021-03-11 14:37:49,075 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:37:49,075 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 257.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:37:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1578. [2021-03-11 14:37:49,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.472415979708307) internal successors, (7053), 1577 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7053 transitions. [2021-03-11 14:37:49,121 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7053 transitions. Word has length 28 [2021-03-11 14:37:49,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:49,121 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7053 transitions. [2021-03-11 14:37:49,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7053 transitions. [2021-03-11 14:37:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:49,123 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:49,123 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:49,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-03-11 14:37:49,123 INFO L428 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:49,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1918631862, now seen corresponding path program 214 times [2021-03-11 14:37:49,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:49,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417963459] [2021-03-11 14:37:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:49,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:49,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:49,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:49,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:49,137 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:49,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:49,144 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:49,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:49,155 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:49,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:49,169 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:49,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:49,200 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:49,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:49,239 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:49,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:49,282 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:49,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:49,316 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:49,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:49,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417963459] [2021-03-11 14:37:49,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:49,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:49,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153686070] [2021-03-11 14:37:49,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:49,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:49,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:49,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:49,348 INFO L87 Difference]: Start difference. First operand 1578 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:49,493 INFO L93 Difference]: Finished difference Result 2958 states and 11725 transitions. [2021-03-11 14:37:49,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:49,493 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:49,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:49,499 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:37:49,499 INFO L226 Difference]: Without dead ends: 2939 [2021-03-11 14:37:49,499 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 256.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-03-11 14:37:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1573. [2021-03-11 14:37:49,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.478371501272265) internal successors, (7040), 1572 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7040 transitions. [2021-03-11 14:37:49,544 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7040 transitions. Word has length 28 [2021-03-11 14:37:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:49,545 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7040 transitions. [2021-03-11 14:37:49,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7040 transitions. [2021-03-11 14:37:49,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:49,547 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:49,547 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:49,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-03-11 14:37:49,547 INFO L428 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:49,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:49,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1295465326, now seen corresponding path program 215 times [2021-03-11 14:37:49,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:49,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387522887] [2021-03-11 14:37:49,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:49,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:49,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:49,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:49,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:49,560 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:49,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:49,568 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:49,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:49,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:49,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:49,593 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:49,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:49,624 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:49,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:49,664 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:49,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:49,712 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:49,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:49,746 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:49,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:49,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387522887] [2021-03-11 14:37:49,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:49,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:49,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551369982] [2021-03-11 14:37:49,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:49,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:49,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:49,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:49,779 INFO L87 Difference]: Start difference. First operand 1573 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:49,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:49,964 INFO L93 Difference]: Finished difference Result 2959 states and 11728 transitions. [2021-03-11 14:37:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:49,964 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:49,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:49,970 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:37:49,970 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:37:49,970 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:49,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:37:50,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1577. [2021-03-11 14:37:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.471446700507614) internal successors, (7047), 1576 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7047 transitions. [2021-03-11 14:37:50,020 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7047 transitions. Word has length 28 [2021-03-11 14:37:50,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:50,020 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7047 transitions. [2021-03-11 14:37:50,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7047 transitions. [2021-03-11 14:37:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:50,022 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:50,022 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:50,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-03-11 14:37:50,022 INFO L428 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:50,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:50,023 INFO L82 PathProgramCache]: Analyzing trace with hash -765394476, now seen corresponding path program 216 times [2021-03-11 14:37:50,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:50,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383663582] [2021-03-11 14:37:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:50,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:50,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:50,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:50,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:50,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:50,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:50,044 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:50,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:50,056 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:50,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:50,070 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:50,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:50,102 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:50,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:50,143 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:50,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:50,191 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:50,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:50,226 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:50,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:50,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383663582] [2021-03-11 14:37:50,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:50,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:50,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493009509] [2021-03-11 14:37:50,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:50,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:50,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:50,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:50,260 INFO L87 Difference]: Start difference. First operand 1577 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:50,442 INFO L93 Difference]: Finished difference Result 2955 states and 11716 transitions. [2021-03-11 14:37:50,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:50,442 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:50,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:50,448 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:37:50,448 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:37:50,448 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:50,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:37:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1561. [2021-03-11 14:37:50,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 4.496153846153846) internal successors, (7014), 1560 states have internal predecessors, (7014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 7014 transitions. [2021-03-11 14:37:50,497 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 7014 transitions. Word has length 28 [2021-03-11 14:37:50,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:50,497 INFO L480 AbstractCegarLoop]: Abstraction has 1561 states and 7014 transitions. [2021-03-11 14:37:50,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 7014 transitions. [2021-03-11 14:37:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:50,499 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:50,499 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:50,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-03-11 14:37:50,499 INFO L428 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:50,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:50,500 INFO L82 PathProgramCache]: Analyzing trace with hash 68637930, now seen corresponding path program 217 times [2021-03-11 14:37:50,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:50,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548499455] [2021-03-11 14:37:50,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:50,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:50,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:50,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:50,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:50,514 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:50,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:50,521 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:50,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:50,533 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:50,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:50,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:50,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:50,566 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:50,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:50,591 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:50,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:50,639 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:50,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:50,674 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:50,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:50,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548499455] [2021-03-11 14:37:50,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:50,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:50,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63129983] [2021-03-11 14:37:50,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:50,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:50,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:50,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:50,707 INFO L87 Difference]: Start difference. First operand 1561 states and 7014 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:50,837 INFO L93 Difference]: Finished difference Result 2976 states and 11795 transitions. [2021-03-11 14:37:50,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:50,838 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:50,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:50,843 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:37:50,843 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:37:50,844 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:50,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:37:50,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1582. [2021-03-11 14:37:50,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.478810879190386) internal successors, (7081), 1581 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7081 transitions. [2021-03-11 14:37:50,893 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7081 transitions. Word has length 28 [2021-03-11 14:37:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:50,893 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7081 transitions. [2021-03-11 14:37:50,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:50,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7081 transitions. [2021-03-11 14:37:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:50,895 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:50,895 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:50,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-03-11 14:37:50,895 INFO L428 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:50,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash 813340428, now seen corresponding path program 218 times [2021-03-11 14:37:50,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:50,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925772721] [2021-03-11 14:37:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:50,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:50,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:50,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:50,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:50,913 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:50,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:50,922 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:50,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:50,933 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:50,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:50,948 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:50,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:50,967 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:50,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:50,992 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:50,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:51,040 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:51,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:51,077 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:51,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:51,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925772721] [2021-03-11 14:37:51,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:51,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:51,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847624607] [2021-03-11 14:37:51,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:51,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:51,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:51,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:51,110 INFO L87 Difference]: Start difference. First operand 1582 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:51,206 INFO L93 Difference]: Finished difference Result 2980 states and 11796 transitions. [2021-03-11 14:37:51,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:51,207 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:51,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:51,213 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:37:51,213 INFO L226 Difference]: Without dead ends: 2953 [2021-03-11 14:37:51,213 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 218.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:51,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-03-11 14:37:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1575. [2021-03-11 14:37:51,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.486022871664549) internal successors, (7061), 1574 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7061 transitions. [2021-03-11 14:37:51,262 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7061 transitions. Word has length 28 [2021-03-11 14:37:51,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:51,262 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7061 transitions. [2021-03-11 14:37:51,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7061 transitions. [2021-03-11 14:37:51,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:51,265 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:51,265 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:51,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-03-11 14:37:51,265 INFO L428 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:51,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:51,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1679578888, now seen corresponding path program 219 times [2021-03-11 14:37:51,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:51,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199885405] [2021-03-11 14:37:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:51,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:51,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:51,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:51,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:51,279 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:51,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:51,287 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:51,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:51,298 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:51,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:51,313 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:51,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:51,332 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:51,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:51,356 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:51,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:51,385 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:51,419 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:51,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:51,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199885405] [2021-03-11 14:37:51,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:51,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:51,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056772922] [2021-03-11 14:37:51,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:51,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:51,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:51,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:51,451 INFO L87 Difference]: Start difference. First operand 1575 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:51,568 INFO L93 Difference]: Finished difference Result 2973 states and 11783 transitions. [2021-03-11 14:37:51,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:51,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:51,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:51,574 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:37:51,574 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:37:51,574 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 218.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:37:51,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1581. [2021-03-11 14:37:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.4759493670886075) internal successors, (7072), 1580 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7072 transitions. [2021-03-11 14:37:51,621 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7072 transitions. Word has length 28 [2021-03-11 14:37:51,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:51,621 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7072 transitions. [2021-03-11 14:37:51,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7072 transitions. [2021-03-11 14:37:51,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:51,624 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:51,624 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:51,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-03-11 14:37:51,624 INFO L428 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:51,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:51,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1125983412, now seen corresponding path program 220 times [2021-03-11 14:37:51,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:51,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977959244] [2021-03-11 14:37:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:51,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:51,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:51,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:51,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:51,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:51,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:51,645 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:51,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:51,656 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:51,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:51,671 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:51,689 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:51,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:51,712 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:51,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:51,741 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:51,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:51,776 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:51,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:51,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977959244] [2021-03-11 14:37:51,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:51,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:51,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715966186] [2021-03-11 14:37:51,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:51,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:51,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:51,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:51,808 INFO L87 Difference]: Start difference. First operand 1581 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:51,931 INFO L93 Difference]: Finished difference Result 2975 states and 11781 transitions. [2021-03-11 14:37:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:51,931 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:51,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:51,937 INFO L225 Difference]: With dead ends: 2975 [2021-03-11 14:37:51,937 INFO L226 Difference]: Without dead ends: 2951 [2021-03-11 14:37:51,937 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 221.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-03-11 14:37:51,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1575. [2021-03-11 14:37:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.482210927573062) internal successors, (7055), 1574 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7055 transitions. [2021-03-11 14:37:51,983 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7055 transitions. Word has length 28 [2021-03-11 14:37:51,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:51,983 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7055 transitions. [2021-03-11 14:37:51,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7055 transitions. [2021-03-11 14:37:51,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:51,985 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:51,986 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:51,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-11 14:37:51,986 INFO L428 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:51,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:51,986 INFO L82 PathProgramCache]: Analyzing trace with hash -259744952, now seen corresponding path program 221 times [2021-03-11 14:37:51,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:51,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327970004] [2021-03-11 14:37:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:51,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:51,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:51,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:51,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:52,000 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:52,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:52,008 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:52,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:52,019 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:52,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:52,033 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:52,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:52,052 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:52,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:52,076 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:52,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:52,106 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:52,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:52,142 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:52,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:52,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327970004] [2021-03-11 14:37:52,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:52,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:52,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225242302] [2021-03-11 14:37:52,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:52,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:52,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:52,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:52,175 INFO L87 Difference]: Start difference. First operand 1575 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:52,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:52,271 INFO L93 Difference]: Finished difference Result 2985 states and 11800 transitions. [2021-03-11 14:37:52,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:52,272 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:52,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:52,277 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:37:52,277 INFO L226 Difference]: Without dead ends: 2965 [2021-03-11 14:37:52,277 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 197.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2021-03-11 14:37:52,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1585. [2021-03-11 14:37:52,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.4646464646464645) internal successors, (7072), 1584 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:52,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7072 transitions. [2021-03-11 14:37:52,323 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7072 transitions. Word has length 28 [2021-03-11 14:37:52,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:52,323 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7072 transitions. [2021-03-11 14:37:52,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:52,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7072 transitions. [2021-03-11 14:37:52,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:52,325 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:52,325 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:52,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-03-11 14:37:52,326 INFO L428 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:52,326 INFO L82 PathProgramCache]: Analyzing trace with hash 484957546, now seen corresponding path program 222 times [2021-03-11 14:37:52,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:52,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124039655] [2021-03-11 14:37:52,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:52,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:52,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:52,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:52,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:52,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:52,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:52,347 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:52,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:52,358 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:52,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:52,372 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:52,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:52,391 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:37:52,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:37:52,415 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:52,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:52,445 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:52,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:52,479 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:52,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:52,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124039655] [2021-03-11 14:37:52,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:52,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:52,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350831932] [2021-03-11 14:37:52,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:52,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:52,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:52,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:52,512 INFO L87 Difference]: Start difference. First operand 1585 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:52,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:52,652 INFO L93 Difference]: Finished difference Result 2983 states and 11788 transitions. [2021-03-11 14:37:52,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:52,652 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:52,658 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:37:52,658 INFO L226 Difference]: Without dead ends: 2947 [2021-03-11 14:37:52,658 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 223.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:52,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-03-11 14:37:52,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1567. [2021-03-11 14:37:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.491698595146871) internal successors, (7034), 1566 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:52,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7034 transitions. [2021-03-11 14:37:52,704 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7034 transitions. Word has length 28 [2021-03-11 14:37:52,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:52,704 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7034 transitions. [2021-03-11 14:37:52,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:52,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7034 transitions. [2021-03-11 14:37:52,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:52,706 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:52,706 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:52,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-03-11 14:37:52,707 INFO L428 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:52,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:52,707 INFO L82 PathProgramCache]: Analyzing trace with hash -437708336, now seen corresponding path program 223 times [2021-03-11 14:37:52,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:52,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218404861] [2021-03-11 14:37:52,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:52,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:52,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:52,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:52,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:52,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:52,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:52,728 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:52,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:52,739 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:52,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:52,753 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:52,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:52,772 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:52,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:52,810 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:52,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:52,859 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:52,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:52,894 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:52,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:52,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218404861] [2021-03-11 14:37:52,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:52,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:52,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218207686] [2021-03-11 14:37:52,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:52,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:52,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:52,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:52,927 INFO L87 Difference]: Start difference. First operand 1567 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:53,057 INFO L93 Difference]: Finished difference Result 2962 states and 11752 transitions. [2021-03-11 14:37:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:53,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:53,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:53,063 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:37:53,063 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:37:53,063 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 253.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:53,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:37:53,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1579. [2021-03-11 14:37:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.477186311787072) internal successors, (7065), 1578 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7065 transitions. [2021-03-11 14:37:53,110 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7065 transitions. Word has length 28 [2021-03-11 14:37:53,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:53,110 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7065 transitions. [2021-03-11 14:37:53,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7065 transitions. [2021-03-11 14:37:53,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:53,112 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:53,112 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:53,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-03-11 14:37:53,112 INFO L428 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:53,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:53,112 INFO L82 PathProgramCache]: Analyzing trace with hash 306994162, now seen corresponding path program 224 times [2021-03-11 14:37:53,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:53,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306738304] [2021-03-11 14:37:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:53,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:53,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:53,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:53,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:53,126 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:53,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:53,134 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:53,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:53,145 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:53,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:53,159 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:53,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:53,178 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:53,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:53,227 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:53,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:53,276 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:53,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:53,311 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:53,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:53,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306738304] [2021-03-11 14:37:53,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:53,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:53,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99439551] [2021-03-11 14:37:53,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:53,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:53,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:53,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:53,344 INFO L87 Difference]: Start difference. First operand 1579 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:53,441 INFO L93 Difference]: Finished difference Result 2966 states and 11753 transitions. [2021-03-11 14:37:53,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:53,442 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:53,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:53,447 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:37:53,447 INFO L226 Difference]: Without dead ends: 2939 [2021-03-11 14:37:53,447 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 229.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:53,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-03-11 14:37:53,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1572. [2021-03-11 14:37:53,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.485677912157861) internal successors, (7047), 1571 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7047 transitions. [2021-03-11 14:37:53,494 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7047 transitions. Word has length 28 [2021-03-11 14:37:53,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:53,494 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7047 transitions. [2021-03-11 14:37:53,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7047 transitions. [2021-03-11 14:37:53,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:53,496 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:53,496 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:53,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-03-11 14:37:53,496 INFO L428 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:53,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:53,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1711088200, now seen corresponding path program 225 times [2021-03-11 14:37:53,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:53,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937240437] [2021-03-11 14:37:53,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:53,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:53,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:53,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:53,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:53,510 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:53,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:53,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:53,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:53,528 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:53,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:53,543 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:53,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:53,562 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:53,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:53,600 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:53,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:53,628 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:53,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:53,663 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:53,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:53,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937240437] [2021-03-11 14:37:53,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:53,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:53,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870200140] [2021-03-11 14:37:53,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:53,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:53,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:53,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:53,697 INFO L87 Difference]: Start difference. First operand 1572 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:53,827 INFO L93 Difference]: Finished difference Result 2953 states and 11728 transitions. [2021-03-11 14:37:53,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:53,828 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:53,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:53,833 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:37:53,833 INFO L226 Difference]: Without dead ends: 2937 [2021-03-11 14:37:53,833 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 234.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:53,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-03-11 14:37:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1576. [2021-03-11 14:37:53,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.4787301587301585) internal successors, (7054), 1575 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7054 transitions. [2021-03-11 14:37:53,879 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7054 transitions. Word has length 28 [2021-03-11 14:37:53,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:53,879 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7054 transitions. [2021-03-11 14:37:53,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:53,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7054 transitions. [2021-03-11 14:37:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:53,881 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:53,881 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:53,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-03-11 14:37:53,882 INFO L428 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:53,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:53,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1139633394, now seen corresponding path program 226 times [2021-03-11 14:37:53,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:53,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965174151] [2021-03-11 14:37:53,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:53,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:53,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:53,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:53,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:53,895 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:53,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:53,903 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:53,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:53,914 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:53,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:53,929 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:53,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:53,947 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:53,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:53,986 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:53,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:54,015 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:54,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:54,050 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:54,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:54,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965174151] [2021-03-11 14:37:54,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:54,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:54,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037379263] [2021-03-11 14:37:54,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:54,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:54,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:54,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:54,084 INFO L87 Difference]: Start difference. First operand 1576 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:54,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:54,205 INFO L93 Difference]: Finished difference Result 2951 states and 11720 transitions. [2021-03-11 14:37:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:54,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:54,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:54,211 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:37:54,211 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:37:54,211 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:54,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:37:54,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1572. [2021-03-11 14:37:54,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.4831317632081475) internal successors, (7043), 1571 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7043 transitions. [2021-03-11 14:37:54,258 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7043 transitions. Word has length 28 [2021-03-11 14:37:54,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:54,258 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7043 transitions. [2021-03-11 14:37:54,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:54,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7043 transitions. [2021-03-11 14:37:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:54,260 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:54,260 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:54,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-03-11 14:37:54,260 INFO L428 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:54,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:54,260 INFO L82 PathProgramCache]: Analyzing trace with hash -228235640, now seen corresponding path program 227 times [2021-03-11 14:37:54,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:54,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828133537] [2021-03-11 14:37:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:54,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:54,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:54,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:54,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:54,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:54,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:54,282 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:54,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:54,293 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:54,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:54,308 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:54,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:54,326 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:54,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:54,365 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:54,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:54,409 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:54,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:54,445 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:54,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:54,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828133537] [2021-03-11 14:37:54,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:54,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:54,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138910659] [2021-03-11 14:37:54,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:54,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:54,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:54,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:54,478 INFO L87 Difference]: Start difference. First operand 1572 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:54,584 INFO L93 Difference]: Finished difference Result 2962 states and 11740 transitions. [2021-03-11 14:37:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:54,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:54,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:54,590 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:37:54,590 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:37:54,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 227.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:54,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:37:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1577. [2021-03-11 14:37:54,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.473984771573604) internal successors, (7051), 1576 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:54,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7051 transitions. [2021-03-11 14:37:54,636 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7051 transitions. Word has length 28 [2021-03-11 14:37:54,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:54,636 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7051 transitions. [2021-03-11 14:37:54,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:54,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7051 transitions. [2021-03-11 14:37:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:54,638 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:54,638 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:54,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-03-11 14:37:54,638 INFO L428 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:54,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:54,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1544392944, now seen corresponding path program 228 times [2021-03-11 14:37:54,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:54,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061876103] [2021-03-11 14:37:54,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:54,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:54,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:54,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:54,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:54,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:54,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:54,660 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:54,671 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:54,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:54,686 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:54,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:54,704 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:37:54,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:37:54,742 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:54,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:54,786 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:54,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:54,822 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:54,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:54,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:54,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061876103] [2021-03-11 14:37:54,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:54,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:54,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219798726] [2021-03-11 14:37:54,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:54,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:54,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:54,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:54,855 INFO L87 Difference]: Start difference. First operand 1577 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:54,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:54,983 INFO L93 Difference]: Finished difference Result 2956 states and 11724 transitions. [2021-03-11 14:37:54,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:54,984 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:54,989 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:37:54,989 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:37:54,989 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 250.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:37:55,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1567. [2021-03-11 14:37:55,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.488505747126437) internal successors, (7029), 1566 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7029 transitions. [2021-03-11 14:37:55,035 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7029 transitions. Word has length 28 [2021-03-11 14:37:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:55,035 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7029 transitions. [2021-03-11 14:37:55,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7029 transitions. [2021-03-11 14:37:55,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:55,037 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:55,037 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:55,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-03-11 14:37:55,037 INFO L428 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:55,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:55,038 INFO L82 PathProgramCache]: Analyzing trace with hash -427205232, now seen corresponding path program 229 times [2021-03-11 14:37:55,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:55,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95521539] [2021-03-11 14:37:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:55,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:55,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:55,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:55,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:55,052 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:55,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:55,059 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:55,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:55,070 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:55,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:55,085 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:55,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:55,104 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:55,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:55,127 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:55,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:55,157 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:55,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:55,192 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:55,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:55,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95521539] [2021-03-11 14:37:55,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:55,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:55,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096078444] [2021-03-11 14:37:55,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:55,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:55,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:55,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:55,226 INFO L87 Difference]: Start difference. First operand 1567 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:55,351 INFO L93 Difference]: Finished difference Result 2954 states and 11732 transitions. [2021-03-11 14:37:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:55,352 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:55,357 INFO L225 Difference]: With dead ends: 2954 [2021-03-11 14:37:55,357 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:37:55,357 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 222.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:37:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1577. [2021-03-11 14:37:55,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.476522842639594) internal successors, (7055), 1576 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7055 transitions. [2021-03-11 14:37:55,404 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7055 transitions. Word has length 28 [2021-03-11 14:37:55,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:55,404 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7055 transitions. [2021-03-11 14:37:55,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7055 transitions. [2021-03-11 14:37:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:55,407 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:55,407 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:55,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-03-11 14:37:55,407 INFO L428 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:55,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:55,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1062199764, now seen corresponding path program 230 times [2021-03-11 14:37:55,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:55,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341543237] [2021-03-11 14:37:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:55,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:55,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:55,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:55,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:55,420 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:55,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:55,428 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:55,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:55,439 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:55,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:55,454 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:55,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:55,472 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:55,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:55,495 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:55,525 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:55,561 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:55,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:55,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341543237] [2021-03-11 14:37:55,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:55,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:55,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320425764] [2021-03-11 14:37:55,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:55,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:55,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:55,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:55,595 INFO L87 Difference]: Start difference. First operand 1577 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:55,741 INFO L93 Difference]: Finished difference Result 2956 states and 11730 transitions. [2021-03-11 14:37:55,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:55,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:55,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:55,747 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:37:55,747 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:37:55,747 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 225.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:55,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:37:55,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1571. [2021-03-11 14:37:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484076433121019) internal successors, (7040), 1570 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7040 transitions. [2021-03-11 14:37:55,793 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7040 transitions. Word has length 28 [2021-03-11 14:37:55,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:55,793 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7040 transitions. [2021-03-11 14:37:55,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:55,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7040 transitions. [2021-03-11 14:37:55,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:55,795 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:55,795 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:55,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-03-11 14:37:55,795 INFO L428 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:55,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:55,796 INFO L82 PathProgramCache]: Analyzing trace with hash 110650346, now seen corresponding path program 231 times [2021-03-11 14:37:55,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:55,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201210841] [2021-03-11 14:37:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:55,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:55,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:55,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:55,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:55,809 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:55,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:55,816 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:55,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:55,828 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:55,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:55,842 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:55,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:55,861 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:55,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:55,884 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:55,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:55,912 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:55,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:55,947 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:55,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:55,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201210841] [2021-03-11 14:37:55,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:55,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:55,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448156682] [2021-03-11 14:37:55,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:55,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:55,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:55,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:55,982 INFO L87 Difference]: Start difference. First operand 1571 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:56,115 INFO L93 Difference]: Finished difference Result 2948 states and 11714 transitions. [2021-03-11 14:37:56,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:56,115 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:56,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:56,121 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:37:56,121 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:37:56,121 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:37:56,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1575. [2021-03-11 14:37:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.47712833545108) internal successors, (7047), 1574 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7047 transitions. [2021-03-11 14:37:56,168 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7047 transitions. Word has length 28 [2021-03-11 14:37:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:56,168 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7047 transitions. [2021-03-11 14:37:56,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7047 transitions. [2021-03-11 14:37:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:56,170 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:56,170 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:56,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-03-11 14:37:56,171 INFO L428 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:56,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:56,171 INFO L82 PathProgramCache]: Analyzing trace with hash -460804460, now seen corresponding path program 232 times [2021-03-11 14:37:56,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:56,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114388256] [2021-03-11 14:37:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:56,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:56,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:56,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:56,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:56,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:56,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:56,193 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:56,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:56,205 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:56,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:56,219 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:56,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:56,238 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:56,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:56,261 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:56,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:56,289 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:56,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:56,325 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:56,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:56,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114388256] [2021-03-11 14:37:56,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:56,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:56,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295495400] [2021-03-11 14:37:56,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:56,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:56,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:56,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:56,358 INFO L87 Difference]: Start difference. First operand 1575 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:56,499 INFO L93 Difference]: Finished difference Result 2946 states and 11706 transitions. [2021-03-11 14:37:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:56,500 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:56,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:56,505 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:37:56,505 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:37:56,505 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:37:56,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1571. [2021-03-11 14:37:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4815286624203825) internal successors, (7036), 1570 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7036 transitions. [2021-03-11 14:37:56,551 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7036 transitions. Word has length 28 [2021-03-11 14:37:56,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:56,551 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7036 transitions. [2021-03-11 14:37:56,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7036 transitions. [2021-03-11 14:37:56,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:56,553 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:56,553 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:56,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-03-11 14:37:56,554 INFO L428 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:56,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:56,554 INFO L82 PathProgramCache]: Analyzing trace with hash 526969962, now seen corresponding path program 233 times [2021-03-11 14:37:56,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:56,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490340398] [2021-03-11 14:37:56,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:56,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:56,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:56,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:56,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:56,568 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:56,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:56,576 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:56,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:56,587 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:56,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:56,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:56,620 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:56,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:56,643 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:56,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:56,688 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:56,724 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:56,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:56,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490340398] [2021-03-11 14:37:56,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:56,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:56,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357621883] [2021-03-11 14:37:56,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:56,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:56,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:56,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:56,757 INFO L87 Difference]: Start difference. First operand 1571 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:56,883 INFO L93 Difference]: Finished difference Result 2952 states and 11718 transitions. [2021-03-11 14:37:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:56,889 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:37:56,889 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:37:56,889 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:37:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1575. [2021-03-11 14:37:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.474587039390089) internal successors, (7043), 1574 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7043 transitions. [2021-03-11 14:37:56,935 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7043 transitions. Word has length 28 [2021-03-11 14:37:56,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:56,935 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7043 transitions. [2021-03-11 14:37:56,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7043 transitions. [2021-03-11 14:37:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:56,937 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:56,937 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:56,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-03-11 14:37:56,937 INFO L428 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:56,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1533889840, now seen corresponding path program 234 times [2021-03-11 14:37:56,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:56,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467589716] [2021-03-11 14:37:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:56,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:56,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:56,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:56,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:56,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:56,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:56,959 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:56,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:56,970 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:56,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:56,985 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:56,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:57,004 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:37:57,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:37:57,027 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:57,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:57,072 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:57,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:57,108 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:57,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:57,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:57,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467589716] [2021-03-11 14:37:57,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:57,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:57,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994754002] [2021-03-11 14:37:57,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:57,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:57,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:57,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:57,142 INFO L87 Difference]: Start difference. First operand 1575 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:57,271 INFO L93 Difference]: Finished difference Result 2948 states and 11706 transitions. [2021-03-11 14:37:57,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:57,271 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:57,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:57,276 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:37:57,276 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:37:57,277 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:57,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:37:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1567. [2021-03-11 14:37:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.485951468710089) internal successors, (7025), 1566 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:57,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7025 transitions. [2021-03-11 14:37:57,322 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7025 transitions. Word has length 28 [2021-03-11 14:37:57,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:57,323 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7025 transitions. [2021-03-11 14:37:57,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7025 transitions. [2021-03-11 14:37:57,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:57,325 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:57,325 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:57,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-03-11 14:37:57,325 INFO L428 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:57,325 INFO L82 PathProgramCache]: Analyzing trace with hash 328000370, now seen corresponding path program 235 times [2021-03-11 14:37:57,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:57,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186376265] [2021-03-11 14:37:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:57,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:57,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:57,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:57,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:57,340 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:57,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:57,348 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:57,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:57,359 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:57,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:57,374 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:57,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:57,393 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:57,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:57,431 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:57,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:57,463 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:57,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:57,499 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:57,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:57,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186376265] [2021-03-11 14:37:57,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:57,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:57,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134152283] [2021-03-11 14:37:57,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:57,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:57,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:57,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:57,533 INFO L87 Difference]: Start difference. First operand 1567 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:57,632 INFO L93 Difference]: Finished difference Result 2977 states and 11774 transitions. [2021-03-11 14:37:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:57,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:57,638 INFO L225 Difference]: With dead ends: 2977 [2021-03-11 14:37:57,638 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:37:57,638 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 215.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:37:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1583. [2021-03-11 14:37:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.4639696586599245) internal successors, (7062), 1582 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7062 transitions. [2021-03-11 14:37:57,686 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7062 transitions. Word has length 28 [2021-03-11 14:37:57,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:57,686 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7062 transitions. [2021-03-11 14:37:57,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7062 transitions. [2021-03-11 14:37:57,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:57,688 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:57,689 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:57,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-03-11 14:37:57,689 INFO L428 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:57,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:57,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1072702868, now seen corresponding path program 236 times [2021-03-11 14:37:57,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:57,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889209683] [2021-03-11 14:37:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:57,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:57,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:57,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:57,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:57,703 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:57,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:57,711 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:57,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:57,722 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:57,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:57,737 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:57,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:57,757 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:57,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:57,796 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:37:57,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:37:57,827 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:57,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:57,864 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:57,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:57,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889209683] [2021-03-11 14:37:57,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:57,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:57,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189757192] [2021-03-11 14:37:57,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:57,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:57,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:57,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:57,898 INFO L87 Difference]: Start difference. First operand 1583 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:58,027 INFO L93 Difference]: Finished difference Result 2975 states and 11762 transitions. [2021-03-11 14:37:58,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:58,027 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:58,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:58,033 INFO L225 Difference]: With dead ends: 2975 [2021-03-11 14:37:58,033 INFO L226 Difference]: Without dead ends: 2947 [2021-03-11 14:37:58,033 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:58,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-03-11 14:37:58,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1573. [2021-03-11 14:37:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.477735368956743) internal successors, (7039), 1572 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7039 transitions. [2021-03-11 14:37:58,080 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7039 transitions. Word has length 28 [2021-03-11 14:37:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:58,080 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7039 transitions. [2021-03-11 14:37:58,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7039 transitions. [2021-03-11 14:37:58,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:58,082 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:58,082 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:58,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-03-11 14:37:58,082 INFO L428 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:58,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:58,083 INFO L82 PathProgramCache]: Analyzing trace with hash 865855948, now seen corresponding path program 237 times [2021-03-11 14:37:58,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:58,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136084925] [2021-03-11 14:37:58,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:58,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:58,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:58,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:58,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:58,096 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:58,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:58,104 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:58,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:58,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:58,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:58,132 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:58,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:58,152 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:58,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:58,190 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:58,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:58,235 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:37:58,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:37:58,272 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:58,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136084925] [2021-03-11 14:37:58,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:58,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:58,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897813049] [2021-03-11 14:37:58,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:58,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:58,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:58,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:58,306 INFO L87 Difference]: Start difference. First operand 1573 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:58,407 INFO L93 Difference]: Finished difference Result 2968 states and 11747 transitions. [2021-03-11 14:37:58,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:58,407 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:58,413 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:37:58,413 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:37:58,413 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 233.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:58,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:37:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1578. [2021-03-11 14:37:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.46861128725428) internal successors, (7047), 1577 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7047 transitions. [2021-03-11 14:37:58,459 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7047 transitions. Word has length 28 [2021-03-11 14:37:58,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:58,459 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7047 transitions. [2021-03-11 14:37:58,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7047 transitions. [2021-03-11 14:37:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:58,462 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:58,462 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:58,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-03-11 14:37:58,462 INFO L428 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:58,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:58,462 INFO L82 PathProgramCache]: Analyzing trace with hash -450301356, now seen corresponding path program 238 times [2021-03-11 14:37:58,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:58,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112267490] [2021-03-11 14:37:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:58,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:58,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:58,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:58,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:58,476 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:58,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:58,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:58,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:58,495 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:58,510 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:58,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:58,530 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:58,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:58,568 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:37:58,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:37:58,613 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:58,648 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:58,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:58,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112267490] [2021-03-11 14:37:58,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:58,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:58,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823024348] [2021-03-11 14:37:58,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:58,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:58,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:58,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:58,682 INFO L87 Difference]: Start difference. First operand 1578 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:58,812 INFO L93 Difference]: Finished difference Result 2962 states and 11731 transitions. [2021-03-11 14:37:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:58,818 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:37:58,818 INFO L226 Difference]: Without dead ends: 2943 [2021-03-11 14:37:58,818 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 254.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-03-11 14:37:58,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1573. [2021-03-11 14:37:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.474554707379135) internal successors, (7034), 1572 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7034 transitions. [2021-03-11 14:37:58,864 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7034 transitions. Word has length 28 [2021-03-11 14:37:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:58,864 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7034 transitions. [2021-03-11 14:37:58,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7034 transitions. [2021-03-11 14:37:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:58,866 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:58,866 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:58,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-03-11 14:37:58,866 INFO L428 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:58,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1073467892, now seen corresponding path program 239 times [2021-03-11 14:37:58,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:58,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933276870] [2021-03-11 14:37:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:58,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:58,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:58,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:58,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:58,880 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:58,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:58,888 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:58,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:58,899 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:58,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:58,914 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:58,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:58,933 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:58,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:58,972 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:58,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:59,018 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:59,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:59,055 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:59,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:59,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933276870] [2021-03-11 14:37:59,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:59,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:59,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729491422] [2021-03-11 14:37:59,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:59,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:59,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:59,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:59,090 INFO L87 Difference]: Start difference. First operand 1573 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:59,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:59,253 INFO L93 Difference]: Finished difference Result 2963 states and 11734 transitions. [2021-03-11 14:37:59,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:59,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:59,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:59,259 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:37:59,259 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:37:59,259 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 292.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:59,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:37:59,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1577. [2021-03-11 14:37:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.467639593908629) internal successors, (7041), 1576 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7041 transitions. [2021-03-11 14:37:59,304 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7041 transitions. Word has length 28 [2021-03-11 14:37:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:59,305 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7041 transitions. [2021-03-11 14:37:59,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7041 transitions. [2021-03-11 14:37:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:59,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:59,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:59,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-03-11 14:37:59,307 INFO L428 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:59,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:59,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1160639602, now seen corresponding path program 240 times [2021-03-11 14:37:59,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:59,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403427920] [2021-03-11 14:37:59,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:59,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:59,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:59,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:59,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:59,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:59,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:59,334 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:59,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:59,345 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:59,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:59,359 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:37:59,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:37:59,378 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:59,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:59,415 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:37:59,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:37:59,459 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:59,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:59,494 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:59,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:59,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403427920] [2021-03-11 14:37:59,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:59,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:59,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988109657] [2021-03-11 14:37:59,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:59,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:59,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:59,526 INFO L87 Difference]: Start difference. First operand 1577 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:59,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:37:59,674 INFO L93 Difference]: Finished difference Result 2959 states and 11722 transitions. [2021-03-11 14:37:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:37:59,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:37:59,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:37:59,680 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:37:59,680 INFO L226 Difference]: Without dead ends: 2923 [2021-03-11 14:37:59,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:37:59,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-03-11 14:37:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1555. [2021-03-11 14:37:59,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 4.502574002574002) internal successors, (6997), 1554 states have internal predecessors, (6997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 6997 transitions. [2021-03-11 14:37:59,726 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 6997 transitions. Word has length 28 [2021-03-11 14:37:59,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:37:59,726 INFO L480 AbstractCegarLoop]: Abstraction has 1555 states and 6997 transitions. [2021-03-11 14:37:59,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:37:59,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 6997 transitions. [2021-03-11 14:37:59,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:37:59,729 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:37:59,729 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:37:59,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-03-11 14:37:59,729 INFO L428 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:37:59,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:37:59,729 INFO L82 PathProgramCache]: Analyzing trace with hash 424017834, now seen corresponding path program 241 times [2021-03-11 14:37:59,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:37:59,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010348484] [2021-03-11 14:37:59,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:37:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:37:59,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:59,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:37:59,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:37:59,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:37:59,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:37:59,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:37:59,753 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:37:59,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:37:59,764 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:37:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:37:59,778 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:37:59,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:37:59,810 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:37:59,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:37:59,849 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:37:59,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:37:59,878 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:37:59,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:37:59,913 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:37:59,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:37:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:37:59,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010348484] [2021-03-11 14:37:59,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:37:59,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:37:59,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826893589] [2021-03-11 14:37:59,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:37:59,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:37:59,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:37:59,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:37:59,946 INFO L87 Difference]: Start difference. First operand 1555 states and 6997 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:00,104 INFO L93 Difference]: Finished difference Result 2936 states and 11714 transitions. [2021-03-11 14:38:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:00,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:00,110 INFO L225 Difference]: With dead ends: 2936 [2021-03-11 14:38:00,110 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:38:00,110 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:38:00,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1576. [2021-03-11 14:38:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.494603174603174) internal successors, (7079), 1575 states have internal predecessors, (7079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7079 transitions. [2021-03-11 14:38:00,157 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7079 transitions. Word has length 28 [2021-03-11 14:38:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:00,157 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7079 transitions. [2021-03-11 14:38:00,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7079 transitions. [2021-03-11 14:38:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:00,159 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:00,159 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:00,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-03-11 14:38:00,159 INFO L428 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:00,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1168720332, now seen corresponding path program 242 times [2021-03-11 14:38:00,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:00,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147716620] [2021-03-11 14:38:00,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:00,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:00,177 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:00,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:00,185 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:00,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:00,196 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:00,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:00,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:00,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:00,242 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:00,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:00,282 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:00,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:00,312 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:00,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:00,347 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:00,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:00,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147716620] [2021-03-11 14:38:00,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:00,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:00,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076198068] [2021-03-11 14:38:00,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:00,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:00,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:00,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:00,380 INFO L87 Difference]: Start difference. First operand 1576 states and 7079 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:00,510 INFO L93 Difference]: Finished difference Result 2937 states and 11711 transitions. [2021-03-11 14:38:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:00,511 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:00,516 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:38:00,516 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:38:00,516 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:00,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:38:00,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1571. [2021-03-11 14:38:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.5) internal successors, (7065), 1570 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7065 transitions. [2021-03-11 14:38:00,562 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7065 transitions. Word has length 28 [2021-03-11 14:38:00,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:00,563 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7065 transitions. [2021-03-11 14:38:00,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7065 transitions. [2021-03-11 14:38:00,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:00,565 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:00,565 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:00,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-03-11 14:38:00,565 INFO L428 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:00,565 INFO L82 PathProgramCache]: Analyzing trace with hash 2034958792, now seen corresponding path program 243 times [2021-03-11 14:38:00,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:00,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51697235] [2021-03-11 14:38:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:00,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:00,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:00,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:00,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:00,580 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:00,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:00,587 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:00,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:00,598 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:00,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:00,613 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:00,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:00,645 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:00,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:00,685 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:00,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:00,731 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:00,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:00,766 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:00,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:00,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51697235] [2021-03-11 14:38:00,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:00,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:00,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300595764] [2021-03-11 14:38:00,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:00,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:00,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:00,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:00,799 INFO L87 Difference]: Start difference. First operand 1571 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:00,945 INFO L93 Difference]: Finished difference Result 2941 states and 11718 transitions. [2021-03-11 14:38:00,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:00,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:00,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:00,951 INFO L225 Difference]: With dead ends: 2941 [2021-03-11 14:38:00,951 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:38:00,952 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 266.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:00,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:38:00,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1577. [2021-03-11 14:38:00,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.48984771573604) internal successors, (7076), 1576 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7076 transitions. [2021-03-11 14:38:00,998 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7076 transitions. Word has length 28 [2021-03-11 14:38:00,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:00,998 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7076 transitions. [2021-03-11 14:38:00,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7076 transitions. [2021-03-11 14:38:01,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:01,000 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:01,000 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:01,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-11 14:38:01,000 INFO L428 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:01,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:01,001 INFO L82 PathProgramCache]: Analyzing trace with hash -770603508, now seen corresponding path program 244 times [2021-03-11 14:38:01,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:01,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144343914] [2021-03-11 14:38:01,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:01,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:01,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:01,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:01,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:01,019 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:01,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:01,027 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:01,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:01,039 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:01,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:01,054 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:01,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:01,093 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:01,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:01,133 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:01,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:01,180 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:01,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:01,217 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:01,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:01,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:01,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144343914] [2021-03-11 14:38:01,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:01,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:01,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036894854] [2021-03-11 14:38:01,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:01,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:01,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:01,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:01,250 INFO L87 Difference]: Start difference. First operand 1577 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:01,358 INFO L93 Difference]: Finished difference Result 2946 states and 11722 transitions. [2021-03-11 14:38:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:01,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:01,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:01,364 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:38:01,364 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:38:01,364 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 253.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:38:01,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1571. [2021-03-11 14:38:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.496178343949045) internal successors, (7059), 1570 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7059 transitions. [2021-03-11 14:38:01,413 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7059 transitions. Word has length 28 [2021-03-11 14:38:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:01,413 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7059 transitions. [2021-03-11 14:38:01,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7059 transitions. [2021-03-11 14:38:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:01,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:01,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:01,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-03-11 14:38:01,415 INFO L428 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:01,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:01,415 INFO L82 PathProgramCache]: Analyzing trace with hash 95634952, now seen corresponding path program 245 times [2021-03-11 14:38:01,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:01,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996766785] [2021-03-11 14:38:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:01,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:01,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:01,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:01,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:01,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:01,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:01,438 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:01,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:01,450 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:01,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:01,466 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:01,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:01,498 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:01,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:01,538 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:01,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:01,587 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:01,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:01,623 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:01,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:01,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996766785] [2021-03-11 14:38:01,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:01,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:01,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487010004] [2021-03-11 14:38:01,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:01,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:01,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:01,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:01,657 INFO L87 Difference]: Start difference. First operand 1571 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:01,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:01,795 INFO L93 Difference]: Finished difference Result 2944 states and 11719 transitions. [2021-03-11 14:38:01,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:01,796 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:01,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:01,801 INFO L225 Difference]: With dead ends: 2944 [2021-03-11 14:38:01,801 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:38:01,801 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 272.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:01,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:38:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1578. [2021-03-11 14:38:01,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.484464172479392) internal successors, (7072), 1577 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7072 transitions. [2021-03-11 14:38:01,848 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7072 transitions. Word has length 28 [2021-03-11 14:38:01,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:01,849 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7072 transitions. [2021-03-11 14:38:01,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:01,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7072 transitions. [2021-03-11 14:38:01,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:01,851 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:01,851 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:01,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-03-11 14:38:01,851 INFO L428 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:01,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:01,851 INFO L82 PathProgramCache]: Analyzing trace with hash 840337450, now seen corresponding path program 246 times [2021-03-11 14:38:01,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:01,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419714872] [2021-03-11 14:38:01,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:01,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:01,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:01,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:01,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:01,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:01,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:01,873 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:01,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:01,884 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:01,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:01,899 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:01,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:01,931 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:01,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:01,972 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:01,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:02,022 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:02,058 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:02,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:02,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:02,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419714872] [2021-03-11 14:38:02,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:02,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:02,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281532838] [2021-03-11 14:38:02,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:02,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:02,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:02,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:02,092 INFO L87 Difference]: Start difference. First operand 1578 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:02,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:02,215 INFO L93 Difference]: Finished difference Result 2948 states and 11720 transitions. [2021-03-11 14:38:02,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:02,216 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:02,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:02,221 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:38:02,221 INFO L226 Difference]: Without dead ends: 2915 [2021-03-11 14:38:02,222 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:02,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2021-03-11 14:38:02,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1565. [2021-03-11 14:38:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.503196930946292) internal successors, (7043), 1564 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:02,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7043 transitions. [2021-03-11 14:38:02,268 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7043 transitions. Word has length 28 [2021-03-11 14:38:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:02,268 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7043 transitions. [2021-03-11 14:38:02,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7043 transitions. [2021-03-11 14:38:02,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:02,270 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:02,270 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:02,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-03-11 14:38:02,270 INFO L428 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:02,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:02,271 INFO L82 PathProgramCache]: Analyzing trace with hash 216894948, now seen corresponding path program 247 times [2021-03-11 14:38:02,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:02,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998763633] [2021-03-11 14:38:02,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:02,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:02,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:02,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:02,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:02,286 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:02,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:02,294 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:02,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:02,305 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:02,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:02,320 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:02,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:02,351 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:02,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:02,375 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:02,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:02,405 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:02,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:02,440 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:02,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:02,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998763633] [2021-03-11 14:38:02,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:02,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:02,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045468799] [2021-03-11 14:38:02,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:02,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:02,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:02,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:02,474 INFO L87 Difference]: Start difference. First operand 1565 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:02,622 INFO L93 Difference]: Finished difference Result 2923 states and 11678 transitions. [2021-03-11 14:38:02,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:02,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:02,628 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:38:02,628 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:38:02,628 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:38:02,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1574. [2021-03-11 14:38:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.492689129052765) internal successors, (7067), 1573 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7067 transitions. [2021-03-11 14:38:02,675 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7067 transitions. Word has length 28 [2021-03-11 14:38:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:02,675 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7067 transitions. [2021-03-11 14:38:02,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7067 transitions. [2021-03-11 14:38:02,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:02,678 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:02,678 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:02,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-03-11 14:38:02,678 INFO L428 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:02,678 INFO L82 PathProgramCache]: Analyzing trace with hash 961597446, now seen corresponding path program 248 times [2021-03-11 14:38:02,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:02,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446377719] [2021-03-11 14:38:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:02,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:02,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:02,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:02,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:02,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:02,702 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:02,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:02,713 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:02,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:02,728 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:02,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:02,760 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:02,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:02,785 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:02,814 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:02,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:02,850 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:02,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:02,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446377719] [2021-03-11 14:38:02,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:02,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:02,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32435130] [2021-03-11 14:38:02,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:02,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:02,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:02,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:02,885 INFO L87 Difference]: Start difference. First operand 1574 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:03,031 INFO L93 Difference]: Finished difference Result 2924 states and 11675 transitions. [2021-03-11 14:38:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:03,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:03,038 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:38:03,038 INFO L226 Difference]: Without dead ends: 2903 [2021-03-11 14:38:03,038 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-03-11 14:38:03,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1569. [2021-03-11 14:38:03,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.498724489795919) internal successors, (7054), 1568 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7054 transitions. [2021-03-11 14:38:03,088 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:03,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:03,088 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7054 transitions. [2021-03-11 14:38:03,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7054 transitions. [2021-03-11 14:38:03,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:03,091 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:03,091 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:03,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-03-11 14:38:03,091 INFO L428 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:03,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:03,091 INFO L82 PathProgramCache]: Analyzing trace with hash -318334854, now seen corresponding path program 249 times [2021-03-11 14:38:03,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:03,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987606082] [2021-03-11 14:38:03,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:03,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:03,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:03,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:03,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:03,109 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:03,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:03,117 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:03,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:03,128 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:03,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:03,143 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:03,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:03,175 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:03,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:03,199 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:03,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:03,229 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:03,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:03,265 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:03,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:03,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987606082] [2021-03-11 14:38:03,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:03,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:03,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625341503] [2021-03-11 14:38:03,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:03,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:03,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:03,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:03,299 INFO L87 Difference]: Start difference. First operand 1569 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:03,439 INFO L93 Difference]: Finished difference Result 2920 states and 11667 transitions. [2021-03-11 14:38:03,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:03,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:03,444 INFO L225 Difference]: With dead ends: 2920 [2021-03-11 14:38:03,445 INFO L226 Difference]: Without dead ends: 2905 [2021-03-11 14:38:03,445 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:03,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-03-11 14:38:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 1573. [2021-03-11 14:38:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.491730279898219) internal successors, (7061), 1572 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7061 transitions. [2021-03-11 14:38:03,491 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7061 transitions. Word has length 28 [2021-03-11 14:38:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:03,491 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7061 transitions. [2021-03-11 14:38:03,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7061 transitions. [2021-03-11 14:38:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:03,494 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:03,494 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:03,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-03-11 14:38:03,494 INFO L428 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:03,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:03,494 INFO L82 PathProgramCache]: Analyzing trace with hash -145087162, now seen corresponding path program 250 times [2021-03-11 14:38:03,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:03,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527266452] [2021-03-11 14:38:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:03,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:03,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:03,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:03,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:03,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:03,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:03,520 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:03,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:03,533 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:03,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:03,552 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:03,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:03,589 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:03,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:03,613 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:03,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:03,643 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:03,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:03,679 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:03,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:03,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527266452] [2021-03-11 14:38:03,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:03,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:03,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551481930] [2021-03-11 14:38:03,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:03,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:03,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:03,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:03,712 INFO L87 Difference]: Start difference. First operand 1573 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:03,851 INFO L93 Difference]: Finished difference Result 2919 states and 11661 transitions. [2021-03-11 14:38:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:03,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:03,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:03,857 INFO L225 Difference]: With dead ends: 2919 [2021-03-11 14:38:03,857 INFO L226 Difference]: Without dead ends: 2901 [2021-03-11 14:38:03,857 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2021-03-11 14:38:03,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1569. [2021-03-11 14:38:03,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.496173469387755) internal successors, (7050), 1568 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7050 transitions. [2021-03-11 14:38:03,903 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7050 transitions. Word has length 28 [2021-03-11 14:38:03,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:03,903 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7050 transitions. [2021-03-11 14:38:03,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:03,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7050 transitions. [2021-03-11 14:38:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:03,905 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:03,905 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:03,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-11 14:38:03,905 INFO L428 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:03,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:03,906 INFO L82 PathProgramCache]: Analyzing trace with hash 2037308602, now seen corresponding path program 251 times [2021-03-11 14:38:03,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:03,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326872708] [2021-03-11 14:38:03,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:03,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:03,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:03,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:03,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:03,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:03,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:03,927 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:03,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:03,939 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:03,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:03,954 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:03,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:03,986 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:03,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:04,010 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:04,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:04,039 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:04,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:04,075 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:04,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:04,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:04,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326872708] [2021-03-11 14:38:04,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:04,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:04,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31828338] [2021-03-11 14:38:04,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:04,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:04,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:04,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:04,108 INFO L87 Difference]: Start difference. First operand 1569 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:04,266 INFO L93 Difference]: Finished difference Result 2922 states and 11667 transitions. [2021-03-11 14:38:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:04,272 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:38:04,272 INFO L226 Difference]: Without dead ends: 2906 [2021-03-11 14:38:04,272 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:04,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2021-03-11 14:38:04,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1573. [2021-03-11 14:38:04,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.489185750636132) internal successors, (7057), 1572 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7057 transitions. [2021-03-11 14:38:04,318 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7057 transitions. Word has length 28 [2021-03-11 14:38:04,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:04,318 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7057 transitions. [2021-03-11 14:38:04,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:04,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7057 transitions. [2021-03-11 14:38:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:04,320 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:04,320 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:04,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-03-11 14:38:04,320 INFO L428 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:04,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:04,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1465853796, now seen corresponding path program 252 times [2021-03-11 14:38:04,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:04,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882031742] [2021-03-11 14:38:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:04,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:04,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:04,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:04,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:04,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:04,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:04,342 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:04,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:04,353 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:04,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:04,368 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:04,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:04,400 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:04,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:04,425 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:04,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:04,454 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:04,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:04,489 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:04,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:04,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882031742] [2021-03-11 14:38:04,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:04,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:04,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782999518] [2021-03-11 14:38:04,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:04,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:04,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:04,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:04,523 INFO L87 Difference]: Start difference. First operand 1573 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:04,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:04,674 INFO L93 Difference]: Finished difference Result 2920 states and 11659 transitions. [2021-03-11 14:38:04,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:04,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:04,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:04,679 INFO L225 Difference]: With dead ends: 2920 [2021-03-11 14:38:04,679 INFO L226 Difference]: Without dead ends: 2898 [2021-03-11 14:38:04,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:04,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-03-11 14:38:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 1565. [2021-03-11 14:38:04,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.500639386189258) internal successors, (7039), 1564 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7039 transitions. [2021-03-11 14:38:04,726 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7039 transitions. Word has length 28 [2021-03-11 14:38:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:04,726 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7039 transitions. [2021-03-11 14:38:04,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7039 transitions. [2021-03-11 14:38:04,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:04,728 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:04,728 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:04,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-03-11 14:38:04,728 INFO L428 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:04,728 INFO L82 PathProgramCache]: Analyzing trace with hash 227398052, now seen corresponding path program 253 times [2021-03-11 14:38:04,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:04,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046468003] [2021-03-11 14:38:04,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:04,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:04,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:04,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:04,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:04,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:04,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:04,753 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:04,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:04,765 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:04,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:04,780 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:04,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:04,812 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:04,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:04,850 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:04,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:04,897 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:04,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:04,933 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:04,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:04,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046468003] [2021-03-11 14:38:04,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:04,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:04,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491084529] [2021-03-11 14:38:04,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:04,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:04,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:04,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:04,968 INFO L87 Difference]: Start difference. First operand 1565 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:05,129 INFO L93 Difference]: Finished difference Result 2935 states and 11697 transitions. [2021-03-11 14:38:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:05,135 INFO L225 Difference]: With dead ends: 2935 [2021-03-11 14:38:05,135 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:38:05,135 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 270.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:38:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1576. [2021-03-11 14:38:05,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.487619047619048) internal successors, (7068), 1575 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:05,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7068 transitions. [2021-03-11 14:38:05,182 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7068 transitions. Word has length 28 [2021-03-11 14:38:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:05,182 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7068 transitions. [2021-03-11 14:38:05,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7068 transitions. [2021-03-11 14:38:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:05,184 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:05,184 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:05,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-03-11 14:38:05,184 INFO L428 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:05,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1716803048, now seen corresponding path program 254 times [2021-03-11 14:38:05,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:05,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664238793] [2021-03-11 14:38:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:05,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:05,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:05,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:05,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:05,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:05,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:05,206 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:05,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:05,218 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:05,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:05,233 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:05,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:05,265 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:05,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:05,304 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:05,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:05,352 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:05,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:05,389 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:05,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:05,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664238793] [2021-03-11 14:38:05,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:05,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:05,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148083564] [2021-03-11 14:38:05,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:05,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:05,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:05,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:05,423 INFO L87 Difference]: Start difference. First operand 1576 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:05,533 INFO L93 Difference]: Finished difference Result 2940 states and 11701 transitions. [2021-03-11 14:38:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:05,533 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:05,538 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:38:05,538 INFO L226 Difference]: Without dead ends: 2914 [2021-03-11 14:38:05,539 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-03-11 14:38:05,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1570. [2021-03-11 14:38:05,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.494582536647546) internal successors, (7052), 1569 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:05,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7052 transitions. [2021-03-11 14:38:05,585 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7052 transitions. Word has length 28 [2021-03-11 14:38:05,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:05,585 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7052 transitions. [2021-03-11 14:38:05,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:05,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7052 transitions. [2021-03-11 14:38:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:05,587 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:05,587 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:05,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-03-11 14:38:05,587 INFO L428 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:05,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:05,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1918772708, now seen corresponding path program 255 times [2021-03-11 14:38:05,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:05,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333377247] [2021-03-11 14:38:05,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:05,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:05,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:05,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:05,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:05,605 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:05,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:05,614 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:05,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:05,627 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:05,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:05,648 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:05,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:05,682 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:05,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:05,720 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:05,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:05,751 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:05,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:05,787 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:05,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:05,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:05,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333377247] [2021-03-11 14:38:05,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:05,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:05,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402749378] [2021-03-11 14:38:05,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:05,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:05,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:05,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:05,821 INFO L87 Difference]: Start difference. First operand 1570 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:05,970 INFO L93 Difference]: Finished difference Result 2927 states and 11676 transitions. [2021-03-11 14:38:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:05,970 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:05,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:05,975 INFO L225 Difference]: With dead ends: 2927 [2021-03-11 14:38:05,975 INFO L226 Difference]: Without dead ends: 2912 [2021-03-11 14:38:05,976 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:06,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2021-03-11 14:38:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1574. [2021-03-11 14:38:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.487603305785124) internal successors, (7059), 1573 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7059 transitions. [2021-03-11 14:38:06,021 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7059 transitions. Word has length 28 [2021-03-11 14:38:06,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:06,022 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7059 transitions. [2021-03-11 14:38:06,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7059 transitions. [2021-03-11 14:38:06,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:06,024 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:06,024 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:06,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-03-11 14:38:06,024 INFO L428 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:06,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:06,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1745525016, now seen corresponding path program 256 times [2021-03-11 14:38:06,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:06,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561367730] [2021-03-11 14:38:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:06,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:06,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:06,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:06,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:06,040 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:06,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:06,048 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:06,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:06,059 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:06,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:06,074 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:06,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:06,106 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:06,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:06,144 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:06,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:06,174 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:06,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:06,211 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:06,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:06,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:06,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561367730] [2021-03-11 14:38:06,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:06,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:06,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322977299] [2021-03-11 14:38:06,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:06,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:06,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:06,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:06,245 INFO L87 Difference]: Start difference. First operand 1574 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:06,382 INFO L93 Difference]: Finished difference Result 2926 states and 11670 transitions. [2021-03-11 14:38:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:06,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:06,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:06,387 INFO L225 Difference]: With dead ends: 2926 [2021-03-11 14:38:06,388 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:38:06,388 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:38:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1570. [2021-03-11 14:38:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4920331421287445) internal successors, (7048), 1569 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7048 transitions. [2021-03-11 14:38:06,434 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7048 transitions. Word has length 28 [2021-03-11 14:38:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:06,434 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7048 transitions. [2021-03-11 14:38:06,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7048 transitions. [2021-03-11 14:38:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:06,436 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:06,436 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:06,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-03-11 14:38:06,436 INFO L428 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:06,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1502453092, now seen corresponding path program 257 times [2021-03-11 14:38:06,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:06,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361237234] [2021-03-11 14:38:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:06,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:06,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:06,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:06,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:06,451 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:06,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:06,459 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:06,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:06,471 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:06,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:06,486 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:06,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:06,518 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:06,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:06,557 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:06,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:06,602 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:06,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:06,639 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:06,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:06,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361237234] [2021-03-11 14:38:06,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:06,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:06,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062769909] [2021-03-11 14:38:06,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:06,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:06,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:06,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:06,673 INFO L87 Difference]: Start difference. First operand 1570 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:06,783 INFO L93 Difference]: Finished difference Result 2938 states and 11692 transitions. [2021-03-11 14:38:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:06,784 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:06,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:06,789 INFO L225 Difference]: With dead ends: 2938 [2021-03-11 14:38:06,789 INFO L226 Difference]: Without dead ends: 2918 [2021-03-11 14:38:06,789 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 244.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:06,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-03-11 14:38:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1575. [2021-03-11 14:38:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.48284625158831) internal successors, (7056), 1574 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7056 transitions. [2021-03-11 14:38:06,835 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7056 transitions. Word has length 28 [2021-03-11 14:38:06,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:06,835 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7056 transitions. [2021-03-11 14:38:06,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7056 transitions. [2021-03-11 14:38:06,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:06,837 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:06,837 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:06,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-03-11 14:38:06,837 INFO L428 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:06,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:06,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1476356900, now seen corresponding path program 258 times [2021-03-11 14:38:06,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:06,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39948599] [2021-03-11 14:38:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:06,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:06,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:06,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:06,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:06,852 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:06,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:06,859 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:06,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:06,871 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:06,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:06,885 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:06,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:06,926 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:06,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:06,965 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:07,010 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:07,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:07,046 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:07,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:07,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39948599] [2021-03-11 14:38:07,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:07,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:07,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838999049] [2021-03-11 14:38:07,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:07,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:07,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:07,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:07,080 INFO L87 Difference]: Start difference. First operand 1575 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:07,253 INFO L93 Difference]: Finished difference Result 2932 states and 11676 transitions. [2021-03-11 14:38:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:07,254 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:07,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:07,259 INFO L225 Difference]: With dead ends: 2932 [2021-03-11 14:38:07,259 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:38:07,259 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:38:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1565. [2021-03-11 14:38:07,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.497442455242966) internal successors, (7034), 1564 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7034 transitions. [2021-03-11 14:38:07,305 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7034 transitions. Word has length 28 [2021-03-11 14:38:07,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:07,305 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7034 transitions. [2021-03-11 14:38:07,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:07,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7034 transitions. [2021-03-11 14:38:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:07,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:07,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:07,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-03-11 14:38:07,308 INFO L428 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:07,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:07,308 INFO L82 PathProgramCache]: Analyzing trace with hash 982603654, now seen corresponding path program 259 times [2021-03-11 14:38:07,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:07,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418542131] [2021-03-11 14:38:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:07,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:07,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:07,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:07,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:07,322 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:07,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:07,329 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:07,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:07,341 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:07,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:07,356 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:07,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:07,389 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:07,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:07,429 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:07,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:07,479 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:07,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:07,516 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:07,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:07,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418542131] [2021-03-11 14:38:07,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:07,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:07,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570634551] [2021-03-11 14:38:07,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:07,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:07,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:07,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:07,550 INFO L87 Difference]: Start difference. First operand 1565 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:07,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:07,683 INFO L93 Difference]: Finished difference Result 2940 states and 11704 transitions. [2021-03-11 14:38:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:07,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:07,689 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:38:07,689 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:38:07,689 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:38:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1577. [2021-03-11 14:38:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.4828680203045685) internal successors, (7065), 1576 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7065 transitions. [2021-03-11 14:38:07,734 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7065 transitions. Word has length 28 [2021-03-11 14:38:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:07,734 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7065 transitions. [2021-03-11 14:38:07,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7065 transitions. [2021-03-11 14:38:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:07,736 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:07,736 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:07,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-03-11 14:38:07,736 INFO L428 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:07,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1727306152, now seen corresponding path program 260 times [2021-03-11 14:38:07,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:07,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251465856] [2021-03-11 14:38:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:07,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:07,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:07,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:07,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:07,751 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:07,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:07,758 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:07,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:07,770 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:07,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:07,785 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:07,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:07,818 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:07,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:07,859 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:07,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:07,918 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:07,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:07,958 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:07,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:07,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:07,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251465856] [2021-03-11 14:38:07,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:07,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:07,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133060234] [2021-03-11 14:38:07,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:07,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:07,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:07,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:07,993 INFO L87 Difference]: Start difference. First operand 1577 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:08,099 INFO L93 Difference]: Finished difference Result 2944 states and 11705 transitions. [2021-03-11 14:38:08,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:08,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:08,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:08,105 INFO L225 Difference]: With dead ends: 2944 [2021-03-11 14:38:08,105 INFO L226 Difference]: Without dead ends: 2917 [2021-03-11 14:38:08,105 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2021-03-11 14:38:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1570. [2021-03-11 14:38:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.491395793499044) internal successors, (7047), 1569 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7047 transitions. [2021-03-11 14:38:08,152 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7047 transitions. Word has length 28 [2021-03-11 14:38:08,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:08,152 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7047 transitions. [2021-03-11 14:38:08,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7047 transitions. [2021-03-11 14:38:08,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:08,154 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:08,154 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:08,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-03-11 14:38:08,154 INFO L428 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:08,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:08,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1163567106, now seen corresponding path program 261 times [2021-03-11 14:38:08,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:08,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30231249] [2021-03-11 14:38:08,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:08,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:08,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:08,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:08,177 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:08,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:08,188 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:08,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:08,203 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:08,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:08,235 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:08,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:08,275 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:08,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:08,304 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:08,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:08,340 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:08,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30231249] [2021-03-11 14:38:08,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:08,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:08,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467075633] [2021-03-11 14:38:08,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:08,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:08,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:08,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:08,374 INFO L87 Difference]: Start difference. First operand 1570 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:08,503 INFO L93 Difference]: Finished difference Result 2931 states and 11680 transitions. [2021-03-11 14:38:08,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:08,503 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:08,508 INFO L225 Difference]: With dead ends: 2931 [2021-03-11 14:38:08,508 INFO L226 Difference]: Without dead ends: 2915 [2021-03-11 14:38:08,508 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 254.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2021-03-11 14:38:08,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1574. [2021-03-11 14:38:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.484424666242848) internal successors, (7054), 1573 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7054 transitions. [2021-03-11 14:38:08,555 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:08,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:08,555 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7054 transitions. [2021-03-11 14:38:08,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7054 transitions. [2021-03-11 14:38:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:08,557 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:08,557 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:08,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-03-11 14:38:08,557 INFO L428 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:08,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:08,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1735021912, now seen corresponding path program 262 times [2021-03-11 14:38:08,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:08,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571263256] [2021-03-11 14:38:08,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:08,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:08,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:08,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:08,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:08,571 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:08,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:08,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:08,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:08,591 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:08,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:08,607 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:08,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:08,639 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:08,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:08,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:08,710 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:08,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:08,746 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:08,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:08,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571263256] [2021-03-11 14:38:08,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:08,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:08,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217802063] [2021-03-11 14:38:08,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:08,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:08,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:08,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:08,781 INFO L87 Difference]: Start difference. First operand 1574 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:08,931 INFO L93 Difference]: Finished difference Result 2929 states and 11672 transitions. [2021-03-11 14:38:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:08,931 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:08,936 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:38:08,937 INFO L226 Difference]: Without dead ends: 2911 [2021-03-11 14:38:08,937 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-11 14:38:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 1570. [2021-03-11 14:38:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.488846398980242) internal successors, (7043), 1569 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7043 transitions. [2021-03-11 14:38:08,984 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7043 transitions. Word has length 28 [2021-03-11 14:38:08,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:08,984 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7043 transitions. [2021-03-11 14:38:08,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7043 transitions. [2021-03-11 14:38:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:08,986 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:08,986 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:08,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-03-11 14:38:08,986 INFO L428 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1192076350, now seen corresponding path program 263 times [2021-03-11 14:38:08,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:08,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738730603] [2021-03-11 14:38:08,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:08,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:08,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:08,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:08,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:09,000 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:09,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:09,008 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:09,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:09,020 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:09,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:09,035 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:09,066 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:09,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:09,106 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:09,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:09,151 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:09,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:09,188 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:09,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:09,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738730603] [2021-03-11 14:38:09,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:09,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:09,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865569902] [2021-03-11 14:38:09,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:09,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:09,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:09,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:09,223 INFO L87 Difference]: Start difference. First operand 1570 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:09,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:09,332 INFO L93 Difference]: Finished difference Result 2940 states and 11692 transitions. [2021-03-11 14:38:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:09,333 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:09,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:09,338 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:38:09,338 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:38:09,338 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 245.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:38:09,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1575. [2021-03-11 14:38:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.479669631512071) internal successors, (7051), 1574 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:09,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7051 transitions. [2021-03-11 14:38:09,384 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7051 transitions. Word has length 28 [2021-03-11 14:38:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:09,384 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7051 transitions. [2021-03-11 14:38:09,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:09,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7051 transitions. [2021-03-11 14:38:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:09,387 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:09,387 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:09,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-03-11 14:38:09,387 INFO L428 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:09,387 INFO L82 PathProgramCache]: Analyzing trace with hash -124080954, now seen corresponding path program 264 times [2021-03-11 14:38:09,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:09,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143437595] [2021-03-11 14:38:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:09,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:09,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:09,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:09,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:09,401 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:09,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:09,409 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:09,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:09,421 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:09,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:09,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:09,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:09,469 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:09,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:09,524 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:09,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:09,582 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:09,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:09,629 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:09,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:09,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143437595] [2021-03-11 14:38:09,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:09,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:09,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637601602] [2021-03-11 14:38:09,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:09,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:09,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:09,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:09,673 INFO L87 Difference]: Start difference. First operand 1575 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:09,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:09,856 INFO L93 Difference]: Finished difference Result 2934 states and 11676 transitions. [2021-03-11 14:38:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:09,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:09,865 INFO L225 Difference]: With dead ends: 2934 [2021-03-11 14:38:09,865 INFO L226 Difference]: Without dead ends: 2905 [2021-03-11 14:38:09,865 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 324.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-03-11 14:38:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 1560. [2021-03-11 14:38:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 4.5028864656831304) internal successors, (7020), 1559 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 7020 transitions. [2021-03-11 14:38:09,935 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 7020 transitions. Word has length 28 [2021-03-11 14:38:09,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:09,935 INFO L480 AbstractCegarLoop]: Abstraction has 1560 states and 7020 transitions. [2021-03-11 14:38:09,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 7020 transitions. [2021-03-11 14:38:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:09,938 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:09,938 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:09,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-03-11 14:38:09,938 INFO L428 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:09,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:09,938 INFO L82 PathProgramCache]: Analyzing trace with hash 155271406, now seen corresponding path program 265 times [2021-03-11 14:38:09,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:09,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840281104] [2021-03-11 14:38:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:09,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:09,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:09,952 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:09,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:09,960 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:09,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:09,972 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:09,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:09,988 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:09,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:10,009 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:10,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:10,050 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:10,082 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:10,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:10,119 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:10,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:10,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840281104] [2021-03-11 14:38:10,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:10,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:10,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363008660] [2021-03-11 14:38:10,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:10,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:10,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:10,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:10,153 INFO L87 Difference]: Start difference. First operand 1560 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:10,304 INFO L93 Difference]: Finished difference Result 2950 states and 11754 transitions. [2021-03-11 14:38:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:10,305 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:10,310 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:38:10,310 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:38:10,310 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:10,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:38:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1577. [2021-03-11 14:38:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.491751269035533) internal successors, (7079), 1576 states have internal predecessors, (7079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7079 transitions. [2021-03-11 14:38:10,356 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7079 transitions. Word has length 28 [2021-03-11 14:38:10,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:10,357 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7079 transitions. [2021-03-11 14:38:10,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7079 transitions. [2021-03-11 14:38:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:10,359 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:10,359 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:10,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-03-11 14:38:10,359 INFO L428 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:10,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:10,359 INFO L82 PathProgramCache]: Analyzing trace with hash 899973904, now seen corresponding path program 266 times [2021-03-11 14:38:10,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:10,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879421284] [2021-03-11 14:38:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:10,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:10,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:10,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:10,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:10,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:10,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:10,382 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:10,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:10,393 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:10,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:10,408 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:10,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:10,428 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:10,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:10,469 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:10,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:10,500 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:10,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:10,536 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:10,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:10,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879421284] [2021-03-11 14:38:10,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:10,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:10,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208019020] [2021-03-11 14:38:10,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:10,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:10,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:10,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:10,571 INFO L87 Difference]: Start difference. First operand 1577 states and 7079 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:10,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:10,717 INFO L93 Difference]: Finished difference Result 2951 states and 11751 transitions. [2021-03-11 14:38:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:10,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:10,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:10,722 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:38:10,722 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:38:10,723 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:10,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:38:10,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1572. [2021-03-11 14:38:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.497135582431572) internal successors, (7065), 1571 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7065 transitions. [2021-03-11 14:38:10,769 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7065 transitions. Word has length 28 [2021-03-11 14:38:10,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:10,769 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7065 transitions. [2021-03-11 14:38:10,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:10,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7065 transitions. [2021-03-11 14:38:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:10,771 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:10,771 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:10,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-03-11 14:38:10,771 INFO L428 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:10,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:10,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1766212364, now seen corresponding path program 267 times [2021-03-11 14:38:10,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:10,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389545882] [2021-03-11 14:38:10,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:10,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:10,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:10,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:10,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:10,787 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:10,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:10,795 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:10,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:10,807 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:10,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:10,822 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:10,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:10,842 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:10,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:10,883 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:10,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:10,931 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:10,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:10,968 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:10,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:11,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:11,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389545882] [2021-03-11 14:38:11,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:11,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:11,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068369971] [2021-03-11 14:38:11,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:11,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:11,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:11,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:11,003 INFO L87 Difference]: Start difference. First operand 1572 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:11,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:11,145 INFO L93 Difference]: Finished difference Result 2955 states and 11758 transitions. [2021-03-11 14:38:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:11,146 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:11,151 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:38:11,151 INFO L226 Difference]: Without dead ends: 2940 [2021-03-11 14:38:11,151 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-03-11 14:38:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1578. [2021-03-11 14:38:11,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.487000634115409) internal successors, (7076), 1577 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7076 transitions. [2021-03-11 14:38:11,198 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7076 transitions. Word has length 28 [2021-03-11 14:38:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:11,198 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7076 transitions. [2021-03-11 14:38:11,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:11,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7076 transitions. [2021-03-11 14:38:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:11,200 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:11,200 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:11,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-03-11 14:38:11,200 INFO L428 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:11,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:11,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1039349936, now seen corresponding path program 268 times [2021-03-11 14:38:11,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:11,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051738099] [2021-03-11 14:38:11,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:11,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:11,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:11,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:11,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:11,215 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:11,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:11,223 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:11,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:11,235 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:11,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:11,250 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:11,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:11,271 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:11,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:11,313 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:11,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:11,361 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:11,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:11,399 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:11,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:11,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:11,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051738099] [2021-03-11 14:38:11,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:11,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:11,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838527921] [2021-03-11 14:38:11,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:11,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:11,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:11,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:11,434 INFO L87 Difference]: Start difference. First operand 1578 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:11,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:11,550 INFO L93 Difference]: Finished difference Result 2960 states and 11762 transitions. [2021-03-11 14:38:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:11,550 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:11,556 INFO L225 Difference]: With dead ends: 2960 [2021-03-11 14:38:11,556 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:38:11,556 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 244.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:11,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:38:11,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1572. [2021-03-11 14:38:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.493316359007002) internal successors, (7059), 1571 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:11,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7059 transitions. [2021-03-11 14:38:11,605 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7059 transitions. Word has length 28 [2021-03-11 14:38:11,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:11,605 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7059 transitions. [2021-03-11 14:38:11,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:11,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7059 transitions. [2021-03-11 14:38:11,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:11,607 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:11,607 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:11,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-03-11 14:38:11,607 INFO L428 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:11,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:11,607 INFO L82 PathProgramCache]: Analyzing trace with hash -173111476, now seen corresponding path program 269 times [2021-03-11 14:38:11,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:11,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114023464] [2021-03-11 14:38:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:11,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:11,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:11,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:11,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:11,622 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:11,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:11,630 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:11,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:11,642 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:11,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:11,658 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:11,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:11,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:11,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:11,722 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:11,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:11,774 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:11,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:11,812 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:11,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:11,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:11,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114023464] [2021-03-11 14:38:11,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:11,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:11,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173920322] [2021-03-11 14:38:11,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:11,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:11,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:11,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:11,848 INFO L87 Difference]: Start difference. First operand 1572 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:11,989 INFO L93 Difference]: Finished difference Result 2958 states and 11759 transitions. [2021-03-11 14:38:11,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:11,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:11,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:11,995 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:38:11,996 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:38:11,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:38:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1579. [2021-03-11 14:38:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.481622306717364) internal successors, (7072), 1578 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7072 transitions. [2021-03-11 14:38:12,044 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7072 transitions. Word has length 28 [2021-03-11 14:38:12,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:12,044 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7072 transitions. [2021-03-11 14:38:12,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7072 transitions. [2021-03-11 14:38:12,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:12,046 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:12,047 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:12,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-03-11 14:38:12,047 INFO L428 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:12,047 INFO L82 PathProgramCache]: Analyzing trace with hash 571591022, now seen corresponding path program 270 times [2021-03-11 14:38:12,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:12,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193893166] [2021-03-11 14:38:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:12,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:12,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:12,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:12,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:12,061 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:12,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:12,070 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:12,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:12,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:12,098 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:12,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:12,120 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:12,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:12,162 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:12,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:12,215 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:12,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:12,254 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:12,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:12,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:12,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193893166] [2021-03-11 14:38:12,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:12,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:12,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133637634] [2021-03-11 14:38:12,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:12,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:12,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:12,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:12,290 INFO L87 Difference]: Start difference. First operand 1579 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:12,428 INFO L93 Difference]: Finished difference Result 2962 states and 11760 transitions. [2021-03-11 14:38:12,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:12,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:12,434 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:38:12,434 INFO L226 Difference]: Without dead ends: 2929 [2021-03-11 14:38:12,435 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:12,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-03-11 14:38:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1566. [2021-03-11 14:38:12,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.499680511182109) internal successors, (7042), 1565 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7042 transitions. [2021-03-11 14:38:12,482 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7042 transitions. Word has length 28 [2021-03-11 14:38:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:12,482 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7042 transitions. [2021-03-11 14:38:12,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7042 transitions. [2021-03-11 14:38:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:12,485 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:12,485 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:12,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-03-11 14:38:12,485 INFO L428 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:12,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:12,485 INFO L82 PathProgramCache]: Analyzing trace with hash -669941720, now seen corresponding path program 271 times [2021-03-11 14:38:12,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:12,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730977770] [2021-03-11 14:38:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:12,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:12,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:12,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:12,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:12,499 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:12,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:12,507 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:12,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:12,520 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:12,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:12,536 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:12,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:12,557 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:12,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:12,583 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:12,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:12,628 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:12,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:12,667 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:12,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:12,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:12,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730977770] [2021-03-11 14:38:12,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:12,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:12,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422501526] [2021-03-11 14:38:12,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:12,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:12,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:12,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:12,703 INFO L87 Difference]: Start difference. First operand 1566 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:12,856 INFO L93 Difference]: Finished difference Result 2944 states and 11736 transitions. [2021-03-11 14:38:12,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:12,856 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:12,862 INFO L225 Difference]: With dead ends: 2944 [2021-03-11 14:38:12,862 INFO L226 Difference]: Without dead ends: 2929 [2021-03-11 14:38:12,862 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 239.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:12,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-03-11 14:38:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1576. [2021-03-11 14:38:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.488888888888889) internal successors, (7070), 1575 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7070 transitions. [2021-03-11 14:38:12,909 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7070 transitions. Word has length 28 [2021-03-11 14:38:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:12,909 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7070 transitions. [2021-03-11 14:38:12,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7070 transitions. [2021-03-11 14:38:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:12,911 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:12,911 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:12,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-03-11 14:38:12,911 INFO L428 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:12,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:12,911 INFO L82 PathProgramCache]: Analyzing trace with hash 74760778, now seen corresponding path program 272 times [2021-03-11 14:38:12,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:12,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759327761] [2021-03-11 14:38:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:12,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:12,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:12,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:12,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:12,934 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:12,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:12,946 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:12,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:12,962 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:12,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:12,983 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:13,009 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:13,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:13,041 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:13,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:13,078 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:13,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:13,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759327761] [2021-03-11 14:38:13,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:13,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:13,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675735725] [2021-03-11 14:38:13,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:13,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:13,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:13,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:13,113 INFO L87 Difference]: Start difference. First operand 1576 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:13,246 INFO L93 Difference]: Finished difference Result 2945 states and 11733 transitions. [2021-03-11 14:38:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:13,247 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:13,252 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:38:13,252 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:38:13,253 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:13,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:38:13,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1571. [2021-03-11 14:38:13,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.494267515923567) internal successors, (7056), 1570 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:13,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7056 transitions. [2021-03-11 14:38:13,300 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7056 transitions. Word has length 28 [2021-03-11 14:38:13,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:13,301 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7056 transitions. [2021-03-11 14:38:13,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:13,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7056 transitions. [2021-03-11 14:38:13,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:13,303 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:13,303 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:13,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-03-11 14:38:13,303 INFO L428 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:13,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:13,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2016710394, now seen corresponding path program 273 times [2021-03-11 14:38:13,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:13,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267255979] [2021-03-11 14:38:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:13,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:13,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:13,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:13,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:13,317 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:13,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:13,325 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:13,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:13,338 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:13,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:13,353 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:13,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:13,374 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:13,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:13,400 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:13,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:13,434 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:13,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:13,472 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:13,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:13,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267255979] [2021-03-11 14:38:13,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:13,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:13,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779733939] [2021-03-11 14:38:13,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:13,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:13,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:13,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:13,507 INFO L87 Difference]: Start difference. First operand 1571 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:13,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:13,657 INFO L93 Difference]: Finished difference Result 2945 states and 11733 transitions. [2021-03-11 14:38:13,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:13,658 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:13,663 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:38:13,663 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:38:13,663 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 239.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:13,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:38:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1576. [2021-03-11 14:38:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.485714285714286) internal successors, (7065), 1575 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7065 transitions. [2021-03-11 14:38:13,710 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7065 transitions. Word has length 28 [2021-03-11 14:38:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:13,710 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7065 transitions. [2021-03-11 14:38:13,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7065 transitions. [2021-03-11 14:38:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:13,712 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:13,712 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:13,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-11 14:38:13,712 INFO L428 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:13,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:13,712 INFO L82 PathProgramCache]: Analyzing trace with hash -615604214, now seen corresponding path program 274 times [2021-03-11 14:38:13,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:13,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807158818] [2021-03-11 14:38:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:13,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:13,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:13,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:13,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:13,726 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:13,734 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:13,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:13,747 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:13,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:13,762 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:13,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:13,782 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:13,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:13,807 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:13,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:13,837 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:13,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:13,874 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:13,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:13,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807158818] [2021-03-11 14:38:13,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:13,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:13,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706503929] [2021-03-11 14:38:13,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:13,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:13,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:13,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:13,908 INFO L87 Difference]: Start difference. First operand 1576 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:14,061 INFO L93 Difference]: Finished difference Result 2947 states and 11732 transitions. [2021-03-11 14:38:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:14,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:14,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:14,067 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:38:14,067 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:38:14,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 232.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:14,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:38:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1571. [2021-03-11 14:38:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.491082802547771) internal successors, (7051), 1570 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7051 transitions. [2021-03-11 14:38:14,114 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7051 transitions. Word has length 28 [2021-03-11 14:38:14,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:14,114 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7051 transitions. [2021-03-11 14:38:14,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7051 transitions. [2021-03-11 14:38:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:14,116 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:14,116 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:14,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-03-11 14:38:14,116 INFO L428 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:14,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:14,116 INFO L82 PathProgramCache]: Analyzing trace with hash 77386554, now seen corresponding path program 275 times [2021-03-11 14:38:14,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:14,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41067251] [2021-03-11 14:38:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:14,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:14,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:14,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:14,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:14,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:14,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:14,138 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:14,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:14,150 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:14,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:14,166 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:14,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:14,187 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:14,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:14,212 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:14,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:14,244 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:14,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:14,281 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:14,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:14,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:14,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41067251] [2021-03-11 14:38:14,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:14,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:14,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700132643] [2021-03-11 14:38:14,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:14,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:14,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:14,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:14,317 INFO L87 Difference]: Start difference. First operand 1571 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:14,465 INFO L93 Difference]: Finished difference Result 2948 states and 11735 transitions. [2021-03-11 14:38:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:14,466 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:14,471 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:38:14,471 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:38:14,471 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:14,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:38:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1577. [2021-03-11 14:38:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.480964467005077) internal successors, (7062), 1576 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7062 transitions. [2021-03-11 14:38:14,517 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7062 transitions. Word has length 28 [2021-03-11 14:38:14,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:14,517 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7062 transitions. [2021-03-11 14:38:14,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7062 transitions. [2021-03-11 14:38:14,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:14,519 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:14,520 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:14,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-03-11 14:38:14,520 INFO L428 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:14,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:14,520 INFO L82 PathProgramCache]: Analyzing trace with hash 995336744, now seen corresponding path program 276 times [2021-03-11 14:38:14,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:14,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080101937] [2021-03-11 14:38:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:14,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:14,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:14,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:14,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:14,534 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:14,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:14,542 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:14,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:14,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:14,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:14,570 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:14,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:14,591 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:14,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:14,617 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:14,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:14,649 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:14,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:14,686 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:14,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:14,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080101937] [2021-03-11 14:38:14,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:14,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:14,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331567321] [2021-03-11 14:38:14,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:14,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:14,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:14,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:14,722 INFO L87 Difference]: Start difference. First operand 1577 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:14,881 INFO L93 Difference]: Finished difference Result 2949 states and 11731 transitions. [2021-03-11 14:38:14,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:14,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:14,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:14,887 INFO L225 Difference]: With dead ends: 2949 [2021-03-11 14:38:14,887 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:38:14,887 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:38:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1566. [2021-03-11 14:38:14,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.496485623003195) internal successors, (7037), 1565 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7037 transitions. [2021-03-11 14:38:14,933 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7037 transitions. Word has length 28 [2021-03-11 14:38:14,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:14,933 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7037 transitions. [2021-03-11 14:38:14,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:14,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7037 transitions. [2021-03-11 14:38:14,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:14,935 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:14,935 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:14,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-03-11 14:38:14,935 INFO L428 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:14,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:14,935 INFO L82 PathProgramCache]: Analyzing trace with hash -659438616, now seen corresponding path program 277 times [2021-03-11 14:38:14,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:14,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983627141] [2021-03-11 14:38:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:14,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:14,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:14,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:14,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:14,952 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:14,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:14,960 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:14,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:14,972 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:14,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:14,988 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:14,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:15,008 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:15,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:15,033 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:15,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:15,082 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:15,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:15,120 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:15,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:15,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983627141] [2021-03-11 14:38:15,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:15,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:15,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206709421] [2021-03-11 14:38:15,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:15,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:15,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:15,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:15,156 INFO L87 Difference]: Start difference. First operand 1566 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:15,319 INFO L93 Difference]: Finished difference Result 2957 states and 11757 transitions. [2021-03-11 14:38:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:15,319 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:15,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:15,325 INFO L225 Difference]: With dead ends: 2957 [2021-03-11 14:38:15,325 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:38:15,325 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 254.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:15,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:38:15,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1578. [2021-03-11 14:38:15,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.483195941661382) internal successors, (7070), 1577 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:15,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7070 transitions. [2021-03-11 14:38:15,372 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7070 transitions. Word has length 28 [2021-03-11 14:38:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:15,372 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7070 transitions. [2021-03-11 14:38:15,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7070 transitions. [2021-03-11 14:38:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:15,374 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:15,374 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:15,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-03-11 14:38:15,374 INFO L428 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:15,374 INFO L82 PathProgramCache]: Analyzing trace with hash 829966380, now seen corresponding path program 278 times [2021-03-11 14:38:15,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:15,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095752179] [2021-03-11 14:38:15,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:15,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:15,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:15,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:15,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:15,391 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:15,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:15,399 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:15,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:15,411 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:15,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:15,427 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:15,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:15,447 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:15,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:15,472 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:15,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:15,520 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:15,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:15,559 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:15,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:15,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095752179] [2021-03-11 14:38:15,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:15,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:15,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138089046] [2021-03-11 14:38:15,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:15,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:15,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:15,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:15,594 INFO L87 Difference]: Start difference. First operand 1578 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:15,753 INFO L93 Difference]: Finished difference Result 2962 states and 11761 transitions. [2021-03-11 14:38:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:15,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:15,759 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:38:15,759 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:38:15,759 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 253.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:38:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1572. [2021-03-11 14:38:15,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.489497135582432) internal successors, (7053), 1571 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7053 transitions. [2021-03-11 14:38:15,805 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7053 transitions. Word has length 28 [2021-03-11 14:38:15,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:15,805 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7053 transitions. [2021-03-11 14:38:15,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7053 transitions. [2021-03-11 14:38:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:15,807 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:15,807 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:15,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-03-11 14:38:15,807 INFO L428 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:15,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:15,808 INFO L82 PathProgramCache]: Analyzing trace with hash 416272540, now seen corresponding path program 279 times [2021-03-11 14:38:15,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:15,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885097095] [2021-03-11 14:38:15,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:15,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:15,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:15,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:15,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:15,823 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:15,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:15,831 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:15,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:15,842 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:15,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:15,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:15,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:15,877 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:15,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:15,902 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:15,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:15,931 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:15,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:15,968 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:15,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:16,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:16,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885097095] [2021-03-11 14:38:16,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:16,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:16,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590189032] [2021-03-11 14:38:16,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:16,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:16,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:16,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:16,002 INFO L87 Difference]: Start difference. First operand 1572 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:16,140 INFO L93 Difference]: Finished difference Result 2953 states and 11744 transitions. [2021-03-11 14:38:16,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:16,140 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:16,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:16,145 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:38:16,146 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:38:16,146 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 228.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:16,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:38:16,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1577. [2021-03-11 14:38:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.480964467005077) internal successors, (7062), 1576 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7062 transitions. [2021-03-11 14:38:16,192 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7062 transitions. Word has length 28 [2021-03-11 14:38:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:16,192 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7062 transitions. [2021-03-11 14:38:16,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7062 transitions. [2021-03-11 14:38:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:16,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:16,194 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:16,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-03-11 14:38:16,194 INFO L428 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:16,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2078925228, now seen corresponding path program 280 times [2021-03-11 14:38:16,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:16,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114331726] [2021-03-11 14:38:16,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:16,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:16,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:16,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:16,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:16,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:16,216 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:16,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:16,228 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:16,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:16,243 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:16,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:16,263 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:16,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:16,287 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:16,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:16,317 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:16,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:16,353 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:16,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:16,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:16,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114331726] [2021-03-11 14:38:16,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:16,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:16,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261547303] [2021-03-11 14:38:16,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:16,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:16,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:16,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:16,387 INFO L87 Difference]: Start difference. First operand 1577 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:16,559 INFO L93 Difference]: Finished difference Result 2955 states and 11743 transitions. [2021-03-11 14:38:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:16,565 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:38:16,565 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:38:16,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 227.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:16,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:38:16,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1572. [2021-03-11 14:38:16,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.48631444939529) internal successors, (7048), 1571 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7048 transitions. [2021-03-11 14:38:16,612 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7048 transitions. Word has length 28 [2021-03-11 14:38:16,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:16,612 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7048 transitions. [2021-03-11 14:38:16,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7048 transitions. [2021-03-11 14:38:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:16,614 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:16,614 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:16,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-03-11 14:38:16,614 INFO L428 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:16,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:16,614 INFO L82 PathProgramCache]: Analyzing trace with hash 832592156, now seen corresponding path program 281 times [2021-03-11 14:38:16,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:16,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137439142] [2021-03-11 14:38:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:16,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:16,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:16,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:16,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:16,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:16,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:16,636 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:16,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:16,647 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:16,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:16,662 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:16,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:16,682 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:16,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:16,707 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:16,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:16,738 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:16,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:16,775 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:16,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:16,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137439142] [2021-03-11 14:38:16,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:16,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:16,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536431863] [2021-03-11 14:38:16,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:16,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:16,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:16,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:16,809 INFO L87 Difference]: Start difference. First operand 1572 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:16,935 INFO L93 Difference]: Finished difference Result 2966 states and 11765 transitions. [2021-03-11 14:38:16,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:16,936 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:16,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:16,941 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:38:16,941 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:38:16,941 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 204.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:16,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:38:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1580. [2021-03-11 14:38:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.472450918302723) internal successors, (7062), 1579 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7062 transitions. [2021-03-11 14:38:16,987 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7062 transitions. Word has length 28 [2021-03-11 14:38:16,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:16,988 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7062 transitions. [2021-03-11 14:38:16,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7062 transitions. [2021-03-11 14:38:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:16,990 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:16,990 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:16,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-03-11 14:38:16,990 INFO L428 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:16,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1005839848, now seen corresponding path program 282 times [2021-03-11 14:38:16,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:16,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515341090] [2021-03-11 14:38:16,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:16,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:16,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:17,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:17,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:17,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:17,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:17,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:17,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:17,028 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:17,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:17,043 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:17,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:17,063 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:17,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:17,088 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:17,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:17,119 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:17,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:17,155 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:17,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:17,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515341090] [2021-03-11 14:38:17,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:17,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:17,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85256430] [2021-03-11 14:38:17,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:17,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:17,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:17,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:17,190 INFO L87 Difference]: Start difference. First operand 1580 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:17,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:17,334 INFO L93 Difference]: Finished difference Result 2963 states and 11752 transitions. [2021-03-11 14:38:17,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:17,334 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:17,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:17,340 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:38:17,340 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:38:17,340 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 230.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:17,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:38:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1566. [2021-03-11 14:38:17,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.492651757188498) internal successors, (7031), 1565 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7031 transitions. [2021-03-11 14:38:17,388 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7031 transitions. Word has length 28 [2021-03-11 14:38:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:17,388 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7031 transitions. [2021-03-11 14:38:17,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:17,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7031 transitions. [2021-03-11 14:38:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:17,390 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:17,390 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:17,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-03-11 14:38:17,390 INFO L428 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:17,390 INFO L82 PathProgramCache]: Analyzing trace with hash 95766986, now seen corresponding path program 283 times [2021-03-11 14:38:17,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:17,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837666411] [2021-03-11 14:38:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:17,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:17,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:17,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:17,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:17,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:17,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:17,413 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:17,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:17,424 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:17,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:17,440 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:17,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:17,460 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:17,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:17,486 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:17,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:17,537 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:17,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:17,573 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:17,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:17,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:17,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837666411] [2021-03-11 14:38:17,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:17,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:17,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620565498] [2021-03-11 14:38:17,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:17,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:17,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:17,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:17,607 INFO L87 Difference]: Start difference. First operand 1566 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:17,749 INFO L93 Difference]: Finished difference Result 2964 states and 11770 transitions. [2021-03-11 14:38:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:17,749 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:17,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:17,755 INFO L225 Difference]: With dead ends: 2964 [2021-03-11 14:38:17,755 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:38:17,755 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 251.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:38:17,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1580. [2021-03-11 14:38:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.477517416086131) internal successors, (7070), 1579 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:17,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7070 transitions. [2021-03-11 14:38:17,801 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7070 transitions. Word has length 28 [2021-03-11 14:38:17,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:17,801 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7070 transitions. [2021-03-11 14:38:17,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:17,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7070 transitions. [2021-03-11 14:38:17,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:17,803 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:17,803 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:17,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-03-11 14:38:17,803 INFO L428 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:17,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:17,804 INFO L82 PathProgramCache]: Analyzing trace with hash 840469484, now seen corresponding path program 284 times [2021-03-11 14:38:17,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:17,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200784252] [2021-03-11 14:38:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:17,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:17,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:17,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:17,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:17,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:17,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:17,826 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:17,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:17,837 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:17,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:17,853 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:17,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:17,873 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:17,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:17,898 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:17,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:17,950 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:17,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:17,987 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:17,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:18,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200784252] [2021-03-11 14:38:18,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:18,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:18,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398226538] [2021-03-11 14:38:18,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:18,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:18,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:18,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:18,021 INFO L87 Difference]: Start difference. First operand 1580 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:18,149 INFO L93 Difference]: Finished difference Result 2968 states and 11771 transitions. [2021-03-11 14:38:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:18,149 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:18,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:18,154 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:38:18,155 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:38:18,155 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 227.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:18,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:38:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1573. [2021-03-11 14:38:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.484732824427481) internal successors, (7050), 1572 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7050 transitions. [2021-03-11 14:38:18,201 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7050 transitions. Word has length 28 [2021-03-11 14:38:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:18,202 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7050 transitions. [2021-03-11 14:38:18,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7050 transitions. [2021-03-11 14:38:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:18,204 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:18,204 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:18,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-03-11 14:38:18,204 INFO L428 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:18,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:18,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1171478142, now seen corresponding path program 285 times [2021-03-11 14:38:18,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:18,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359380333] [2021-03-11 14:38:18,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:18,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:18,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:18,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:18,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:18,223 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:18,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:18,231 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:18,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:18,243 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:18,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:18,258 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:18,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:18,279 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:18,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:18,304 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:18,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:18,334 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:18,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:18,372 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:18,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:18,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359380333] [2021-03-11 14:38:18,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:18,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:18,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448658541] [2021-03-11 14:38:18,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:18,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:18,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:18,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:18,407 INFO L87 Difference]: Start difference. First operand 1573 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:18,570 INFO L93 Difference]: Finished difference Result 2960 states and 11756 transitions. [2021-03-11 14:38:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:18,570 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:18,576 INFO L225 Difference]: With dead ends: 2960 [2021-03-11 14:38:18,576 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:38:18,576 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 233.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:38:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1579. [2021-03-11 14:38:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.474651457541191) internal successors, (7061), 1578 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7061 transitions. [2021-03-11 14:38:18,622 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7061 transitions. Word has length 28 [2021-03-11 14:38:18,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:18,622 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7061 transitions. [2021-03-11 14:38:18,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7061 transitions. [2021-03-11 14:38:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:18,624 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:18,624 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:18,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-03-11 14:38:18,624 INFO L428 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:18,624 INFO L82 PathProgramCache]: Analyzing trace with hash 2089428332, now seen corresponding path program 286 times [2021-03-11 14:38:18,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:18,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475958297] [2021-03-11 14:38:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:18,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:18,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:18,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:18,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:18,642 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:18,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:18,650 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:18,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:18,662 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:18,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:18,678 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:18,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:18,698 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:18,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:18,724 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:18,754 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:18,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:18,791 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:18,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:18,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475958297] [2021-03-11 14:38:18,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:18,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:18,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409221837] [2021-03-11 14:38:18,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:18,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:18,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:18,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:18,826 INFO L87 Difference]: Start difference. First operand 1579 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:18,979 INFO L93 Difference]: Finished difference Result 2961 states and 11752 transitions. [2021-03-11 14:38:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:18,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:18,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:18,985 INFO L225 Difference]: With dead ends: 2961 [2021-03-11 14:38:18,985 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:38:18,985 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 232.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:19,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:38:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1573. [2021-03-11 14:38:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.480916030534351) internal successors, (7044), 1572 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7044 transitions. [2021-03-11 14:38:19,031 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7044 transitions. Word has length 28 [2021-03-11 14:38:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:19,031 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7044 transitions. [2021-03-11 14:38:19,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7044 transitions. [2021-03-11 14:38:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:19,033 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:19,033 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:19,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-03-11 14:38:19,033 INFO L428 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:19,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:19,033 INFO L82 PathProgramCache]: Analyzing trace with hash -767845698, now seen corresponding path program 287 times [2021-03-11 14:38:19,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:19,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247140707] [2021-03-11 14:38:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:19,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:19,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:19,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:19,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:19,048 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:19,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:19,056 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:19,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:19,067 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:19,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:19,083 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:19,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:19,103 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:19,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:19,128 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:19,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:19,159 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:19,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:19,196 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:19,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:19,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247140707] [2021-03-11 14:38:19,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:19,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:19,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354576420] [2021-03-11 14:38:19,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:19,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:19,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:19,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:19,230 INFO L87 Difference]: Start difference. First operand 1573 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:19,334 INFO L93 Difference]: Finished difference Result 2970 states and 11769 transitions. [2021-03-11 14:38:19,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:19,334 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:19,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:19,339 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:38:19,340 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:38:19,340 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 205.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:38:19,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1581. [2021-03-11 14:38:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.4670886075949365) internal successors, (7058), 1580 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7058 transitions. [2021-03-11 14:38:19,385 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7058 transitions. Word has length 28 [2021-03-11 14:38:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:19,385 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7058 transitions. [2021-03-11 14:38:19,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7058 transitions. [2021-03-11 14:38:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:19,388 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:19,388 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:19,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-03-11 14:38:19,388 INFO L428 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:19,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:19,388 INFO L82 PathProgramCache]: Analyzing trace with hash -594598006, now seen corresponding path program 288 times [2021-03-11 14:38:19,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:19,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340124959] [2021-03-11 14:38:19,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:19,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:19,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:19,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:19,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:19,412 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:19,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:19,421 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:19,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:19,435 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:19,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:19,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:19,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:19,482 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:19,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:19,511 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:19,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:19,542 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:19,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:19,580 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:19,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:19,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340124959] [2021-03-11 14:38:19,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:19,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:19,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849743478] [2021-03-11 14:38:19,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:19,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:19,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:19,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:19,618 INFO L87 Difference]: Start difference. First operand 1581 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:19,778 INFO L93 Difference]: Finished difference Result 2967 states and 11756 transitions. [2021-03-11 14:38:19,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:19,779 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:19,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:19,784 INFO L225 Difference]: With dead ends: 2967 [2021-03-11 14:38:19,784 INFO L226 Difference]: Without dead ends: 2929 [2021-03-11 14:38:19,784 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 257.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:19,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-03-11 14:38:19,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1560. [2021-03-11 14:38:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 4.499679281590764) internal successors, (7015), 1559 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 7015 transitions. [2021-03-11 14:38:19,830 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 7015 transitions. Word has length 28 [2021-03-11 14:38:19,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:19,830 INFO L480 AbstractCegarLoop]: Abstraction has 1560 states and 7015 transitions. [2021-03-11 14:38:19,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 7015 transitions. [2021-03-11 14:38:19,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:19,832 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:19,832 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:19,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-03-11 14:38:19,833 INFO L428 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:19,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:19,833 INFO L82 PathProgramCache]: Analyzing trace with hash 405091818, now seen corresponding path program 289 times [2021-03-11 14:38:19,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:19,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134330098] [2021-03-11 14:38:19,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:19,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:19,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:19,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:19,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:19,847 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:19,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:19,855 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:19,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:19,867 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:19,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:19,882 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:19,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:19,902 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:19,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:19,927 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:19,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:19,958 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:19,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:19,995 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:19,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:20,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134330098] [2021-03-11 14:38:20,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:20,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:20,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476030224] [2021-03-11 14:38:20,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:20,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:20,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:20,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:20,030 INFO L87 Difference]: Start difference. First operand 1560 states and 7015 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:20,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:20,196 INFO L93 Difference]: Finished difference Result 2913 states and 11649 transitions. [2021-03-11 14:38:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:20,197 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:20,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:20,202 INFO L225 Difference]: With dead ends: 2913 [2021-03-11 14:38:20,203 INFO L226 Difference]: Without dead ends: 2898 [2021-03-11 14:38:20,203 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 231.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:20,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-03-11 14:38:20,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 1573. [2021-03-11 14:38:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.489821882951654) internal successors, (7058), 1572 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:20,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7058 transitions. [2021-03-11 14:38:20,249 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7058 transitions. Word has length 28 [2021-03-11 14:38:20,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:20,249 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7058 transitions. [2021-03-11 14:38:20,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:20,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7058 transitions. [2021-03-11 14:38:20,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:20,251 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:20,251 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:20,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-03-11 14:38:20,251 INFO L428 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:20,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1149794316, now seen corresponding path program 290 times [2021-03-11 14:38:20,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:20,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486599660] [2021-03-11 14:38:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:20,266 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:20,274 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:20,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:20,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:20,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:20,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:20,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:20,320 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:20,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:20,345 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:20,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:20,375 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:20,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:20,411 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:20,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:20,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:20,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486599660] [2021-03-11 14:38:20,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:20,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:20,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283327289] [2021-03-11 14:38:20,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:20,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:20,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:20,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:20,445 INFO L87 Difference]: Start difference. First operand 1573 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:20,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:20,591 INFO L93 Difference]: Finished difference Result 2914 states and 11646 transitions. [2021-03-11 14:38:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:20,591 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:20,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:20,597 INFO L225 Difference]: With dead ends: 2914 [2021-03-11 14:38:20,597 INFO L226 Difference]: Without dead ends: 2893 [2021-03-11 14:38:20,597 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 229.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:20,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-03-11 14:38:20,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1568. [2021-03-11 14:38:20,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.495851946394384) internal successors, (7045), 1567 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7045 transitions. [2021-03-11 14:38:20,643 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7045 transitions. Word has length 28 [2021-03-11 14:38:20,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:20,643 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7045 transitions. [2021-03-11 14:38:20,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:20,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7045 transitions. [2021-03-11 14:38:20,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:20,645 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:20,645 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:20,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-03-11 14:38:20,645 INFO L428 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:20,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:20,646 INFO L82 PathProgramCache]: Analyzing trace with hash -130137984, now seen corresponding path program 291 times [2021-03-11 14:38:20,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:20,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441153068] [2021-03-11 14:38:20,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:20,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:20,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:20,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:20,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:20,668 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:20,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:20,680 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:20,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:20,696 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:20,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:20,717 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:20,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:20,743 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:20,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:20,775 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:20,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:20,813 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:20,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:20,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441153068] [2021-03-11 14:38:20,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:20,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:20,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641515517] [2021-03-11 14:38:20,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:20,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:20,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:20,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:20,848 INFO L87 Difference]: Start difference. First operand 1568 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:21,002 INFO L93 Difference]: Finished difference Result 2910 states and 11638 transitions. [2021-03-11 14:38:21,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:21,003 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:21,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:21,008 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:38:21,008 INFO L226 Difference]: Without dead ends: 2895 [2021-03-11 14:38:21,008 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:21,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-03-11 14:38:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 1572. [2021-03-11 14:38:21,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.488860598345004) internal successors, (7052), 1571 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7052 transitions. [2021-03-11 14:38:21,055 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7052 transitions. Word has length 28 [2021-03-11 14:38:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:21,055 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7052 transitions. [2021-03-11 14:38:21,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7052 transitions. [2021-03-11 14:38:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:21,057 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:21,057 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:21,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-03-11 14:38:21,057 INFO L428 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:21,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:21,057 INFO L82 PathProgramCache]: Analyzing trace with hash 43109708, now seen corresponding path program 292 times [2021-03-11 14:38:21,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:21,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349909590] [2021-03-11 14:38:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:21,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:21,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:21,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:21,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:21,071 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:21,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:21,079 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:21,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:21,092 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:21,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:21,108 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:21,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:21,128 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:21,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:21,153 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:21,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:21,183 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:21,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:21,220 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:21,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:21,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:21,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349909590] [2021-03-11 14:38:21,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:21,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:21,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437956624] [2021-03-11 14:38:21,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:21,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:21,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:21,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:21,254 INFO L87 Difference]: Start difference. First operand 1572 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:21,401 INFO L93 Difference]: Finished difference Result 2909 states and 11632 transitions. [2021-03-11 14:38:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:21,402 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:21,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:21,407 INFO L225 Difference]: With dead ends: 2909 [2021-03-11 14:38:21,407 INFO L226 Difference]: Without dead ends: 2891 [2021-03-11 14:38:21,408 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 231.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:21,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2021-03-11 14:38:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1568. [2021-03-11 14:38:21,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.4932992980216975) internal successors, (7041), 1567 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7041 transitions. [2021-03-11 14:38:21,465 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7041 transitions. Word has length 28 [2021-03-11 14:38:21,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:21,465 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7041 transitions. [2021-03-11 14:38:21,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7041 transitions. [2021-03-11 14:38:21,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:21,467 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:21,467 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:21,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-03-11 14:38:21,467 INFO L428 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:21,468 INFO L82 PathProgramCache]: Analyzing trace with hash -2069461824, now seen corresponding path program 293 times [2021-03-11 14:38:21,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:21,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829452083] [2021-03-11 14:38:21,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:21,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:21,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:21,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:21,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:21,482 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:21,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:21,490 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:21,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:21,502 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:21,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:21,519 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:21,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:21,539 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:21,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:21,565 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:21,596 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:21,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:21,634 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:21,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:21,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829452083] [2021-03-11 14:38:21,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:21,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:21,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462135154] [2021-03-11 14:38:21,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:21,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:21,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:21,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:21,670 INFO L87 Difference]: Start difference. First operand 1568 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:21,864 INFO L93 Difference]: Finished difference Result 2912 states and 11638 transitions. [2021-03-11 14:38:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:21,864 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:21,870 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:38:21,870 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:38:21,870 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:21,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:38:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1572. [2021-03-11 14:38:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.48631444939529) internal successors, (7048), 1571 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7048 transitions. [2021-03-11 14:38:21,917 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7048 transitions. Word has length 28 [2021-03-11 14:38:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:21,918 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7048 transitions. [2021-03-11 14:38:21,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7048 transitions. [2021-03-11 14:38:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:21,920 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:21,920 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:21,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-03-11 14:38:21,920 INFO L428 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:21,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1654050666, now seen corresponding path program 294 times [2021-03-11 14:38:21,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:21,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018999093] [2021-03-11 14:38:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:21,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:21,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:21,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:21,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:21,934 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:21,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:21,942 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:21,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:21,955 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:21,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:21,971 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:21,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:21,992 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:21,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:22,018 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:22,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:22,049 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:22,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:22,088 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:22,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:22,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018999093] [2021-03-11 14:38:22,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:22,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:22,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356240536] [2021-03-11 14:38:22,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:22,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:22,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:22,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:22,123 INFO L87 Difference]: Start difference. First operand 1572 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:22,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:22,282 INFO L93 Difference]: Finished difference Result 2910 states and 11630 transitions. [2021-03-11 14:38:22,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:22,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:22,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:22,288 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:38:22,289 INFO L226 Difference]: Without dead ends: 2888 [2021-03-11 14:38:22,289 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-03-11 14:38:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1564. [2021-03-11 14:38:22,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.497760716570697) internal successors, (7030), 1563 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:22,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7030 transitions. [2021-03-11 14:38:22,337 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7030 transitions. Word has length 28 [2021-03-11 14:38:22,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:22,337 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7030 transitions. [2021-03-11 14:38:22,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:22,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7030 transitions. [2021-03-11 14:38:22,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:22,339 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:22,339 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:22,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-03-11 14:38:22,339 INFO L428 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:22,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:22,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1499183406, now seen corresponding path program 295 times [2021-03-11 14:38:22,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:22,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007361319] [2021-03-11 14:38:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:22,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:22,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:22,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:22,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:22,354 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:22,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:22,362 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:22,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:22,374 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:22,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:22,391 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:22,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:22,412 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:22,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:22,438 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:22,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:22,471 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:22,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:22,509 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:22,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:22,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007361319] [2021-03-11 14:38:22,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:22,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:22,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228695356] [2021-03-11 14:38:22,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:22,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:22,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:22,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:22,545 INFO L87 Difference]: Start difference. First operand 1564 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:22,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:22,699 INFO L93 Difference]: Finished difference Result 2920 states and 11664 transitions. [2021-03-11 14:38:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:22,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:22,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:22,705 INFO L225 Difference]: With dead ends: 2920 [2021-03-11 14:38:22,705 INFO L226 Difference]: Without dead ends: 2905 [2021-03-11 14:38:22,706 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:22,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-03-11 14:38:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 1574. [2021-03-11 14:38:22,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.486967577876669) internal successors, (7058), 1573 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7058 transitions. [2021-03-11 14:38:22,754 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7058 transitions. Word has length 28 [2021-03-11 14:38:22,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:22,754 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7058 transitions. [2021-03-11 14:38:22,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:22,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7058 transitions. [2021-03-11 14:38:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:22,756 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:22,756 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:22,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-03-11 14:38:22,756 INFO L428 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:22,756 INFO L82 PathProgramCache]: Analyzing trace with hash -2051081392, now seen corresponding path program 296 times [2021-03-11 14:38:22,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:22,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007484299] [2021-03-11 14:38:22,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:22,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:22,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:22,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:22,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:22,771 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:22,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:22,779 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:22,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:22,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:22,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:22,808 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:22,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:22,829 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:22,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:22,855 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:22,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:22,887 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:22,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:22,926 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:22,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:22,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007484299] [2021-03-11 14:38:22,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:22,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:22,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977091668] [2021-03-11 14:38:22,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:22,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:22,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:22,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:22,961 INFO L87 Difference]: Start difference. First operand 1574 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:23,122 INFO L93 Difference]: Finished difference Result 2921 states and 11661 transitions. [2021-03-11 14:38:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:23,122 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:23,127 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:38:23,127 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:38:23,128 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 239.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:38:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1569. [2021-03-11 14:38:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.49234693877551) internal successors, (7044), 1568 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7044 transitions. [2021-03-11 14:38:23,173 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7044 transitions. Word has length 28 [2021-03-11 14:38:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:23,173 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7044 transitions. [2021-03-11 14:38:23,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7044 transitions. [2021-03-11 14:38:23,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:23,176 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:23,176 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:23,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-03-11 14:38:23,176 INFO L428 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:23,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:23,176 INFO L82 PathProgramCache]: Analyzing trace with hash -109131776, now seen corresponding path program 297 times [2021-03-11 14:38:23,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:23,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34872700] [2021-03-11 14:38:23,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:23,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:23,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:23,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:23,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:23,190 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:23,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:23,198 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:23,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:23,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:23,227 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:23,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:23,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:23,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:23,273 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:23,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:23,304 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:23,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:23,341 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:23,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:23,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34872700] [2021-03-11 14:38:23,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:23,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:23,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879101566] [2021-03-11 14:38:23,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:23,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:23,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:23,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:23,376 INFO L87 Difference]: Start difference. First operand 1569 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:23,571 INFO L93 Difference]: Finished difference Result 2921 states and 11661 transitions. [2021-03-11 14:38:23,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:23,571 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:23,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:23,577 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:38:23,577 INFO L226 Difference]: Without dead ends: 2906 [2021-03-11 14:38:23,577 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:23,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2021-03-11 14:38:23,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1574. [2021-03-11 14:38:23,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.483788938334393) internal successors, (7053), 1573 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:23,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7053 transitions. [2021-03-11 14:38:23,626 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7053 transitions. Word has length 28 [2021-03-11 14:38:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:23,626 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7053 transitions. [2021-03-11 14:38:23,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7053 transitions. [2021-03-11 14:38:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:23,628 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:23,628 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:23,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-03-11 14:38:23,628 INFO L428 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:23,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1553520912, now seen corresponding path program 298 times [2021-03-11 14:38:23,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:23,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836966948] [2021-03-11 14:38:23,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:23,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:23,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:23,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:23,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:23,642 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:23,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:23,651 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:23,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:23,663 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:23,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:23,680 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:23,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:23,701 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:23,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:23,728 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:23,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:23,759 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:23,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:23,798 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:23,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:23,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:23,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836966948] [2021-03-11 14:38:23,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:23,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:23,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33168092] [2021-03-11 14:38:23,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:23,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:23,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:23,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:23,834 INFO L87 Difference]: Start difference. First operand 1574 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:24,029 INFO L93 Difference]: Finished difference Result 2923 states and 11660 transitions. [2021-03-11 14:38:24,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:24,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:24,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:24,035 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:38:24,035 INFO L226 Difference]: Without dead ends: 2901 [2021-03-11 14:38:24,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2021-03-11 14:38:24,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1569. [2021-03-11 14:38:24,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.489158163265306) internal successors, (7039), 1568 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7039 transitions. [2021-03-11 14:38:24,081 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7039 transitions. Word has length 28 [2021-03-11 14:38:24,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:24,081 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7039 transitions. [2021-03-11 14:38:24,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7039 transitions. [2021-03-11 14:38:24,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:24,083 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:24,083 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:24,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-03-11 14:38:24,083 INFO L428 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:24,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:24,083 INFO L82 PathProgramCache]: Analyzing trace with hash -2048455616, now seen corresponding path program 299 times [2021-03-11 14:38:24,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:24,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860351852] [2021-03-11 14:38:24,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:24,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:24,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:24,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:24,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:24,097 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:24,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:24,105 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:24,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:24,118 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:24,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:24,134 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:24,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:24,154 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:24,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:24,180 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:24,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:24,212 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:24,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:24,250 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:24,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:24,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860351852] [2021-03-11 14:38:24,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:24,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:24,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627442416] [2021-03-11 14:38:24,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:24,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:24,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:24,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:24,285 INFO L87 Difference]: Start difference. First operand 1569 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:24,474 INFO L93 Difference]: Finished difference Result 2924 states and 11663 transitions. [2021-03-11 14:38:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:24,475 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:24,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:24,480 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:38:24,480 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:38:24,480 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:38:24,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1575. [2021-03-11 14:38:24,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.479034307496823) internal successors, (7050), 1574 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7050 transitions. [2021-03-11 14:38:24,526 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7050 transitions. Word has length 28 [2021-03-11 14:38:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:24,526 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7050 transitions. [2021-03-11 14:38:24,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7050 transitions. [2021-03-11 14:38:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:24,528 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:24,528 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:24,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-03-11 14:38:24,528 INFO L428 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:24,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:24,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1130505426, now seen corresponding path program 300 times [2021-03-11 14:38:24,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:24,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611499250] [2021-03-11 14:38:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:24,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:24,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:24,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:24,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:24,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:24,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:24,551 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:24,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:24,563 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:24,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:24,579 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:24,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:24,599 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:24,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:24,625 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:24,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:24,657 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:24,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:24,695 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:24,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:24,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611499250] [2021-03-11 14:38:24,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:24,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:24,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341608975] [2021-03-11 14:38:24,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:24,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:24,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:24,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:24,730 INFO L87 Difference]: Start difference. First operand 1575 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:24,902 INFO L93 Difference]: Finished difference Result 2925 states and 11659 transitions. [2021-03-11 14:38:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:24,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:24,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:24,907 INFO L225 Difference]: With dead ends: 2925 [2021-03-11 14:38:24,907 INFO L226 Difference]: Without dead ends: 2897 [2021-03-11 14:38:24,908 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:24,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2021-03-11 14:38:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1564. [2021-03-11 14:38:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.495201535508637) internal successors, (7026), 1563 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7026 transitions. [2021-03-11 14:38:24,953 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7026 transitions. Word has length 28 [2021-03-11 14:38:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:24,953 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7026 transitions. [2021-03-11 14:38:24,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7026 transitions. [2021-03-11 14:38:24,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:24,955 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:24,955 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:24,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-03-11 14:38:24,955 INFO L428 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:24,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:24,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1551698926, now seen corresponding path program 301 times [2021-03-11 14:38:24,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:24,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142825058] [2021-03-11 14:38:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:24,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:24,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:24,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:24,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:24,969 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:24,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:24,977 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:24,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:24,990 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:24,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:25,006 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:25,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:25,026 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:25,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:25,051 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:25,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:25,083 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:25,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:25,121 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:25,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:25,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142825058] [2021-03-11 14:38:25,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:25,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:25,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319405165] [2021-03-11 14:38:25,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:25,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:25,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:25,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:25,156 INFO L87 Difference]: Start difference. First operand 1564 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:25,305 INFO L93 Difference]: Finished difference Result 2911 states and 11636 transitions. [2021-03-11 14:38:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:25,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:25,311 INFO L225 Difference]: With dead ends: 2911 [2021-03-11 14:38:25,311 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:38:25,311 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:38:25,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1572. [2021-03-11 14:38:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.48631444939529) internal successors, (7048), 1571 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7048 transitions. [2021-03-11 14:38:25,357 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7048 transitions. Word has length 28 [2021-03-11 14:38:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:25,357 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7048 transitions. [2021-03-11 14:38:25,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7048 transitions. [2021-03-11 14:38:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:25,359 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:25,359 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:25,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-03-11 14:38:25,359 INFO L428 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:25,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1724946618, now seen corresponding path program 302 times [2021-03-11 14:38:25,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:25,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386362609] [2021-03-11 14:38:25,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:25,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:25,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:25,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:25,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:25,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:25,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:25,382 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:25,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:25,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:25,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:25,411 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:25,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:25,432 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:25,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:25,457 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:25,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:25,489 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:25,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:25,526 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:25,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:25,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386362609] [2021-03-11 14:38:25,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:25,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:25,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616321052] [2021-03-11 14:38:25,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:25,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:25,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:25,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:25,561 INFO L87 Difference]: Start difference. First operand 1572 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:25,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:25,736 INFO L93 Difference]: Finished difference Result 2910 states and 11630 transitions. [2021-03-11 14:38:25,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:25,737 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:25,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:25,742 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:38:25,742 INFO L226 Difference]: Without dead ends: 2892 [2021-03-11 14:38:25,742 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:25,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2021-03-11 14:38:25,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 1568. [2021-03-11 14:38:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.490746649649011) internal successors, (7037), 1567 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7037 transitions. [2021-03-11 14:38:25,789 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7037 transitions. Word has length 28 [2021-03-11 14:38:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:25,789 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7037 transitions. [2021-03-11 14:38:25,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7037 transitions. [2021-03-11 14:38:25,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:25,791 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:25,791 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:25,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-03-11 14:38:25,791 INFO L428 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash 478613546, now seen corresponding path program 303 times [2021-03-11 14:38:25,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:25,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436922609] [2021-03-11 14:38:25,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:25,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:25,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:25,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:25,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:25,805 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:25,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:25,813 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:25,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:25,826 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:25,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:25,842 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:25,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:25,862 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:25,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:25,887 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:25,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:25,918 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:25,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:25,956 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:25,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:25,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436922609] [2021-03-11 14:38:25,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:25,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:25,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255913548] [2021-03-11 14:38:25,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:25,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:25,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:25,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:25,992 INFO L87 Difference]: Start difference. First operand 1568 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:26,139 INFO L93 Difference]: Finished difference Result 2915 states and 11641 transitions. [2021-03-11 14:38:26,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:26,140 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:26,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:26,145 INFO L225 Difference]: With dead ends: 2915 [2021-03-11 14:38:26,145 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:38:26,145 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:26,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:38:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1573. [2021-03-11 14:38:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.482188295165394) internal successors, (7046), 1572 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7046 transitions. [2021-03-11 14:38:26,191 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7046 transitions. Word has length 28 [2021-03-11 14:38:26,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:26,191 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7046 transitions. [2021-03-11 14:38:26,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7046 transitions. [2021-03-11 14:38:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:26,193 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:26,193 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:26,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-03-11 14:38:26,193 INFO L428 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:26,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2141266234, now seen corresponding path program 304 times [2021-03-11 14:38:26,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:26,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930071814] [2021-03-11 14:38:26,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:26,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:26,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:26,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:26,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:26,207 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:26,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:26,216 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:26,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:26,228 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:26,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:26,244 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:26,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:26,264 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:26,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:26,289 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:26,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:26,321 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:26,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:26,359 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:26,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:26,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930071814] [2021-03-11 14:38:26,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:26,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:26,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505193500] [2021-03-11 14:38:26,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:26,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:26,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:26,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:26,394 INFO L87 Difference]: Start difference. First operand 1573 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:26,524 INFO L93 Difference]: Finished difference Result 2917 states and 11640 transitions. [2021-03-11 14:38:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:26,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:26,530 INFO L225 Difference]: With dead ends: 2917 [2021-03-11 14:38:26,530 INFO L226 Difference]: Without dead ends: 2895 [2021-03-11 14:38:26,530 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 235.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:26,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-03-11 14:38:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 1568. [2021-03-11 14:38:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.488194001276324) internal successors, (7033), 1567 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7033 transitions. [2021-03-11 14:38:26,575 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7033 transitions. Word has length 28 [2021-03-11 14:38:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:26,575 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7033 transitions. [2021-03-11 14:38:26,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7033 transitions. [2021-03-11 14:38:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:26,577 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:26,577 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:26,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-03-11 14:38:26,577 INFO L428 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:26,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:26,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1727572394, now seen corresponding path program 305 times [2021-03-11 14:38:26,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:26,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204344085] [2021-03-11 14:38:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:26,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:26,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:26,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:26,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:26,592 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:26,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:26,600 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:26,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:26,612 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:26,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:26,628 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:26,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:26,649 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:26,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:26,674 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:26,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:26,724 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:26,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:26,762 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:26,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:26,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204344085] [2021-03-11 14:38:26,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:26,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:26,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917255792] [2021-03-11 14:38:26,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:26,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:26,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:26,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:26,798 INFO L87 Difference]: Start difference. First operand 1568 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:26,928 INFO L93 Difference]: Finished difference Result 2912 states and 11630 transitions. [2021-03-11 14:38:26,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:26,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:26,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:26,934 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:38:26,934 INFO L226 Difference]: Without dead ends: 2898 [2021-03-11 14:38:26,935 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 257.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:26,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-03-11 14:38:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 1572. [2021-03-11 14:38:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.481222151495863) internal successors, (7040), 1571 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7040 transitions. [2021-03-11 14:38:26,981 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7040 transitions. Word has length 28 [2021-03-11 14:38:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:26,981 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7040 transitions. [2021-03-11 14:38:26,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:26,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7040 transitions. [2021-03-11 14:38:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:26,983 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:26,983 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:26,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-03-11 14:38:26,983 INFO L428 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:26,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1077989906, now seen corresponding path program 306 times [2021-03-11 14:38:26,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:26,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808276767] [2021-03-11 14:38:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:26,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:26,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:26,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:26,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:26,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:26,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:27,006 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:27,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:27,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:27,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:27,035 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:27,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:27,055 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:27,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:27,081 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:27,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:27,132 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:27,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:27,171 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:27,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:27,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808276767] [2021-03-11 14:38:27,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:27,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:27,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871555580] [2021-03-11 14:38:27,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:27,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:27,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:27,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:27,207 INFO L87 Difference]: Start difference. First operand 1572 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:27,354 INFO L93 Difference]: Finished difference Result 2915 states and 11632 transitions. [2021-03-11 14:38:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:27,359 INFO L225 Difference]: With dead ends: 2915 [2021-03-11 14:38:27,359 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:38:27,360 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:27,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:38:27,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1564. [2021-03-11 14:38:27,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.492642354446577) internal successors, (7022), 1563 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7022 transitions. [2021-03-11 14:38:27,405 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7022 transitions. Word has length 28 [2021-03-11 14:38:27,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:27,405 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7022 transitions. [2021-03-11 14:38:27,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7022 transitions. [2021-03-11 14:38:27,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:27,408 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:27,408 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:27,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-03-11 14:38:27,408 INFO L428 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:27,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:27,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1988062768, now seen corresponding path program 307 times [2021-03-11 14:38:27,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:27,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562241955] [2021-03-11 14:38:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:27,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:27,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:27,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:27,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:27,422 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:27,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:27,430 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:27,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:27,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:27,459 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:27,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:27,480 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:27,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:27,506 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:27,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:27,537 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:27,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:27,575 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:27,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:27,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562241955] [2021-03-11 14:38:27,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:27,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:27,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062945470] [2021-03-11 14:38:27,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:27,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:27,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:27,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:27,611 INFO L87 Difference]: Start difference. First operand 1564 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:27,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:27,742 INFO L93 Difference]: Finished difference Result 2915 states and 11641 transitions. [2021-03-11 14:38:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:27,742 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:27,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:27,748 INFO L225 Difference]: With dead ends: 2915 [2021-03-11 14:38:27,748 INFO L226 Difference]: Without dead ends: 2899 [2021-03-11 14:38:27,748 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:27,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-03-11 14:38:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1572. [2021-03-11 14:38:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.483768300445576) internal successors, (7044), 1571 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7044 transitions. [2021-03-11 14:38:27,795 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7044 transitions. Word has length 28 [2021-03-11 14:38:27,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:27,795 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7044 transitions. [2021-03-11 14:38:27,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7044 transitions. [2021-03-11 14:38:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:27,797 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:27,797 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:27,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-03-11 14:38:27,797 INFO L428 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:27,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1735449722, now seen corresponding path program 308 times [2021-03-11 14:38:27,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:27,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531493336] [2021-03-11 14:38:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:27,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:27,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:27,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:27,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:27,811 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:27,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:27,820 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:27,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:27,832 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:27,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:27,849 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:27,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:27,870 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:27,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:27,896 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:27,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:27,927 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:27,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:27,965 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:27,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:28,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:28,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531493336] [2021-03-11 14:38:28,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:28,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:28,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864803913] [2021-03-11 14:38:28,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:28,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:28,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:28,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:28,001 INFO L87 Difference]: Start difference. First operand 1572 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:28,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:28,142 INFO L93 Difference]: Finished difference Result 2913 states and 11633 transitions. [2021-03-11 14:38:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:28,143 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:28,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:28,148 INFO L225 Difference]: With dead ends: 2913 [2021-03-11 14:38:28,148 INFO L226 Difference]: Without dead ends: 2895 [2021-03-11 14:38:28,148 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 240.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-03-11 14:38:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 1568. [2021-03-11 14:38:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.488194001276324) internal successors, (7033), 1567 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7033 transitions. [2021-03-11 14:38:28,195 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7033 transitions. Word has length 28 [2021-03-11 14:38:28,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:28,195 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7033 transitions. [2021-03-11 14:38:28,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:28,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7033 transitions. [2021-03-11 14:38:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:28,197 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:28,197 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:28,197 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-03-11 14:38:28,197 INFO L428 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:28,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:28,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1233819148, now seen corresponding path program 309 times [2021-03-11 14:38:28,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:28,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081506865] [2021-03-11 14:38:28,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:28,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:28,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:28,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:28,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:28,215 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:28,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:28,223 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:28,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:28,235 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:28,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:28,251 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:28,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:28,272 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:28,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:28,297 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:28,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:28,329 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:28,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:28,367 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:28,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:28,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081506865] [2021-03-11 14:38:28,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:28,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:28,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943350999] [2021-03-11 14:38:28,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:28,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:28,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:28,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:28,404 INFO L87 Difference]: Start difference. First operand 1568 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:28,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:28,576 INFO L93 Difference]: Finished difference Result 2920 states and 11649 transitions. [2021-03-11 14:38:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:28,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:28,582 INFO L225 Difference]: With dead ends: 2920 [2021-03-11 14:38:28,582 INFO L226 Difference]: Without dead ends: 2904 [2021-03-11 14:38:28,582 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:28,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2021-03-11 14:38:28,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1574. [2021-03-11 14:38:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.478067387158296) internal successors, (7044), 1573 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7044 transitions. [2021-03-11 14:38:28,630 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7044 transitions. Word has length 28 [2021-03-11 14:38:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:28,630 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7044 transitions. [2021-03-11 14:38:28,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7044 transitions. [2021-03-11 14:38:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:28,632 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:28,633 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:28,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-03-11 14:38:28,633 INFO L428 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:28,633 INFO L82 PathProgramCache]: Analyzing trace with hash -2143197958, now seen corresponding path program 310 times [2021-03-11 14:38:28,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:28,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547968904] [2021-03-11 14:38:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:28,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:28,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:28,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:28,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:28,647 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:28,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:28,656 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:28,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:28,669 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:28,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:28,685 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:28,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:28,707 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:28,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:28,733 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:28,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:28,765 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:28,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:28,804 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:28,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:28,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547968904] [2021-03-11 14:38:28,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:28,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:28,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588004100] [2021-03-11 14:38:28,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:28,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:28,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:28,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:28,840 INFO L87 Difference]: Start difference. First operand 1574 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:28,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:28,990 INFO L93 Difference]: Finished difference Result 2921 states and 11645 transitions. [2021-03-11 14:38:28,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:28,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:28,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:28,997 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:38:28,997 INFO L226 Difference]: Without dead ends: 2898 [2021-03-11 14:38:28,997 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 244.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:29,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-03-11 14:38:29,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 1568. [2021-03-11 14:38:29,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.485641352903637) internal successors, (7029), 1567 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7029 transitions. [2021-03-11 14:38:29,043 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7029 transitions. Word has length 28 [2021-03-11 14:38:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:29,043 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7029 transitions. [2021-03-11 14:38:29,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7029 transitions. [2021-03-11 14:38:29,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:29,045 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:29,045 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:29,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-03-11 14:38:29,045 INFO L428 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash 127134540, now seen corresponding path program 311 times [2021-03-11 14:38:29,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:29,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036073345] [2021-03-11 14:38:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:29,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:29,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:29,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:29,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:29,060 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:29,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:29,068 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:29,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:29,081 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:29,097 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:29,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:29,117 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:29,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:29,142 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:29,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:29,194 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:29,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:29,233 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:29,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:29,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036073345] [2021-03-11 14:38:29,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:29,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:29,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367337954] [2021-03-11 14:38:29,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:29,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:29,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:29,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:29,269 INFO L87 Difference]: Start difference. First operand 1568 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:29,399 INFO L93 Difference]: Finished difference Result 2914 states and 11631 transitions. [2021-03-11 14:38:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:29,405 INFO L225 Difference]: With dead ends: 2914 [2021-03-11 14:38:29,405 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:38:29,406 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:29,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:38:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1572. [2021-03-11 14:38:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.478676002546149) internal successors, (7036), 1571 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7036 transitions. [2021-03-11 14:38:29,451 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7036 transitions. Word has length 28 [2021-03-11 14:38:29,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:29,451 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7036 transitions. [2021-03-11 14:38:29,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7036 transitions. [2021-03-11 14:38:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:29,454 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:29,454 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:29,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-03-11 14:38:29,454 INFO L428 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:29,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:29,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1616539536, now seen corresponding path program 312 times [2021-03-11 14:38:29,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:29,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582399303] [2021-03-11 14:38:29,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:29,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:29,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:29,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:29,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:29,471 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:29,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:29,479 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:29,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:29,492 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:29,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:29,508 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:38:29,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:38:29,529 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:29,554 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:29,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:29,608 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:29,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:29,647 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:29,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:29,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582399303] [2021-03-11 14:38:29,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:29,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:29,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226978930] [2021-03-11 14:38:29,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:29,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:29,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:29,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:29,683 INFO L87 Difference]: Start difference. First operand 1572 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:29,818 INFO L93 Difference]: Finished difference Result 2917 states and 11633 transitions. [2021-03-11 14:38:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:29,818 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:29,824 INFO L225 Difference]: With dead ends: 2917 [2021-03-11 14:38:29,824 INFO L226 Difference]: Without dead ends: 2888 [2021-03-11 14:38:29,824 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 264.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-03-11 14:38:29,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1560. [2021-03-11 14:38:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 4.4971135343168696) internal successors, (7011), 1559 states have internal predecessors, (7011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 7011 transitions. [2021-03-11 14:38:29,870 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 7011 transitions. Word has length 28 [2021-03-11 14:38:29,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:29,870 INFO L480 AbstractCegarLoop]: Abstraction has 1560 states and 7011 transitions. [2021-03-11 14:38:29,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:29,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 7011 transitions. [2021-03-11 14:38:29,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:29,872 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:29,872 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:29,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-03-11 14:38:29,872 INFO L428 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:29,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:29,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1953338296, now seen corresponding path program 313 times [2021-03-11 14:38:29,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:29,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013062068] [2021-03-11 14:38:29,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:29,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:29,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:29,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:29,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:29,887 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:29,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:29,896 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:29,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:29,909 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:29,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:29,927 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:29,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:29,949 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:29,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:29,992 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:29,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:30,044 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:30,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:30,084 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:30,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013062068] [2021-03-11 14:38:30,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:30,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:30,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193938502] [2021-03-11 14:38:30,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:30,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:30,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:30,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:30,122 INFO L87 Difference]: Start difference. First operand 1560 states and 7011 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:30,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:30,280 INFO L93 Difference]: Finished difference Result 2937 states and 11697 transitions. [2021-03-11 14:38:30,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:30,281 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:30,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:30,286 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:38:30,286 INFO L226 Difference]: Without dead ends: 2922 [2021-03-11 14:38:30,286 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 285.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2021-03-11 14:38:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1576. [2021-03-11 14:38:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.484444444444445) internal successors, (7063), 1575 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7063 transitions. [2021-03-11 14:38:30,335 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7063 transitions. Word has length 28 [2021-03-11 14:38:30,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:30,335 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7063 transitions. [2021-03-11 14:38:30,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:30,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7063 transitions. [2021-03-11 14:38:30,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:30,338 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:30,338 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:30,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-03-11 14:38:30,338 INFO L428 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:30,338 INFO L82 PathProgramCache]: Analyzing trace with hash -463933300, now seen corresponding path program 314 times [2021-03-11 14:38:30,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:30,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594009538] [2021-03-11 14:38:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:30,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:30,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:30,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:30,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:30,354 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:30,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:30,363 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:30,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:30,377 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:30,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:30,394 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:30,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:30,417 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:30,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:30,459 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:30,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:30,512 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:30,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:30,554 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:30,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:30,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594009538] [2021-03-11 14:38:30,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:30,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:30,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84857099] [2021-03-11 14:38:30,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:30,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:30,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:30,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:30,592 INFO L87 Difference]: Start difference. First operand 1576 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:30,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:30,708 INFO L93 Difference]: Finished difference Result 2942 states and 11701 transitions. [2021-03-11 14:38:30,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:30,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:30,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:30,714 INFO L225 Difference]: With dead ends: 2942 [2021-03-11 14:38:30,714 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:38:30,715 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:38:30,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1570. [2021-03-11 14:38:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.491395793499044) internal successors, (7047), 1569 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7047 transitions. [2021-03-11 14:38:30,763 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7047 transitions. Word has length 28 [2021-03-11 14:38:30,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:30,763 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7047 transitions. [2021-03-11 14:38:30,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:30,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7047 transitions. [2021-03-11 14:38:30,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:30,766 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:30,766 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:30,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-03-11 14:38:30,766 INFO L428 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:30,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:30,766 INFO L82 PathProgramCache]: Analyzing trace with hash 195458240, now seen corresponding path program 315 times [2021-03-11 14:38:30,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:30,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092824306] [2021-03-11 14:38:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:30,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:30,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:30,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:30,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:30,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:30,789 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:30,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:30,803 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:30,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:30,821 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:30,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:30,843 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:30,885 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:30,919 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:30,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:30,960 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:30,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:30,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092824306] [2021-03-11 14:38:30,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:30,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:30,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804799189] [2021-03-11 14:38:30,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:30,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:30,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:30,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:30,997 INFO L87 Difference]: Start difference. First operand 1570 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:31,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:31,146 INFO L93 Difference]: Finished difference Result 2929 states and 11676 transitions. [2021-03-11 14:38:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:31,146 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:31,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:31,152 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:38:31,152 INFO L226 Difference]: Without dead ends: 2914 [2021-03-11 14:38:31,152 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-03-11 14:38:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1574. [2021-03-11 14:38:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.484424666242848) internal successors, (7054), 1573 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7054 transitions. [2021-03-11 14:38:31,201 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:31,201 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7054 transitions. [2021-03-11 14:38:31,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7054 transitions. [2021-03-11 14:38:31,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:31,203 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:31,203 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:31,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-03-11 14:38:31,203 INFO L428 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:31,204 INFO L82 PathProgramCache]: Analyzing trace with hash 368705932, now seen corresponding path program 316 times [2021-03-11 14:38:31,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:31,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182847929] [2021-03-11 14:38:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:31,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:31,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:31,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:31,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:31,218 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:31,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:31,227 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:31,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:31,241 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:31,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:31,259 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:31,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:31,281 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:31,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:31,324 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:31,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:31,358 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:31,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:31,398 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:31,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182847929] [2021-03-11 14:38:31,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:31,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:31,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665829123] [2021-03-11 14:38:31,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:31,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:31,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:31,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:31,435 INFO L87 Difference]: Start difference. First operand 1574 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:31,572 INFO L93 Difference]: Finished difference Result 2928 states and 11670 transitions. [2021-03-11 14:38:31,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:31,573 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:31,578 INFO L225 Difference]: With dead ends: 2928 [2021-03-11 14:38:31,579 INFO L226 Difference]: Without dead ends: 2910 [2021-03-11 14:38:31,579 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2021-03-11 14:38:31,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 1570. [2021-03-11 14:38:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.488846398980242) internal successors, (7043), 1569 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:31,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7043 transitions. [2021-03-11 14:38:31,625 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7043 transitions. Word has length 28 [2021-03-11 14:38:31,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:31,625 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7043 transitions. [2021-03-11 14:38:31,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7043 transitions. [2021-03-11 14:38:31,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:31,627 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:31,627 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:31,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-03-11 14:38:31,627 INFO L428 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:31,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:31,627 INFO L82 PathProgramCache]: Analyzing trace with hash 611777856, now seen corresponding path program 317 times [2021-03-11 14:38:31,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:31,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668448405] [2021-03-11 14:38:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:31,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:31,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:31,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:31,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:31,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:31,653 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:31,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:31,666 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:31,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:31,683 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:31,704 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:31,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:31,746 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:31,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:31,795 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:31,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:31,834 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:31,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:31,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668448405] [2021-03-11 14:38:31,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:31,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:31,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193739620] [2021-03-11 14:38:31,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:31,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:31,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:31,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:31,871 INFO L87 Difference]: Start difference. First operand 1570 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:32,015 INFO L93 Difference]: Finished difference Result 2940 states and 11692 transitions. [2021-03-11 14:38:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:32,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:32,021 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:38:32,021 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:38:32,021 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 251.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:32,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:38:32,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1575. [2021-03-11 14:38:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.479669631512071) internal successors, (7051), 1574 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7051 transitions. [2021-03-11 14:38:32,067 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7051 transitions. Word has length 28 [2021-03-11 14:38:32,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:32,067 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7051 transitions. [2021-03-11 14:38:32,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7051 transitions. [2021-03-11 14:38:32,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:32,069 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:32,069 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:32,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-03-11 14:38:32,069 INFO L428 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:32,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:32,070 INFO L82 PathProgramCache]: Analyzing trace with hash -704379448, now seen corresponding path program 318 times [2021-03-11 14:38:32,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:32,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173927427] [2021-03-11 14:38:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:32,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:32,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:32,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:32,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:32,084 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:32,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:32,093 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:32,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:32,106 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:32,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:32,122 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:32,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:32,149 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:32,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:32,195 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:32,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:32,243 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:32,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:32,282 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:32,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:32,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173927427] [2021-03-11 14:38:32,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:32,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:32,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151712294] [2021-03-11 14:38:32,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:32,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:32,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:32,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:32,320 INFO L87 Difference]: Start difference. First operand 1575 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:32,456 INFO L93 Difference]: Finished difference Result 2934 states and 11676 transitions. [2021-03-11 14:38:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:32,456 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:32,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:32,462 INFO L225 Difference]: With dead ends: 2934 [2021-03-11 14:38:32,462 INFO L226 Difference]: Without dead ends: 2910 [2021-03-11 14:38:32,462 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 286.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2021-03-11 14:38:32,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 1565. [2021-03-11 14:38:32,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.494245524296675) internal successors, (7029), 1564 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7029 transitions. [2021-03-11 14:38:32,529 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7029 transitions. Word has length 28 [2021-03-11 14:38:32,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:32,529 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7029 transitions. [2021-03-11 14:38:32,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7029 transitions. [2021-03-11 14:38:32,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:32,532 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:32,532 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:32,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-03-11 14:38:32,532 INFO L428 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:32,532 INFO L82 PathProgramCache]: Analyzing trace with hash -859246708, now seen corresponding path program 319 times [2021-03-11 14:38:32,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:32,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955906578] [2021-03-11 14:38:32,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:32,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:32,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:32,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:32,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:32,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:32,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:32,555 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:32,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:32,567 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:32,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:32,582 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:32,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:32,602 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:32,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:32,628 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:32,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:32,677 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:32,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:32,714 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:32,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:32,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955906578] [2021-03-11 14:38:32,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:32,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:32,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626719860] [2021-03-11 14:38:32,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:32,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:32,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:32,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:32,749 INFO L87 Difference]: Start difference. First operand 1565 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:32,891 INFO L93 Difference]: Finished difference Result 2945 states and 11714 transitions. [2021-03-11 14:38:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:32,892 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:32,897 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:38:32,897 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:38:32,897 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 251.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:32,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:38:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1577. [2021-03-11 14:38:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.480964467005077) internal successors, (7062), 1576 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7062 transitions. [2021-03-11 14:38:32,943 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7062 transitions. Word has length 28 [2021-03-11 14:38:32,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:32,944 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7062 transitions. [2021-03-11 14:38:32,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:32,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7062 transitions. [2021-03-11 14:38:32,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:32,946 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:32,946 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:32,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-03-11 14:38:32,946 INFO L428 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:32,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:32,946 INFO L82 PathProgramCache]: Analyzing trace with hash 630158288, now seen corresponding path program 320 times [2021-03-11 14:38:32,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:32,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094566008] [2021-03-11 14:38:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:32,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:32,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:32,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:32,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:32,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:32,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:32,970 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:32,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:32,982 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:32,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:32,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:32,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:33,018 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:33,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:33,043 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:33,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:33,093 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:33,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:33,131 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:33,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:33,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094566008] [2021-03-11 14:38:33,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:33,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:33,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342158375] [2021-03-11 14:38:33,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:33,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:33,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:33,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:33,166 INFO L87 Difference]: Start difference. First operand 1577 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:33,285 INFO L93 Difference]: Finished difference Result 2950 states and 11718 transitions. [2021-03-11 14:38:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:33,291 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:38:33,291 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:38:33,291 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 229.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:33,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:38:33,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1571. [2021-03-11 14:38:33,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.487261146496815) internal successors, (7045), 1570 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7045 transitions. [2021-03-11 14:38:33,337 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7045 transitions. Word has length 28 [2021-03-11 14:38:33,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:33,337 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7045 transitions. [2021-03-11 14:38:33,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:33,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7045 transitions. [2021-03-11 14:38:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:33,339 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:33,339 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:33,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-03-11 14:38:33,339 INFO L428 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:33,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:33,339 INFO L82 PathProgramCache]: Analyzing trace with hash 216464448, now seen corresponding path program 321 times [2021-03-11 14:38:33,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:33,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681075681] [2021-03-11 14:38:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:33,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:33,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:33,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:33,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:33,353 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:33,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:33,361 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:33,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:33,373 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:33,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:33,389 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:33,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:33,409 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:33,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:33,434 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:33,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:33,465 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:33,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:33,503 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:33,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:33,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681075681] [2021-03-11 14:38:33,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:33,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:33,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190563363] [2021-03-11 14:38:33,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:33,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:33,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:33,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:33,538 INFO L87 Difference]: Start difference. First operand 1571 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:33,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:33,685 INFO L93 Difference]: Finished difference Result 2941 states and 11701 transitions. [2021-03-11 14:38:33,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:33,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:33,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:33,691 INFO L225 Difference]: With dead ends: 2941 [2021-03-11 14:38:33,691 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:38:33,692 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:38:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1576. [2021-03-11 14:38:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.4787301587301585) internal successors, (7054), 1575 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7054 transitions. [2021-03-11 14:38:33,739 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:33,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:33,739 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7054 transitions. [2021-03-11 14:38:33,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7054 transitions. [2021-03-11 14:38:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:33,741 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:33,741 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:33,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-03-11 14:38:33,741 INFO L428 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:33,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:33,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1879117136, now seen corresponding path program 322 times [2021-03-11 14:38:33,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:33,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813723131] [2021-03-11 14:38:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:33,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:33,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:33,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:33,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:33,760 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:33,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:33,770 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:33,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:33,783 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:33,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:33,799 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:33,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:33,819 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:33,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:33,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:33,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:33,876 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:33,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:33,914 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:33,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:33,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:33,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813723131] [2021-03-11 14:38:33,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:33,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:33,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743593412] [2021-03-11 14:38:33,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:33,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:33,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:33,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:33,949 INFO L87 Difference]: Start difference. First operand 1576 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:34,087 INFO L93 Difference]: Finished difference Result 2943 states and 11700 transitions. [2021-03-11 14:38:34,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:34,088 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:34,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:34,093 INFO L225 Difference]: With dead ends: 2943 [2021-03-11 14:38:34,093 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:38:34,093 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 239.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:34,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:38:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1571. [2021-03-11 14:38:34,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484076433121019) internal successors, (7040), 1570 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7040 transitions. [2021-03-11 14:38:34,139 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7040 transitions. Word has length 28 [2021-03-11 14:38:34,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:34,139 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7040 transitions. [2021-03-11 14:38:34,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7040 transitions. [2021-03-11 14:38:34,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:34,141 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:34,141 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:34,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-03-11 14:38:34,141 INFO L428 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:34,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:34,141 INFO L82 PathProgramCache]: Analyzing trace with hash 632784064, now seen corresponding path program 323 times [2021-03-11 14:38:34,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:34,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763791437] [2021-03-11 14:38:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:34,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:34,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:34,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:34,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:34,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:34,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:34,164 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:34,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:34,176 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:34,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:34,191 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:34,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:34,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:34,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:34,236 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:34,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:34,268 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:34,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:34,307 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:34,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:34,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:34,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763791437] [2021-03-11 14:38:34,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:34,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:34,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514229024] [2021-03-11 14:38:34,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:34,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:34,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:34,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:34,342 INFO L87 Difference]: Start difference. First operand 1571 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:34,451 INFO L93 Difference]: Finished difference Result 2954 states and 11722 transitions. [2021-03-11 14:38:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:34,451 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:34,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:34,456 INFO L225 Difference]: With dead ends: 2954 [2021-03-11 14:38:34,457 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:38:34,457 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 212.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:38:34,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1579. [2021-03-11 14:38:34,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.4702154626109) internal successors, (7054), 1578 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7054 transitions. [2021-03-11 14:38:34,502 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:34,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:34,503 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7054 transitions. [2021-03-11 14:38:34,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7054 transitions. [2021-03-11 14:38:34,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:34,505 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:34,505 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:34,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-03-11 14:38:34,505 INFO L428 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:34,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:34,505 INFO L82 PathProgramCache]: Analyzing trace with hash 806031756, now seen corresponding path program 324 times [2021-03-11 14:38:34,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:34,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922336404] [2021-03-11 14:38:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:34,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:34,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:34,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:34,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:34,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:34,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:34,533 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:34,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:34,548 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:34,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:34,567 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:34,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:34,588 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:34,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:34,614 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:34,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:34,646 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:34,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:34,685 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:34,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:34,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922336404] [2021-03-11 14:38:34,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:34,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:34,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089662333] [2021-03-11 14:38:34,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:34,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:34,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:34,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:34,723 INFO L87 Difference]: Start difference. First operand 1579 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:34,863 INFO L93 Difference]: Finished difference Result 2951 states and 11709 transitions. [2021-03-11 14:38:34,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:34,863 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:34,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:34,868 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:38:34,869 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:38:34,869 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:34,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:38:34,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1565. [2021-03-11 14:38:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.491048593350383) internal successors, (7024), 1564 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7024 transitions. [2021-03-11 14:38:34,914 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7024 transitions. Word has length 28 [2021-03-11 14:38:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:34,914 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7024 transitions. [2021-03-11 14:38:34,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7024 transitions. [2021-03-11 14:38:34,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:34,916 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:34,916 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:34,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-03-11 14:38:34,916 INFO L428 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:34,917 INFO L82 PathProgramCache]: Analyzing trace with hash -817234292, now seen corresponding path program 325 times [2021-03-11 14:38:34,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:34,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577299577] [2021-03-11 14:38:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:34,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:34,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:34,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:34,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:34,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:34,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:34,939 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:34,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:34,951 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:34,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:34,967 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:34,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:34,988 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:34,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:35,013 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:35,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:35,045 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:35,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:35,083 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:35,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:35,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577299577] [2021-03-11 14:38:35,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:35,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:35,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780339648] [2021-03-11 14:38:35,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:35,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:35,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:35,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:35,118 INFO L87 Difference]: Start difference. First operand 1565 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:35,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:35,267 INFO L93 Difference]: Finished difference Result 2923 states and 11659 transitions. [2021-03-11 14:38:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:35,268 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:35,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:35,273 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:38:35,273 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:38:35,273 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:38:35,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1573. [2021-03-11 14:38:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.482188295165394) internal successors, (7046), 1572 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7046 transitions. [2021-03-11 14:38:35,319 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7046 transitions. Word has length 28 [2021-03-11 14:38:35,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:35,319 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7046 transitions. [2021-03-11 14:38:35,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7046 transitions. [2021-03-11 14:38:35,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:35,321 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:35,321 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:35,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-03-11 14:38:35,321 INFO L428 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:35,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:35,321 INFO L82 PathProgramCache]: Analyzing trace with hash -643986600, now seen corresponding path program 326 times [2021-03-11 14:38:35,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:35,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736585538] [2021-03-11 14:38:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:35,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:35,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:35,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:35,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:35,335 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:35,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:35,343 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:35,356 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:35,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:35,372 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:35,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:35,392 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:35,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:35,417 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:35,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:35,449 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:35,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:35,486 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:35,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:35,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736585538] [2021-03-11 14:38:35,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:35,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:35,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386516945] [2021-03-11 14:38:35,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:35,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:35,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:35,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:35,522 INFO L87 Difference]: Start difference. First operand 1573 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:35,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:35,663 INFO L93 Difference]: Finished difference Result 2922 states and 11653 transitions. [2021-03-11 14:38:35,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:35,664 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:35,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:35,669 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:38:35,669 INFO L226 Difference]: Without dead ends: 2904 [2021-03-11 14:38:35,669 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:35,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2021-03-11 14:38:35,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1569. [2021-03-11 14:38:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.486607142857143) internal successors, (7035), 1568 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:35,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7035 transitions. [2021-03-11 14:38:35,715 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7035 transitions. Word has length 28 [2021-03-11 14:38:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:35,715 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7035 transitions. [2021-03-11 14:38:35,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:35,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7035 transitions. [2021-03-11 14:38:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:35,717 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:35,717 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:35,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-03-11 14:38:35,717 INFO L428 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:35,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:35,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1890319672, now seen corresponding path program 327 times [2021-03-11 14:38:35,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:35,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897116870] [2021-03-11 14:38:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:35,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:35,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:35,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:35,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:35,732 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:35,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:35,740 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:35,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:35,752 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:35,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:35,768 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:35,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:35,788 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:35,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:35,813 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:35,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:35,844 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:35,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:35,883 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:35,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897116870] [2021-03-11 14:38:35,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:35,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:35,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788206790] [2021-03-11 14:38:35,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:35,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:35,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:35,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:35,918 INFO L87 Difference]: Start difference. First operand 1569 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:36,056 INFO L93 Difference]: Finished difference Result 2927 states and 11664 transitions. [2021-03-11 14:38:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:36,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:36,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:36,062 INFO L225 Difference]: With dead ends: 2927 [2021-03-11 14:38:36,062 INFO L226 Difference]: Without dead ends: 2912 [2021-03-11 14:38:36,062 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 238.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:36,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2021-03-11 14:38:36,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1574. [2021-03-11 14:38:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.478067387158296) internal successors, (7044), 1573 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7044 transitions. [2021-03-11 14:38:36,108 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7044 transitions. Word has length 28 [2021-03-11 14:38:36,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:36,108 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7044 transitions. [2021-03-11 14:38:36,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7044 transitions. [2021-03-11 14:38:36,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:36,110 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:36,110 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:36,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-03-11 14:38:36,110 INFO L428 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:36,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:36,111 INFO L82 PathProgramCache]: Analyzing trace with hash -227666984, now seen corresponding path program 328 times [2021-03-11 14:38:36,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:36,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210159068] [2021-03-11 14:38:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:36,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:36,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:36,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:36,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:36,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:36,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:36,133 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:36,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:36,145 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:36,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:36,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:36,182 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:36,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:36,207 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:36,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:36,238 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:36,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:36,276 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:36,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:36,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210159068] [2021-03-11 14:38:36,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:36,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:36,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605222826] [2021-03-11 14:38:36,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:36,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:36,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:36,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:36,312 INFO L87 Difference]: Start difference. First operand 1574 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:36,449 INFO L93 Difference]: Finished difference Result 2929 states and 11663 transitions. [2021-03-11 14:38:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:36,450 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:36,455 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:38:36,455 INFO L226 Difference]: Without dead ends: 2907 [2021-03-11 14:38:36,455 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 237.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-03-11 14:38:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1569. [2021-03-11 14:38:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.48405612244898) internal successors, (7031), 1568 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7031 transitions. [2021-03-11 14:38:36,500 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7031 transitions. Word has length 28 [2021-03-11 14:38:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:36,500 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7031 transitions. [2021-03-11 14:38:36,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7031 transitions. [2021-03-11 14:38:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:36,503 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:36,503 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:36,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-03-11 14:38:36,503 INFO L428 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:36,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:36,503 INFO L82 PathProgramCache]: Analyzing trace with hash -641360824, now seen corresponding path program 329 times [2021-03-11 14:38:36,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:36,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561530807] [2021-03-11 14:38:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:36,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:36,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:36,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:36,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:36,520 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:36,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:36,528 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:36,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:36,540 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:36,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:36,556 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:36,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:36,577 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:36,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:36,602 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:36,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:36,652 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:36,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:36,690 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:36,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:36,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561530807] [2021-03-11 14:38:36,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:36,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:36,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988116639] [2021-03-11 14:38:36,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:36,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:36,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:36,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:36,726 INFO L87 Difference]: Start difference. First operand 1569 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:36,861 INFO L93 Difference]: Finished difference Result 2924 states and 11653 transitions. [2021-03-11 14:38:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:36,862 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:36,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:36,867 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:38:36,867 INFO L226 Difference]: Without dead ends: 2910 [2021-03-11 14:38:36,868 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:36,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2021-03-11 14:38:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 1573. [2021-03-11 14:38:36,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.477099236641221) internal successors, (7038), 1572 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7038 transitions. [2021-03-11 14:38:36,913 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7038 transitions. Word has length 28 [2021-03-11 14:38:36,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:36,913 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7038 transitions. [2021-03-11 14:38:36,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7038 transitions. [2021-03-11 14:38:36,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:36,915 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:36,915 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:36,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-03-11 14:38:36,915 INFO L428 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:36,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:36,916 INFO L82 PathProgramCache]: Analyzing trace with hash 848044172, now seen corresponding path program 330 times [2021-03-11 14:38:36,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:36,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062867850] [2021-03-11 14:38:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:36,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:36,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:36,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:36,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:36,930 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:36,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:36,938 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:36,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:36,951 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:36,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:36,967 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:36,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:36,987 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:36,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:37,012 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:37,062 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:37,101 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:37,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:37,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062867850] [2021-03-11 14:38:37,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:37,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:37,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087747658] [2021-03-11 14:38:37,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:37,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:37,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:37,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:37,136 INFO L87 Difference]: Start difference. First operand 1573 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:37,279 INFO L93 Difference]: Finished difference Result 2927 states and 11655 transitions. [2021-03-11 14:38:37,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:37,285 INFO L225 Difference]: With dead ends: 2927 [2021-03-11 14:38:37,285 INFO L226 Difference]: Without dead ends: 2902 [2021-03-11 14:38:37,285 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:37,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2021-03-11 14:38:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 1565. [2021-03-11 14:38:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.4884910485933505) internal successors, (7020), 1564 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7020 transitions. [2021-03-11 14:38:37,332 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7020 transitions. Word has length 28 [2021-03-11 14:38:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:37,333 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7020 transitions. [2021-03-11 14:38:37,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:37,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7020 transitions. [2021-03-11 14:38:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:37,335 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:37,335 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:37,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-03-11 14:38:37,335 INFO L428 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:37,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:37,335 INFO L82 PathProgramCache]: Analyzing trace with hash 693176912, now seen corresponding path program 331 times [2021-03-11 14:38:37,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:37,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710685312] [2021-03-11 14:38:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:37,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:37,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:37,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:37,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:37,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:37,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:37,358 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:37,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:37,370 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:37,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:37,387 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:37,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:37,407 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:37,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:37,449 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:37,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:37,497 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:37,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:37,536 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:37,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:37,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:37,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710685312] [2021-03-11 14:38:37,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:37,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:37,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784787165] [2021-03-11 14:38:37,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:37,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:37,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:37,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:37,572 INFO L87 Difference]: Start difference. First operand 1565 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:37,703 INFO L93 Difference]: Finished difference Result 2944 states and 11697 transitions. [2021-03-11 14:38:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:37,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:37,709 INFO L225 Difference]: With dead ends: 2944 [2021-03-11 14:38:37,709 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:38:37,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:37,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:38:37,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1575. [2021-03-11 14:38:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.476493011435832) internal successors, (7046), 1574 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7046 transitions. [2021-03-11 14:38:37,755 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7046 transitions. Word has length 28 [2021-03-11 14:38:37,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:37,755 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7046 transitions. [2021-03-11 14:38:37,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:37,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7046 transitions. [2021-03-11 14:38:37,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:37,757 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:37,757 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:37,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-03-11 14:38:37,757 INFO L428 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:37,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:37,757 INFO L82 PathProgramCache]: Analyzing trace with hash -622980392, now seen corresponding path program 332 times [2021-03-11 14:38:37,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:37,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969536214] [2021-03-11 14:38:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:37,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:37,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:37,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:37,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:37,771 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:37,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:37,780 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:37,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:37,792 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:37,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:37,809 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:37,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:37,829 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:37,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:37,872 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:37,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:37,920 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:37,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:37,959 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:37,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:37,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:37,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969536214] [2021-03-11 14:38:37,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:37,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:37,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288047273] [2021-03-11 14:38:37,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:37,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:37,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:37,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:37,995 INFO L87 Difference]: Start difference. First operand 1575 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:38,134 INFO L93 Difference]: Finished difference Result 2938 states and 11681 transitions. [2021-03-11 14:38:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:38,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:38,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:38,140 INFO L225 Difference]: With dead ends: 2938 [2021-03-11 14:38:38,140 INFO L226 Difference]: Without dead ends: 2919 [2021-03-11 14:38:38,140 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2021-03-11 14:38:38,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1570. [2021-03-11 14:38:38,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.482472912683238) internal successors, (7033), 1569 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7033 transitions. [2021-03-11 14:38:38,186 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7033 transitions. Word has length 28 [2021-03-11 14:38:38,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:38,186 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7033 transitions. [2021-03-11 14:38:38,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7033 transitions. [2021-03-11 14:38:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:38,188 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:38,188 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:38,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-03-11 14:38:38,188 INFO L428 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:38,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:38,189 INFO L82 PathProgramCache]: Analyzing trace with hash -379908468, now seen corresponding path program 333 times [2021-03-11 14:38:38,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:38,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299548053] [2021-03-11 14:38:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:38,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:38,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:38,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:38,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:38,203 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:38,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:38,211 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:38,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:38,224 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:38,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:38,240 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:38,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:38,261 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:38,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:38,303 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:38,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:38,335 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:38,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:38,374 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:38,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:38,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299548053] [2021-03-11 14:38:38,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:38,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:38,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331189360] [2021-03-11 14:38:38,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:38,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:38,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:38,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:38,409 INFO L87 Difference]: Start difference. First operand 1570 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:38,522 INFO L93 Difference]: Finished difference Result 2950 states and 11707 transitions. [2021-03-11 14:38:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:38,528 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:38:38,528 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:38:38,528 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 231.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:38:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1578. [2021-03-11 14:38:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.46861128725428) internal successors, (7047), 1577 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7047 transitions. [2021-03-11 14:38:38,574 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7047 transitions. Word has length 28 [2021-03-11 14:38:38,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:38,574 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7047 transitions. [2021-03-11 14:38:38,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7047 transitions. [2021-03-11 14:38:38,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:38,576 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:38,576 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:38,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-03-11 14:38:38,577 INFO L428 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:38,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:38,577 INFO L82 PathProgramCache]: Analyzing trace with hash -206660776, now seen corresponding path program 334 times [2021-03-11 14:38:38,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:38,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291423164] [2021-03-11 14:38:38,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:38,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:38,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:38,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:38,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:38,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:38,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:38,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:38,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:38,615 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:38,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:38,631 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:38,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:38,652 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:38,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:38,695 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:38,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:38,728 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:38,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:38,766 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:38,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:38,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291423164] [2021-03-11 14:38:38,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:38,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:38,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666013223] [2021-03-11 14:38:38,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:38,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:38,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:38,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:38,803 INFO L87 Difference]: Start difference. First operand 1578 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:38,943 INFO L93 Difference]: Finished difference Result 2947 states and 11694 transitions. [2021-03-11 14:38:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:38,944 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:38,949 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:38:38,949 INFO L226 Difference]: Without dead ends: 2922 [2021-03-11 14:38:38,949 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 261.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:38,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2021-03-11 14:38:38,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1570. [2021-03-11 14:38:38,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.479286169534736) internal successors, (7028), 1569 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7028 transitions. [2021-03-11 14:38:38,995 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7028 transitions. Word has length 28 [2021-03-11 14:38:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:38,995 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7028 transitions. [2021-03-11 14:38:38,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7028 transitions. [2021-03-11 14:38:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:38,997 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:38,997 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:38,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-03-11 14:38:38,997 INFO L428 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:38,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:38,997 INFO L82 PathProgramCache]: Analyzing trace with hash 452730764, now seen corresponding path program 335 times [2021-03-11 14:38:38,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:38,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205786138] [2021-03-11 14:38:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:39,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:39,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:39,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:39,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:39,012 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:39,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:39,020 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:39,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:39,033 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:39,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:39,049 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:39,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:39,070 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:39,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:39,113 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:39,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:39,164 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:39,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:39,204 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:39,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:39,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205786138] [2021-03-11 14:38:39,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:39,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:39,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607302658] [2021-03-11 14:38:39,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:39,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:39,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:39,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:39,241 INFO L87 Difference]: Start difference. First operand 1570 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:39,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:39,427 INFO L93 Difference]: Finished difference Result 2934 states and 11669 transitions. [2021-03-11 14:38:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:39,427 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:39,433 INFO L225 Difference]: With dead ends: 2934 [2021-03-11 14:38:39,433 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:38:39,433 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 281.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:38:39,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1574. [2021-03-11 14:38:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4723458359822) internal successors, (7035), 1573 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7035 transitions. [2021-03-11 14:38:39,479 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7035 transitions. Word has length 28 [2021-03-11 14:38:39,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:39,479 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7035 transitions. [2021-03-11 14:38:39,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:39,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7035 transitions. [2021-03-11 14:38:39,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:39,481 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:39,481 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:39,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-03-11 14:38:39,481 INFO L428 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1942135760, now seen corresponding path program 336 times [2021-03-11 14:38:39,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:39,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996909900] [2021-03-11 14:38:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:39,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:39,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:39,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:39,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:39,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:39,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:39,504 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:39,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:39,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:39,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:39,534 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:39,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:39,554 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:39,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:39,597 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:39,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:39,648 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:39,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:39,690 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:39,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:39,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996909900] [2021-03-11 14:38:39,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:39,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:39,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254844480] [2021-03-11 14:38:39,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:39,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:39,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:39,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:39,731 INFO L87 Difference]: Start difference. First operand 1574 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:39,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:39,914 INFO L93 Difference]: Finished difference Result 2937 states and 11671 transitions. [2021-03-11 14:38:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:39,915 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:39,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:39,921 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:38:39,921 INFO L226 Difference]: Without dead ends: 2906 [2021-03-11 14:38:39,921 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 287.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:39,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2021-03-11 14:38:39,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1560. [2021-03-11 14:38:39,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 4.493906350224503) internal successors, (7006), 1559 states have internal predecessors, (7006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 7006 transitions. [2021-03-11 14:38:39,969 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 7006 transitions. Word has length 28 [2021-03-11 14:38:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:39,969 INFO L480 AbstractCegarLoop]: Abstraction has 1560 states and 7006 transitions. [2021-03-11 14:38:39,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 7006 transitions. [2021-03-11 14:38:39,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:39,972 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:39,972 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:39,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-03-11 14:38:39,972 INFO L428 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:39,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:39,972 INFO L82 PathProgramCache]: Analyzing trace with hash 727901384, now seen corresponding path program 337 times [2021-03-11 14:38:39,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:39,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922693198] [2021-03-11 14:38:39,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:39,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:39,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:39,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:39,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:39,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:39,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:39,996 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:39,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:40,009 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:40,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:40,027 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:40,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:40,049 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:40,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:40,094 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:40,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:40,150 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:40,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:40,191 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:40,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:40,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922693198] [2021-03-11 14:38:40,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:40,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:40,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887025169] [2021-03-11 14:38:40,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:40,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:40,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:40,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:40,228 INFO L87 Difference]: Start difference. First operand 1560 states and 7006 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:40,385 INFO L93 Difference]: Finished difference Result 2946 states and 11716 transitions. [2021-03-11 14:38:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:40,385 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:40,391 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:38:40,391 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:38:40,391 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 294.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:40,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:38:40,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1577. [2021-03-11 14:38:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.479695431472082) internal successors, (7060), 1576 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7060 transitions. [2021-03-11 14:38:40,440 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7060 transitions. Word has length 28 [2021-03-11 14:38:40,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:40,440 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7060 transitions. [2021-03-11 14:38:40,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7060 transitions. [2021-03-11 14:38:40,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:40,443 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:40,443 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:40,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-03-11 14:38:40,443 INFO L428 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:40,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:40,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1472603882, now seen corresponding path program 338 times [2021-03-11 14:38:40,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:40,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725012883] [2021-03-11 14:38:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:40,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:40,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:40,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:40,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:40,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:40,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:40,467 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:40,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:40,480 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:40,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:40,498 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:40,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:40,520 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:40,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:40,564 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:40,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:40,620 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:40,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:40,661 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:40,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:40,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725012883] [2021-03-11 14:38:40,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:40,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:40,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775356926] [2021-03-11 14:38:40,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:40,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:40,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:40,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:40,699 INFO L87 Difference]: Start difference. First operand 1577 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:40,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:40,825 INFO L93 Difference]: Finished difference Result 2950 states and 11717 transitions. [2021-03-11 14:38:40,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:40,826 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:40,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:40,831 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:38:40,831 INFO L226 Difference]: Without dead ends: 2923 [2021-03-11 14:38:40,832 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:40,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-03-11 14:38:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1570. [2021-03-11 14:38:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.488209050350542) internal successors, (7042), 1569 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7042 transitions. [2021-03-11 14:38:40,881 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7042 transitions. Word has length 28 [2021-03-11 14:38:40,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:40,881 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7042 transitions. [2021-03-11 14:38:40,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7042 transitions. [2021-03-11 14:38:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:40,883 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:40,883 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:40,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-03-11 14:38:40,883 INFO L428 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:40,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1418269376, now seen corresponding path program 339 times [2021-03-11 14:38:40,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:40,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671351889] [2021-03-11 14:38:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:40,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:40,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:40,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:40,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:40,898 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:40,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:40,907 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:40,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:40,921 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:40,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:40,938 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:40,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:40,960 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:40,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:41,005 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:41,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:41,038 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:41,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:41,079 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:41,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:41,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:41,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671351889] [2021-03-11 14:38:41,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:41,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:41,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71318737] [2021-03-11 14:38:41,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:41,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:41,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:41,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:41,117 INFO L87 Difference]: Start difference. First operand 1570 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:41,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:41,268 INFO L93 Difference]: Finished difference Result 2937 states and 11692 transitions. [2021-03-11 14:38:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:41,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:41,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:41,275 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:38:41,275 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:38:41,275 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:41,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:38:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1574. [2021-03-11 14:38:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.481246026700572) internal successors, (7049), 1573 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7049 transitions. [2021-03-11 14:38:41,323 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7049 transitions. Word has length 28 [2021-03-11 14:38:41,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:41,323 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7049 transitions. [2021-03-11 14:38:41,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:41,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7049 transitions. [2021-03-11 14:38:41,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:41,326 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:41,326 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:41,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-03-11 14:38:41,326 INFO L428 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:41,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:41,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1989724182, now seen corresponding path program 340 times [2021-03-11 14:38:41,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:41,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778888600] [2021-03-11 14:38:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:41,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:41,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:41,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:41,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:41,340 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:41,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:41,349 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:41,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:41,363 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:41,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:41,380 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:41,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:41,403 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:41,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:41,446 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:41,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:41,479 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:41,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:41,518 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:41,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:41,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:41,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778888600] [2021-03-11 14:38:41,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:41,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:41,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818137698] [2021-03-11 14:38:41,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:41,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:41,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:41,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:41,556 INFO L87 Difference]: Start difference. First operand 1574 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:41,725 INFO L93 Difference]: Finished difference Result 2935 states and 11684 transitions. [2021-03-11 14:38:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:41,732 INFO L225 Difference]: With dead ends: 2935 [2021-03-11 14:38:41,732 INFO L226 Difference]: Without dead ends: 2917 [2021-03-11 14:38:41,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:41,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2021-03-11 14:38:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1570. [2021-03-11 14:38:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.48565965583174) internal successors, (7038), 1569 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7038 transitions. [2021-03-11 14:38:41,780 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7038 transitions. Word has length 28 [2021-03-11 14:38:41,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:41,780 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7038 transitions. [2021-03-11 14:38:41,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:41,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7038 transitions. [2021-03-11 14:38:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:41,782 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:41,782 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:41,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-03-11 14:38:41,782 INFO L428 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:41,783 INFO L82 PathProgramCache]: Analyzing trace with hash 937374080, now seen corresponding path program 341 times [2021-03-11 14:38:41,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:41,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808170145] [2021-03-11 14:38:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:41,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:41,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:41,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:41,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:41,797 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:41,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:41,806 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:41,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:41,819 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:41,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:41,837 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:41,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:41,858 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:41,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:41,903 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:41,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:41,953 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:41,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:41,994 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:41,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:42,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808170145] [2021-03-11 14:38:42,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:42,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:42,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781036290] [2021-03-11 14:38:42,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:42,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:42,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:42,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:42,032 INFO L87 Difference]: Start difference. First operand 1570 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:42,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:42,150 INFO L93 Difference]: Finished difference Result 2946 states and 11704 transitions. [2021-03-11 14:38:42,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:42,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:42,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:42,156 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:38:42,156 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:38:42,157 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:42,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:38:42,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1575. [2021-03-11 14:38:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.476493011435832) internal successors, (7046), 1574 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7046 transitions. [2021-03-11 14:38:42,205 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7046 transitions. Word has length 28 [2021-03-11 14:38:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:42,205 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7046 transitions. [2021-03-11 14:38:42,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7046 transitions. [2021-03-11 14:38:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:42,208 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:42,208 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:42,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-03-11 14:38:42,208 INFO L428 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:42,208 INFO L82 PathProgramCache]: Analyzing trace with hash -378783224, now seen corresponding path program 342 times [2021-03-11 14:38:42,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:42,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117022817] [2021-03-11 14:38:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:42,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:42,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:42,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:42,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:42,222 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:42,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:42,231 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:42,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:42,245 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:42,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:42,262 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:42,284 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:42,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:42,328 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:42,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:42,378 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:42,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:42,418 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:42,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:42,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117022817] [2021-03-11 14:38:42,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:42,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:42,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150256615] [2021-03-11 14:38:42,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:42,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:42,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:42,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:42,456 INFO L87 Difference]: Start difference. First operand 1575 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:42,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:42,619 INFO L93 Difference]: Finished difference Result 2940 states and 11688 transitions. [2021-03-11 14:38:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:42,620 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:42,625 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:38:42,625 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:38:42,625 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 284.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:42,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:38:42,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1565. [2021-03-11 14:38:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.491048593350383) internal successors, (7024), 1564 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7024 transitions. [2021-03-11 14:38:42,671 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7024 transitions. Word has length 28 [2021-03-11 14:38:42,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:42,671 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7024 transitions. [2021-03-11 14:38:42,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:42,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7024 transitions. [2021-03-11 14:38:42,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:42,673 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:42,673 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:42,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-03-11 14:38:42,673 INFO L428 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:42,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:42,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1821992972, now seen corresponding path program 343 times [2021-03-11 14:38:42,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:42,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373181145] [2021-03-11 14:38:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:42,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:42,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:42,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:42,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:42,687 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:42,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:42,696 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:42,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:42,709 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:42,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:42,725 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:42,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:42,746 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:42,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:42,773 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:42,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:42,828 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:42,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:42,867 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:42,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:42,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:42,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373181145] [2021-03-11 14:38:42,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:42,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:42,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125486363] [2021-03-11 14:38:42,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:42,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:42,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:42,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:42,904 INFO L87 Difference]: Start difference. First operand 1565 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:43,050 INFO L93 Difference]: Finished difference Result 2956 states and 11740 transitions. [2021-03-11 14:38:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:43,050 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:43,055 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:38:43,056 INFO L226 Difference]: Without dead ends: 2940 [2021-03-11 14:38:43,056 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-03-11 14:38:43,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1579. [2021-03-11 14:38:43,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.475918884664132) internal successors, (7063), 1578 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7063 transitions. [2021-03-11 14:38:43,101 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7063 transitions. Word has length 28 [2021-03-11 14:38:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:43,101 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7063 transitions. [2021-03-11 14:38:43,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7063 transitions. [2021-03-11 14:38:43,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:43,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:43,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:43,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-03-11 14:38:43,104 INFO L428 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:43,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:43,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1728271826, now seen corresponding path program 344 times [2021-03-11 14:38:43,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:43,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108124115] [2021-03-11 14:38:43,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:43,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:43,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:43,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:43,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:43,119 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:43,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:43,127 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:43,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:43,140 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:43,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:43,157 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:43,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:43,178 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:43,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:43,206 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:43,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:43,260 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:43,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:43,300 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:43,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:43,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108124115] [2021-03-11 14:38:43,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:43,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:43,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219132614] [2021-03-11 14:38:43,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:43,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:43,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:43,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:43,337 INFO L87 Difference]: Start difference. First operand 1579 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:43,459 INFO L93 Difference]: Finished difference Result 2960 states and 11741 transitions. [2021-03-11 14:38:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:43,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:43,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:43,465 INFO L225 Difference]: With dead ends: 2960 [2021-03-11 14:38:43,465 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:38:43,465 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 244.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:43,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:38:43,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1572. [2021-03-11 14:38:43,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.4831317632081475) internal successors, (7043), 1571 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7043 transitions. [2021-03-11 14:38:43,510 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7043 transitions. Word has length 28 [2021-03-11 14:38:43,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:43,511 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7043 transitions. [2021-03-11 14:38:43,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7043 transitions. [2021-03-11 14:38:43,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:43,513 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:43,513 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:43,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-03-11 14:38:43,513 INFO L428 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:43,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:43,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1397263168, now seen corresponding path program 345 times [2021-03-11 14:38:43,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:43,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359641509] [2021-03-11 14:38:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:43,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:43,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:43,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:43,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:43,527 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:43,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:43,536 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:43,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:43,549 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:43,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:43,566 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:43,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:43,587 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:43,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:43,614 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:43,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:43,647 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:43,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:43,686 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:43,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:43,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359641509] [2021-03-11 14:38:43,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:43,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:43,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358418453] [2021-03-11 14:38:43,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:43,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:43,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:43,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:43,723 INFO L87 Difference]: Start difference. First operand 1572 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:43,865 INFO L93 Difference]: Finished difference Result 2952 states and 11726 transitions. [2021-03-11 14:38:43,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:43,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:43,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:43,871 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:38:43,871 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:38:43,871 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:38:43,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1578. [2021-03-11 14:38:43,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.473050095117311) internal successors, (7054), 1577 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7054 transitions. [2021-03-11 14:38:43,917 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:43,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:43,917 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7054 transitions. [2021-03-11 14:38:43,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7054 transitions. [2021-03-11 14:38:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:43,919 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:43,919 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:43,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-03-11 14:38:43,919 INFO L428 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:43,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:43,920 INFO L82 PathProgramCache]: Analyzing trace with hash -479312978, now seen corresponding path program 346 times [2021-03-11 14:38:43,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:43,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654423029] [2021-03-11 14:38:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:43,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:43,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:43,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:43,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:43,934 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:43,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:43,943 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:43,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:43,956 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:43,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:43,973 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:43,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:43,995 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:43,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:44,023 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:44,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:44,056 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:44,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:44,096 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:44,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:44,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654423029] [2021-03-11 14:38:44,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:44,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:44,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800511448] [2021-03-11 14:38:44,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:44,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:44,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:44,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:44,133 INFO L87 Difference]: Start difference. First operand 1578 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:44,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:44,288 INFO L93 Difference]: Finished difference Result 2953 states and 11722 transitions. [2021-03-11 14:38:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:44,289 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:44,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:44,294 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:38:44,294 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:38:44,294 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:44,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:38:44,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1572. [2021-03-11 14:38:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.479312539783577) internal successors, (7037), 1571 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:44,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7037 transitions. [2021-03-11 14:38:44,341 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7037 transitions. Word has length 28 [2021-03-11 14:38:44,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:44,341 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7037 transitions. [2021-03-11 14:38:44,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:44,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7037 transitions. [2021-03-11 14:38:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:44,343 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:44,343 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:44,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-03-11 14:38:44,343 INFO L428 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:44,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:44,343 INFO L82 PathProgramCache]: Analyzing trace with hash 958380288, now seen corresponding path program 347 times [2021-03-11 14:38:44,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:44,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692470886] [2021-03-11 14:38:44,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:44,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:44,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:44,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:44,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:44,358 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:44,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:44,367 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:44,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:44,380 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:44,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:44,398 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:44,420 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:44,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:44,447 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:44,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:44,481 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:44,521 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:44,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:44,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692470886] [2021-03-11 14:38:44,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:44,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:44,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139759819] [2021-03-11 14:38:44,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:44,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:44,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:44,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:44,558 INFO L87 Difference]: Start difference. First operand 1572 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:44,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:44,670 INFO L93 Difference]: Finished difference Result 2962 states and 11739 transitions. [2021-03-11 14:38:44,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:44,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:44,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:44,676 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:38:44,676 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:38:44,677 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:38:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1580. [2021-03-11 14:38:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.465484483850538) internal successors, (7051), 1579 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7051 transitions. [2021-03-11 14:38:44,722 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7051 transitions. Word has length 28 [2021-03-11 14:38:44,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:44,722 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7051 transitions. [2021-03-11 14:38:44,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:44,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7051 transitions. [2021-03-11 14:38:44,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:44,725 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:44,725 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:44,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-03-11 14:38:44,725 INFO L428 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:44,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1131627980, now seen corresponding path program 348 times [2021-03-11 14:38:44,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:44,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111841496] [2021-03-11 14:38:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:44,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:44,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:44,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:44,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:44,739 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:44,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:44,748 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:44,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:44,760 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:44,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:44,777 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:44,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:44,798 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:44,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:44,826 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:44,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:44,859 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:44,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:44,898 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:44,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:44,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:44,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111841496] [2021-03-11 14:38:44,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:44,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:44,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295907060] [2021-03-11 14:38:44,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:44,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:44,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:44,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:44,936 INFO L87 Difference]: Start difference. First operand 1580 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:45,071 INFO L93 Difference]: Finished difference Result 2959 states and 11726 transitions. [2021-03-11 14:38:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:45,071 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:45,077 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:38:45,077 INFO L226 Difference]: Without dead ends: 2927 [2021-03-11 14:38:45,077 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:45,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2021-03-11 14:38:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 1565. [2021-03-11 14:38:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.4878516624040925) internal successors, (7019), 1564 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7019 transitions. [2021-03-11 14:38:45,122 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7019 transitions. Word has length 28 [2021-03-11 14:38:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:45,122 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7019 transitions. [2021-03-11 14:38:45,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7019 transitions. [2021-03-11 14:38:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:45,124 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:45,124 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:45,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-03-11 14:38:45,124 INFO L428 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:45,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:45,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1864005388, now seen corresponding path program 349 times [2021-03-11 14:38:45,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:45,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62263153] [2021-03-11 14:38:45,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:45,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:45,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:45,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:45,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:45,139 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:45,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:45,148 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:45,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:45,161 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:45,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:45,177 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:45,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:45,199 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:45,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:45,225 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:45,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:45,257 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:45,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:45,297 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:45,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62263153] [2021-03-11 14:38:45,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:45,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:45,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671601877] [2021-03-11 14:38:45,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:45,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:45,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:45,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:45,335 INFO L87 Difference]: Start difference. First operand 1565 states and 7019 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:45,500 INFO L93 Difference]: Finished difference Result 2931 states and 11675 transitions. [2021-03-11 14:38:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:45,501 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:45,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:45,507 INFO L225 Difference]: With dead ends: 2931 [2021-03-11 14:38:45,507 INFO L226 Difference]: Without dead ends: 2915 [2021-03-11 14:38:45,507 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 250.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:45,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2021-03-11 14:38:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1573. [2021-03-11 14:38:45,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.479007633587786) internal successors, (7041), 1572 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7041 transitions. [2021-03-11 14:38:45,553 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7041 transitions. Word has length 28 [2021-03-11 14:38:45,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:45,553 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7041 transitions. [2021-03-11 14:38:45,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7041 transitions. [2021-03-11 14:38:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:45,555 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:45,555 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:45,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-03-11 14:38:45,555 INFO L428 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:45,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:45,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1292550582, now seen corresponding path program 350 times [2021-03-11 14:38:45,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:45,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985330648] [2021-03-11 14:38:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:45,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:45,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:45,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:45,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:45,570 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:45,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:45,578 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:45,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:45,591 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:45,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:45,608 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:45,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:45,630 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:45,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:45,656 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:45,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:45,688 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:45,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:45,728 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:45,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:45,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985330648] [2021-03-11 14:38:45,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:45,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:45,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093208742] [2021-03-11 14:38:45,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:45,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:45,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:45,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:45,765 INFO L87 Difference]: Start difference. First operand 1573 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:45,910 INFO L93 Difference]: Finished difference Result 2929 states and 11667 transitions. [2021-03-11 14:38:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:45,911 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:45,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:45,916 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:38:45,916 INFO L226 Difference]: Without dead ends: 2911 [2021-03-11 14:38:45,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-11 14:38:45,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 1569. [2021-03-11 14:38:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.483418367346939) internal successors, (7030), 1568 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7030 transitions. [2021-03-11 14:38:45,962 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7030 transitions. Word has length 28 [2021-03-11 14:38:45,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:45,962 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7030 transitions. [2021-03-11 14:38:45,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:45,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7030 transitions. [2021-03-11 14:38:45,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:45,965 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:45,965 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:45,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-03-11 14:38:45,965 INFO L428 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:45,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:45,965 INFO L82 PathProgramCache]: Analyzing trace with hash 790920008, now seen corresponding path program 351 times [2021-03-11 14:38:45,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:45,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266602706] [2021-03-11 14:38:45,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:45,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:45,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:45,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:45,979 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:45,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:45,988 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:45,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:46,001 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:46,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:46,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:46,040 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:46,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:46,066 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:46,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:46,100 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:46,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:46,140 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:46,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:46,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:46,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266602706] [2021-03-11 14:38:46,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:46,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:46,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869394669] [2021-03-11 14:38:46,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:46,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:46,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:46,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:46,178 INFO L87 Difference]: Start difference. First operand 1569 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:46,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:46,314 INFO L93 Difference]: Finished difference Result 2936 states and 11683 transitions. [2021-03-11 14:38:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:46,315 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:46,320 INFO L225 Difference]: With dead ends: 2936 [2021-03-11 14:38:46,320 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:38:46,320 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:38:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1575. [2021-03-11 14:38:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.473316391359593) internal successors, (7041), 1574 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7041 transitions. [2021-03-11 14:38:46,365 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7041 transitions. Word has length 28 [2021-03-11 14:38:46,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:46,366 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7041 transitions. [2021-03-11 14:38:46,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:46,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7041 transitions. [2021-03-11 14:38:46,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:46,368 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:46,368 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:46,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-03-11 14:38:46,368 INFO L428 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:46,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:46,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1708870198, now seen corresponding path program 352 times [2021-03-11 14:38:46,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:46,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237240435] [2021-03-11 14:38:46,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:46,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:46,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:46,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:46,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:46,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:46,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:46,391 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:46,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:46,404 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:46,422 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:46,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:46,443 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:46,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:46,470 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:46,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:46,503 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:46,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:46,543 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:46,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:46,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237240435] [2021-03-11 14:38:46,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:46,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:46,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305770471] [2021-03-11 14:38:46,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:46,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:46,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:46,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:46,581 INFO L87 Difference]: Start difference. First operand 1575 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:46,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:46,728 INFO L93 Difference]: Finished difference Result 2937 states and 11679 transitions. [2021-03-11 14:38:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:46,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:46,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:46,734 INFO L225 Difference]: With dead ends: 2937 [2021-03-11 14:38:46,734 INFO L226 Difference]: Without dead ends: 2914 [2021-03-11 14:38:46,734 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 252.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:46,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-03-11 14:38:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1569. [2021-03-11 14:38:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.480867346938775) internal successors, (7026), 1568 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7026 transitions. [2021-03-11 14:38:46,780 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7026 transitions. Word has length 28 [2021-03-11 14:38:46,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:46,780 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7026 transitions. [2021-03-11 14:38:46,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7026 transitions. [2021-03-11 14:38:46,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:46,782 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:46,782 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:46,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-03-11 14:38:46,783 INFO L428 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:46,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:46,783 INFO L82 PathProgramCache]: Analyzing trace with hash -315764600, now seen corresponding path program 353 times [2021-03-11 14:38:46,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:46,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128980728] [2021-03-11 14:38:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:46,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:46,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:46,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:46,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:46,797 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:46,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:46,806 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:46,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:46,819 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:46,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:46,836 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:46,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:46,858 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:46,884 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:46,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:46,939 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:46,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:46,979 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:46,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:47,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128980728] [2021-03-11 14:38:47,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:47,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:47,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057362564] [2021-03-11 14:38:47,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:47,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:47,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:47,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:47,017 INFO L87 Difference]: Start difference. First operand 1569 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:47,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:47,171 INFO L93 Difference]: Finished difference Result 2930 states and 11665 transitions. [2021-03-11 14:38:47,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:47,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:47,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:47,177 INFO L225 Difference]: With dead ends: 2930 [2021-03-11 14:38:47,177 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:38:47,177 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 274.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:47,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:38:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1573. [2021-03-11 14:38:47,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.473918575063613) internal successors, (7033), 1572 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:47,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7033 transitions. [2021-03-11 14:38:47,224 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7033 transitions. Word has length 28 [2021-03-11 14:38:47,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:47,224 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7033 transitions. [2021-03-11 14:38:47,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7033 transitions. [2021-03-11 14:38:47,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:47,226 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:47,226 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:47,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-03-11 14:38:47,226 INFO L428 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:47,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:47,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1173640396, now seen corresponding path program 354 times [2021-03-11 14:38:47,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:47,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224634539] [2021-03-11 14:38:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:47,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:47,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:47,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:47,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:47,241 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:47,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:47,249 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:47,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:47,263 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:47,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:47,280 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:47,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:47,302 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:47,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:47,329 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:47,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:47,384 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:47,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:47,425 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:47,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224634539] [2021-03-11 14:38:47,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:47,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:47,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505755558] [2021-03-11 14:38:47,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:47,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:47,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:47,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:47,464 INFO L87 Difference]: Start difference. First operand 1573 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:47,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:47,624 INFO L93 Difference]: Finished difference Result 2933 states and 11667 transitions. [2021-03-11 14:38:47,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:47,624 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:47,630 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:38:47,630 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:38:47,630 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 285.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:38:47,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1565. [2021-03-11 14:38:47,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.485294117647059) internal successors, (7015), 1564 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7015 transitions. [2021-03-11 14:38:47,675 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7015 transitions. Word has length 28 [2021-03-11 14:38:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:47,676 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7015 transitions. [2021-03-11 14:38:47,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7015 transitions. [2021-03-11 14:38:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:47,678 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:47,678 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:47,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-03-11 14:38:47,678 INFO L428 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:47,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1675756306, now seen corresponding path program 355 times [2021-03-11 14:38:47,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:47,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043129099] [2021-03-11 14:38:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:47,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:47,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:47,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:47,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:47,700 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:47,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:47,709 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:47,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:47,722 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:47,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:47,739 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:47,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:47,761 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:47,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:47,807 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:47,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:47,857 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:47,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:47,898 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:47,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:47,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:47,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043129099] [2021-03-11 14:38:47,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:47,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:47,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352968610] [2021-03-11 14:38:47,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:47,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:47,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:47,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:47,936 INFO L87 Difference]: Start difference. First operand 1565 states and 7015 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:48,045 INFO L93 Difference]: Finished difference Result 2948 states and 11704 transitions. [2021-03-11 14:38:48,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:48,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:48,051 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:38:48,051 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:38:48,052 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:48,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:38:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1575. [2021-03-11 14:38:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.473316391359593) internal successors, (7041), 1574 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7041 transitions. [2021-03-11 14:38:48,097 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7041 transitions. Word has length 28 [2021-03-11 14:38:48,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:48,098 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7041 transitions. [2021-03-11 14:38:48,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7041 transitions. [2021-03-11 14:38:48,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:48,100 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:48,100 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:48,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-03-11 14:38:48,100 INFO L428 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:48,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:48,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1303053686, now seen corresponding path program 356 times [2021-03-11 14:38:48,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:48,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812467341] [2021-03-11 14:38:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:48,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:48,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:48,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:48,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:48,114 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:48,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:48,123 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:48,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:48,136 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:48,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:48,153 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:48,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:48,175 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:48,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:48,221 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:38:48,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:38:48,271 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:48,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:48,311 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:48,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:48,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812467341] [2021-03-11 14:38:48,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:48,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:48,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269881624] [2021-03-11 14:38:48,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:48,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:48,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:48,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:48,359 INFO L87 Difference]: Start difference. First operand 1575 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:48,505 INFO L93 Difference]: Finished difference Result 2942 states and 11688 transitions. [2021-03-11 14:38:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:48,506 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:48,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:48,511 INFO L225 Difference]: With dead ends: 2942 [2021-03-11 14:38:48,511 INFO L226 Difference]: Without dead ends: 2923 [2021-03-11 14:38:48,512 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 298.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-03-11 14:38:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1570. [2021-03-11 14:38:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.479286169534736) internal successors, (7028), 1569 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7028 transitions. [2021-03-11 14:38:48,557 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7028 transitions. Word has length 28 [2021-03-11 14:38:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:48,557 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7028 transitions. [2021-03-11 14:38:48,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7028 transitions. [2021-03-11 14:38:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:48,560 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:48,560 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:48,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-03-11 14:38:48,560 INFO L428 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:48,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1546125610, now seen corresponding path program 357 times [2021-03-11 14:38:48,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:48,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576483068] [2021-03-11 14:38:48,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:48,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:48,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:48,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:48,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:48,574 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:48,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:48,583 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:48,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:48,597 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:48,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:48,614 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:48,636 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:48,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:48,682 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:48,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:48,716 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:38:48,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:38:48,758 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:48,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:48,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576483068] [2021-03-11 14:38:48,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:48,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:48,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485031021] [2021-03-11 14:38:48,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:48,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:48,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:48,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:48,796 INFO L87 Difference]: Start difference. First operand 1570 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:48,921 INFO L93 Difference]: Finished difference Result 2954 states and 11714 transitions. [2021-03-11 14:38:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:48,922 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:48,927 INFO L225 Difference]: With dead ends: 2954 [2021-03-11 14:38:48,927 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:38:48,927 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 248.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:48,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:38:48,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1578. [2021-03-11 14:38:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.465440710209258) internal successors, (7042), 1577 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7042 transitions. [2021-03-11 14:38:48,973 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7042 transitions. Word has length 28 [2021-03-11 14:38:48,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:48,973 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7042 transitions. [2021-03-11 14:38:48,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:48,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7042 transitions. [2021-03-11 14:38:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:48,975 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:48,975 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:48,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-03-11 14:38:48,975 INFO L428 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:48,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1719373302, now seen corresponding path program 358 times [2021-03-11 14:38:48,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:48,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761405187] [2021-03-11 14:38:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:48,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:48,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:48,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:48,990 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:48,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:48,999 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:48,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:49,012 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:49,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:49,030 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:49,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:49,052 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:49,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:49,099 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:49,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:49,135 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:49,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:49,176 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:49,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:49,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761405187] [2021-03-11 14:38:49,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:49,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:49,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849366307] [2021-03-11 14:38:49,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:49,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:49,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:49,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:49,214 INFO L87 Difference]: Start difference. First operand 1578 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:49,372 INFO L93 Difference]: Finished difference Result 2951 states and 11701 transitions. [2021-03-11 14:38:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:49,373 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:49,378 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:38:49,378 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:38:49,378 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 276.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:38:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1570. [2021-03-11 14:38:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4760994263862335) internal successors, (7023), 1569 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:49,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7023 transitions. [2021-03-11 14:38:49,424 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7023 transitions. Word has length 28 [2021-03-11 14:38:49,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:49,424 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7023 transitions. [2021-03-11 14:38:49,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:49,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7023 transitions. [2021-03-11 14:38:49,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:49,426 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:49,426 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:49,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-03-11 14:38:49,426 INFO L428 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:49,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:49,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1916202454, now seen corresponding path program 359 times [2021-03-11 14:38:49,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:49,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013844185] [2021-03-11 14:38:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:49,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:49,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:49,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:49,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:49,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:49,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:49,451 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:49,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:49,464 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:49,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:49,486 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:49,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:49,510 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:49,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:49,557 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:49,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:49,614 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:49,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:49,655 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:49,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:49,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013844185] [2021-03-11 14:38:49,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:49,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:49,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021472764] [2021-03-11 14:38:49,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:49,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:49,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:49,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:49,715 INFO L87 Difference]: Start difference. First operand 1570 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:49,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:49,859 INFO L93 Difference]: Finished difference Result 2938 states and 11676 transitions. [2021-03-11 14:38:49,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:49,859 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:49,865 INFO L225 Difference]: With dead ends: 2938 [2021-03-11 14:38:49,865 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:38:49,865 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 319.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:49,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:38:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1574. [2021-03-11 14:38:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4691671964399236) internal successors, (7030), 1573 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:49,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7030 transitions. [2021-03-11 14:38:49,911 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7030 transitions. Word has length 28 [2021-03-11 14:38:49,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:49,911 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7030 transitions. [2021-03-11 14:38:49,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7030 transitions. [2021-03-11 14:38:49,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:49,913 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:49,913 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:49,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-03-11 14:38:49,913 INFO L428 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:49,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:49,914 INFO L82 PathProgramCache]: Analyzing trace with hash -426797458, now seen corresponding path program 360 times [2021-03-11 14:38:49,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:49,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983221033] [2021-03-11 14:38:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:49,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:49,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:49,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:49,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:49,928 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:49,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:49,937 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:49,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:49,949 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:49,966 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:49,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:49,987 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:49,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:50,043 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:50,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:50,099 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:50,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:50,139 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:50,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:50,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983221033] [2021-03-11 14:38:50,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:50,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:50,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805373633] [2021-03-11 14:38:50,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:50,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:50,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:50,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:50,175 INFO L87 Difference]: Start difference. First operand 1574 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:50,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:50,344 INFO L93 Difference]: Finished difference Result 2941 states and 11678 transitions. [2021-03-11 14:38:50,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:50,344 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:50,350 INFO L225 Difference]: With dead ends: 2941 [2021-03-11 14:38:50,350 INFO L226 Difference]: Without dead ends: 2905 [2021-03-11 14:38:50,350 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 299.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-03-11 14:38:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 1555. [2021-03-11 14:38:50,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 4.499356499356499) internal successors, (6992), 1554 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:50,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 6992 transitions. [2021-03-11 14:38:50,396 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 6992 transitions. Word has length 28 [2021-03-11 14:38:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:50,396 INFO L480 AbstractCegarLoop]: Abstraction has 1555 states and 6992 transitions. [2021-03-11 14:38:50,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 6992 transitions. [2021-03-11 14:38:50,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:50,398 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:50,398 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:50,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-03-11 14:38:50,398 INFO L428 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:50,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:50,398 INFO L82 PathProgramCache]: Analyzing trace with hash 313455144, now seen corresponding path program 361 times [2021-03-11 14:38:50,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:50,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546270419] [2021-03-11 14:38:50,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:50,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:50,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:50,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:50,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:50,413 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:50,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:50,421 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:50,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:50,434 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:50,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:50,451 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:50,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:50,472 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:50,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:50,498 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:50,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:50,531 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:50,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:50,570 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:50,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:50,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546270419] [2021-03-11 14:38:50,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:50,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:50,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402798497] [2021-03-11 14:38:50,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:50,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:50,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:50,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:50,606 INFO L87 Difference]: Start difference. First operand 1555 states and 6992 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:50,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:50,771 INFO L93 Difference]: Finished difference Result 2905 states and 11627 transitions. [2021-03-11 14:38:50,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:50,772 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:50,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:50,777 INFO L225 Difference]: With dead ends: 2905 [2021-03-11 14:38:50,777 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:38:50,778 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:50,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:38:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1573. [2021-03-11 14:38:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.49236641221374) internal successors, (7062), 1572 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7062 transitions. [2021-03-11 14:38:50,824 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7062 transitions. Word has length 28 [2021-03-11 14:38:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:50,824 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7062 transitions. [2021-03-11 14:38:50,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7062 transitions. [2021-03-11 14:38:50,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:50,826 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:50,826 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:50,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-03-11 14:38:50,826 INFO L428 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:50,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:50,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1058157642, now seen corresponding path program 362 times [2021-03-11 14:38:50,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:50,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249631931] [2021-03-11 14:38:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:50,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:50,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:50,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:50,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:50,841 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:50,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:50,849 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:50,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:50,862 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:50,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:50,879 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:50,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:50,900 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:50,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:50,926 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:50,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:50,959 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:50,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:50,998 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:50,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:51,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249631931] [2021-03-11 14:38:51,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:51,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:51,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096908535] [2021-03-11 14:38:51,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:51,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:51,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:51,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:51,035 INFO L87 Difference]: Start difference. First operand 1573 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:51,200 INFO L93 Difference]: Finished difference Result 2906 states and 11624 transitions. [2021-03-11 14:38:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:51,206 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:38:51,206 INFO L226 Difference]: Without dead ends: 2885 [2021-03-11 14:38:51,206 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 247.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:51,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2021-03-11 14:38:51,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1568. [2021-03-11 14:38:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.497766432673899) internal successors, (7048), 1567 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:51,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7048 transitions. [2021-03-11 14:38:51,252 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7048 transitions. Word has length 28 [2021-03-11 14:38:51,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:51,252 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7048 transitions. [2021-03-11 14:38:51,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:51,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7048 transitions. [2021-03-11 14:38:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:51,254 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:51,254 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:51,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-03-11 14:38:51,254 INFO L428 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:51,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:51,254 INFO L82 PathProgramCache]: Analyzing trace with hash -759630236, now seen corresponding path program 363 times [2021-03-11 14:38:51,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:51,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821934777] [2021-03-11 14:38:51,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:51,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:51,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:51,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:51,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:51,269 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:51,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:51,277 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:51,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:51,290 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:51,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:51,307 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:51,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:51,328 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:51,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:51,354 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:51,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:51,409 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:51,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:51,448 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:51,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:51,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821934777] [2021-03-11 14:38:51,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:51,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:51,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743192300] [2021-03-11 14:38:51,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:51,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:51,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:51,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:51,484 INFO L87 Difference]: Start difference. First operand 1568 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:51,673 INFO L93 Difference]: Finished difference Result 2907 states and 11626 transitions. [2021-03-11 14:38:51,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:51,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:51,679 INFO L225 Difference]: With dead ends: 2907 [2021-03-11 14:38:51,679 INFO L226 Difference]: Without dead ends: 2892 [2021-03-11 14:38:51,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2021-03-11 14:38:51,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 1573. [2021-03-11 14:38:51,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.489185750636132) internal successors, (7057), 1572 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:51,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7057 transitions. [2021-03-11 14:38:51,725 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7057 transitions. Word has length 28 [2021-03-11 14:38:51,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:51,725 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7057 transitions. [2021-03-11 14:38:51,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:51,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7057 transitions. [2021-03-11 14:38:51,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:51,727 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:51,727 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:51,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-03-11 14:38:51,727 INFO L428 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:51,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:51,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1474477258, now seen corresponding path program 364 times [2021-03-11 14:38:51,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:51,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176294825] [2021-03-11 14:38:51,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:51,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:51,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:51,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:51,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:51,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:51,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:51,754 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:51,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:51,767 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:51,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:51,784 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:51,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:51,805 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:51,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:51,833 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:51,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:51,889 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:51,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:51,930 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:51,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:51,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176294825] [2021-03-11 14:38:51,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:51,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:51,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902815373] [2021-03-11 14:38:51,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:51,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:51,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:51,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:51,967 INFO L87 Difference]: Start difference. First operand 1573 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:52,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:52,143 INFO L93 Difference]: Finished difference Result 2910 states and 11627 transitions. [2021-03-11 14:38:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:52,144 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:52,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:52,149 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:38:52,150 INFO L226 Difference]: Without dead ends: 2887 [2021-03-11 14:38:52,150 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 281.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2021-03-11 14:38:52,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1568. [2021-03-11 14:38:52,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.494575622208041) internal successors, (7043), 1567 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:52,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7043 transitions. [2021-03-11 14:38:52,198 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7043 transitions. Word has length 28 [2021-03-11 14:38:52,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:52,198 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7043 transitions. [2021-03-11 14:38:52,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:52,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7043 transitions. [2021-03-11 14:38:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:52,201 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:52,201 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:52,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-03-11 14:38:52,201 INFO L428 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:52,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1596013220, now seen corresponding path program 365 times [2021-03-11 14:38:52,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:52,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041077982] [2021-03-11 14:38:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:52,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:52,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:52,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:52,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:52,216 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:52,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:52,225 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:52,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:52,238 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:52,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:52,256 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:52,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:52,277 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:52,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:52,305 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:52,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:52,339 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:52,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:52,381 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:52,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:52,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041077982] [2021-03-11 14:38:52,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:52,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:52,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594113384] [2021-03-11 14:38:52,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:52,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:52,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:52,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:52,419 INFO L87 Difference]: Start difference. First operand 1568 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:52,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:52,597 INFO L93 Difference]: Finished difference Result 2910 states and 11628 transitions. [2021-03-11 14:38:52,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:52,597 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:52,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:52,603 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:38:52,603 INFO L226 Difference]: Without dead ends: 2894 [2021-03-11 14:38:52,603 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 256.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:52,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-03-11 14:38:52,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 1574. [2021-03-11 14:38:52,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.484424666242848) internal successors, (7054), 1573 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:52,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7054 transitions. [2021-03-11 14:38:52,652 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:52,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:52,652 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7054 transitions. [2021-03-11 14:38:52,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:52,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7054 transitions. [2021-03-11 14:38:52,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:52,654 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:52,654 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:52,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-03-11 14:38:52,654 INFO L428 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:52,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1209549080, now seen corresponding path program 366 times [2021-03-11 14:38:52,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:52,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728134332] [2021-03-11 14:38:52,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:52,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:52,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:52,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:52,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:52,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:52,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:52,678 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:52,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:52,691 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:52,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:52,709 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:52,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:52,731 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:38:52,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:38:52,759 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:52,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:52,793 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:52,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:52,835 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:52,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:52,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728134332] [2021-03-11 14:38:52,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:52,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:52,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507357976] [2021-03-11 14:38:52,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:52,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:52,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:52,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:52,873 INFO L87 Difference]: Start difference. First operand 1574 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:53,036 INFO L93 Difference]: Finished difference Result 2912 states and 11626 transitions. [2021-03-11 14:38:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:53,036 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:53,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:53,042 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:38:53,042 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:38:53,042 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:38:53,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1563. [2021-03-11 14:38:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.500640204865557) internal successors, (7030), 1562 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7030 transitions. [2021-03-11 14:38:53,090 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7030 transitions. Word has length 28 [2021-03-11 14:38:53,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:53,090 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7030 transitions. [2021-03-11 14:38:53,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7030 transitions. [2021-03-11 14:38:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:53,092 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:53,093 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:53,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-03-11 14:38:53,093 INFO L428 AbstractCegarLoop]: === Iteration 375 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:53,093 INFO L82 PathProgramCache]: Analyzing trace with hash -192891122, now seen corresponding path program 367 times [2021-03-11 14:38:53,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:53,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440659879] [2021-03-11 14:38:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:53,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:53,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:53,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:53,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:53,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:53,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:53,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:53,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:53,129 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:53,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:53,147 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:53,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:53,169 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:53,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:53,197 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:53,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:53,231 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:53,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:53,271 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:53,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:53,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440659879] [2021-03-11 14:38:53,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:53,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:53,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044659446] [2021-03-11 14:38:53,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:53,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:53,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:53,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:53,309 INFO L87 Difference]: Start difference. First operand 1563 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:53,466 INFO L93 Difference]: Finished difference Result 2897 states and 11602 transitions. [2021-03-11 14:38:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:53,467 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:53,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:53,472 INFO L225 Difference]: With dead ends: 2897 [2021-03-11 14:38:53,472 INFO L226 Difference]: Without dead ends: 2882 [2021-03-11 14:38:53,472 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 255.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-03-11 14:38:53,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1572. [2021-03-11 14:38:53,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.4901336728198595) internal successors, (7054), 1571 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7054 transitions. [2021-03-11 14:38:53,521 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7054 transitions. Word has length 28 [2021-03-11 14:38:53,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:53,521 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7054 transitions. [2021-03-11 14:38:53,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7054 transitions. [2021-03-11 14:38:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:53,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:53,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:53,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2021-03-11 14:38:53,524 INFO L428 AbstractCegarLoop]: === Iteration 376 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:53,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:53,524 INFO L82 PathProgramCache]: Analyzing trace with hash 551811376, now seen corresponding path program 368 times [2021-03-11 14:38:53,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:53,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769098445] [2021-03-11 14:38:53,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:53,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:53,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:53,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:53,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:53,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:53,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:53,548 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:53,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:53,562 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:53,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:53,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:53,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:53,602 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:53,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:53,630 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:53,664 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:53,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:53,706 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:53,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:53,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769098445] [2021-03-11 14:38:53,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:53,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:53,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659098452] [2021-03-11 14:38:53,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:53,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:53,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:53,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:53,744 INFO L87 Difference]: Start difference. First operand 1572 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:53,931 INFO L93 Difference]: Finished difference Result 2898 states and 11599 transitions. [2021-03-11 14:38:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:53,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:53,938 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:38:53,938 INFO L226 Difference]: Without dead ends: 2877 [2021-03-11 14:38:53,938 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 259.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2021-03-11 14:38:53,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 1567. [2021-03-11 14:38:53,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.496168582375479) internal successors, (7041), 1566 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7041 transitions. [2021-03-11 14:38:53,986 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7041 transitions. Word has length 28 [2021-03-11 14:38:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:53,986 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7041 transitions. [2021-03-11 14:38:53,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:53,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7041 transitions. [2021-03-11 14:38:53,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:53,988 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:53,988 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:53,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2021-03-11 14:38:53,989 INFO L428 AbstractCegarLoop]: === Iteration 377 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:53,989 INFO L82 PathProgramCache]: Analyzing trace with hash -728120924, now seen corresponding path program 369 times [2021-03-11 14:38:53,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:53,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008544674] [2021-03-11 14:38:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:53,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:53,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:53,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:53,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:54,003 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:54,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:54,013 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:54,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:54,026 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:54,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:54,043 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:54,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:54,068 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:54,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:54,095 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:54,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:54,128 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:54,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:54,168 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:54,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:54,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008544674] [2021-03-11 14:38:54,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:54,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:54,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445999161] [2021-03-11 14:38:54,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:54,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:54,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:54,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:54,206 INFO L87 Difference]: Start difference. First operand 1567 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:54,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:54,374 INFO L93 Difference]: Finished difference Result 2894 states and 11591 transitions. [2021-03-11 14:38:54,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:54,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:54,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:54,380 INFO L225 Difference]: With dead ends: 2894 [2021-03-11 14:38:54,380 INFO L226 Difference]: Without dead ends: 2879 [2021-03-11 14:38:54,380 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 254.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-03-11 14:38:54,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1571. [2021-03-11 14:38:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.489171974522293) internal successors, (7048), 1570 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:54,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7048 transitions. [2021-03-11 14:38:54,425 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7048 transitions. Word has length 28 [2021-03-11 14:38:54,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:54,426 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7048 transitions. [2021-03-11 14:38:54,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:54,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7048 transitions. [2021-03-11 14:38:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:54,428 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:54,428 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:54,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2021-03-11 14:38:54,428 INFO L428 AbstractCegarLoop]: === Iteration 378 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:54,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:54,428 INFO L82 PathProgramCache]: Analyzing trace with hash -554873232, now seen corresponding path program 370 times [2021-03-11 14:38:54,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:54,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723130542] [2021-03-11 14:38:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:54,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:54,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:54,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:54,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:54,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:54,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:54,451 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:54,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:54,464 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:54,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:54,481 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:54,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:54,503 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:54,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:54,530 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:54,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:54,564 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:54,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:54,603 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:54,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:54,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:54,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723130542] [2021-03-11 14:38:54,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:54,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:54,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377603142] [2021-03-11 14:38:54,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:54,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:54,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:54,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:54,641 INFO L87 Difference]: Start difference. First operand 1571 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:54,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:54,824 INFO L93 Difference]: Finished difference Result 2893 states and 11585 transitions. [2021-03-11 14:38:54,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:54,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:54,830 INFO L225 Difference]: With dead ends: 2893 [2021-03-11 14:38:54,830 INFO L226 Difference]: Without dead ends: 2875 [2021-03-11 14:38:54,830 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 250.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:54,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2021-03-11 14:38:54,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1567. [2021-03-11 14:38:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.493614303959132) internal successors, (7037), 1566 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:54,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7037 transitions. [2021-03-11 14:38:54,876 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7037 transitions. Word has length 28 [2021-03-11 14:38:54,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:54,876 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7037 transitions. [2021-03-11 14:38:54,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:54,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7037 transitions. [2021-03-11 14:38:54,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:54,878 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:54,878 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:54,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2021-03-11 14:38:54,878 INFO L428 AbstractCegarLoop]: === Iteration 379 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:54,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:54,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1627522532, now seen corresponding path program 371 times [2021-03-11 14:38:54,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:54,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957016971] [2021-03-11 14:38:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:54,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:54,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:54,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:54,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:54,892 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:54,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:54,901 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:54,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:54,914 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:54,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:54,931 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:54,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:54,953 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:54,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:54,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:54,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:55,013 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:55,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:55,054 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:55,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:55,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:55,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957016971] [2021-03-11 14:38:55,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:55,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:55,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384120532] [2021-03-11 14:38:55,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:55,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:55,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:55,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:55,091 INFO L87 Difference]: Start difference. First operand 1567 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:55,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:55,245 INFO L93 Difference]: Finished difference Result 2896 states and 11591 transitions. [2021-03-11 14:38:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:55,246 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:55,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:55,251 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:38:55,251 INFO L226 Difference]: Without dead ends: 2880 [2021-03-11 14:38:55,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 251.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:55,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2021-03-11 14:38:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 1571. [2021-03-11 14:38:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.486624203821656) internal successors, (7044), 1570 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7044 transitions. [2021-03-11 14:38:55,296 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7044 transitions. Word has length 28 [2021-03-11 14:38:55,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:55,296 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7044 transitions. [2021-03-11 14:38:55,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7044 transitions. [2021-03-11 14:38:55,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:55,299 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:55,299 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:55,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2021-03-11 14:38:55,299 INFO L428 AbstractCegarLoop]: === Iteration 380 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:55,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:55,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1056067726, now seen corresponding path program 372 times [2021-03-11 14:38:55,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:55,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156450303] [2021-03-11 14:38:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:55,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:55,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:55,313 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:55,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:55,322 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:55,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:55,335 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:55,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:55,351 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:55,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:55,373 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:38:55,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:38:55,400 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:55,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:55,433 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:55,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:55,473 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:55,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:55,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156450303] [2021-03-11 14:38:55,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:55,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:55,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816289451] [2021-03-11 14:38:55,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:55,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:55,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:55,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:55,510 INFO L87 Difference]: Start difference. First operand 1571 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:55,655 INFO L93 Difference]: Finished difference Result 2894 states and 11583 transitions. [2021-03-11 14:38:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:55,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:55,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:55,661 INFO L225 Difference]: With dead ends: 2894 [2021-03-11 14:38:55,661 INFO L226 Difference]: Without dead ends: 2872 [2021-03-11 14:38:55,661 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 249.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:55,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-03-11 14:38:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1563. [2021-03-11 14:38:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.498079385403329) internal successors, (7026), 1562 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:55,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7026 transitions. [2021-03-11 14:38:55,707 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7026 transitions. Word has length 28 [2021-03-11 14:38:55,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:55,707 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7026 transitions. [2021-03-11 14:38:55,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7026 transitions. [2021-03-11 14:38:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:55,709 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:55,709 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:55,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2021-03-11 14:38:55,709 INFO L428 AbstractCegarLoop]: === Iteration 381 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:55,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:55,709 INFO L82 PathProgramCache]: Analyzing trace with hash -171884914, now seen corresponding path program 373 times [2021-03-11 14:38:55,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:55,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470197916] [2021-03-11 14:38:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:55,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:55,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:55,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:55,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:55,728 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:55,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:55,738 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:55,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:55,751 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:55,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:55,767 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:55,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:55,789 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:55,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:55,834 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:55,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:55,891 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:55,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:55,931 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:55,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:55,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470197916] [2021-03-11 14:38:55,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:55,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:55,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337851655] [2021-03-11 14:38:55,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:55,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:55,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:55,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:55,968 INFO L87 Difference]: Start difference. First operand 1563 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:56,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:56,118 INFO L93 Difference]: Finished difference Result 2901 states and 11606 transitions. [2021-03-11 14:38:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:56,119 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:56,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:56,124 INFO L225 Difference]: With dead ends: 2901 [2021-03-11 14:38:56,125 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:38:56,125 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 293.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:56,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:38:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1572. [2021-03-11 14:38:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.487587523870147) internal successors, (7050), 1571 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:56,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7050 transitions. [2021-03-11 14:38:56,170 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7050 transitions. Word has length 28 [2021-03-11 14:38:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:56,170 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7050 transitions. [2021-03-11 14:38:56,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:56,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7050 transitions. [2021-03-11 14:38:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:56,172 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:56,172 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:56,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2021-03-11 14:38:56,172 INFO L428 AbstractCegarLoop]: === Iteration 382 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:56,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:56,173 INFO L82 PathProgramCache]: Analyzing trace with hash 2062222580, now seen corresponding path program 374 times [2021-03-11 14:38:56,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:56,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366872334] [2021-03-11 14:38:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:56,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:56,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:56,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:56,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:56,187 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:56,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:56,196 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:56,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:56,209 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:56,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:56,226 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:56,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:56,247 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:56,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:56,293 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:56,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:56,348 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:56,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:56,388 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:56,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:56,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366872334] [2021-03-11 14:38:56,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:56,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:56,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055294919] [2021-03-11 14:38:56,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:56,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:56,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:56,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:56,426 INFO L87 Difference]: Start difference. First operand 1572 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:56,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:56,608 INFO L93 Difference]: Finished difference Result 2904 states and 11607 transitions. [2021-03-11 14:38:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:56,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:56,614 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:38:56,614 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:38:56,614 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 297.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:56,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:38:56,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1567. [2021-03-11 14:38:56,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.493614303959132) internal successors, (7037), 1566 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:56,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7037 transitions. [2021-03-11 14:38:56,661 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7037 transitions. Word has length 28 [2021-03-11 14:38:56,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:56,661 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7037 transitions. [2021-03-11 14:38:56,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:56,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7037 transitions. [2021-03-11 14:38:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:56,663 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:56,663 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:56,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2021-03-11 14:38:56,663 INFO L428 AbstractCegarLoop]: === Iteration 383 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:56,663 INFO L82 PathProgramCache]: Analyzing trace with hash 365970664, now seen corresponding path program 375 times [2021-03-11 14:38:56,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:56,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095172927] [2021-03-11 14:38:56,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:56,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:56,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:56,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:56,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:56,681 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:56,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:56,689 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:56,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:56,702 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:56,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:56,719 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:56,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:56,741 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:56,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:56,786 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:56,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:56,820 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:56,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:56,859 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:56,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:56,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095172927] [2021-03-11 14:38:56,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:56,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:56,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947742470] [2021-03-11 14:38:56,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:56,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:56,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:56,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:56,897 INFO L87 Difference]: Start difference. First operand 1567 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:57,046 INFO L93 Difference]: Finished difference Result 2896 states and 11591 transitions. [2021-03-11 14:38:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:57,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:57,052 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:38:57,053 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:38:57,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:57,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:38:57,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1571. [2021-03-11 14:38:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.486624203821656) internal successors, (7044), 1570 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7044 transitions. [2021-03-11 14:38:57,099 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7044 transitions. Word has length 28 [2021-03-11 14:38:57,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:57,099 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7044 transitions. [2021-03-11 14:38:57,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:57,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7044 transitions. [2021-03-11 14:38:57,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:57,101 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:57,101 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:57,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2021-03-11 14:38:57,102 INFO L428 AbstractCegarLoop]: === Iteration 384 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:57,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:57,105 INFO L82 PathProgramCache]: Analyzing trace with hash 539218356, now seen corresponding path program 376 times [2021-03-11 14:38:57,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:57,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501540544] [2021-03-11 14:38:57,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:57,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:57,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:57,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:57,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:57,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:57,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:57,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:57,144 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:57,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:57,161 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:57,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:57,182 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:57,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:57,228 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:38:57,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:38:57,261 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:57,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:57,300 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:57,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:57,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501540544] [2021-03-11 14:38:57,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:57,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:57,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835321699] [2021-03-11 14:38:57,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:57,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:57,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:57,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:57,338 INFO L87 Difference]: Start difference. First operand 1571 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:57,493 INFO L93 Difference]: Finished difference Result 2895 states and 11585 transitions. [2021-03-11 14:38:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:57,501 INFO L225 Difference]: With dead ends: 2895 [2021-03-11 14:38:57,501 INFO L226 Difference]: Without dead ends: 2877 [2021-03-11 14:38:57,501 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:57,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2021-03-11 14:38:57,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 1567. [2021-03-11 14:38:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.491060025542784) internal successors, (7033), 1566 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:57,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7033 transitions. [2021-03-11 14:38:57,550 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7033 transitions. Word has length 28 [2021-03-11 14:38:57,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:57,550 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7033 transitions. [2021-03-11 14:38:57,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7033 transitions. [2021-03-11 14:38:57,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:57,552 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:57,552 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:57,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2021-03-11 14:38:57,552 INFO L428 AbstractCegarLoop]: === Iteration 385 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:57,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:57,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1157033560, now seen corresponding path program 377 times [2021-03-11 14:38:57,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:57,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616631983] [2021-03-11 14:38:57,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:57,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:57,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:57,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:57,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:57,572 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:57,581 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:57,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:57,594 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:57,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:57,612 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:57,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:57,634 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:57,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:57,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:57,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:57,735 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:57,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:57,778 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:57,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:57,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616631983] [2021-03-11 14:38:57,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:57,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:57,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412034273] [2021-03-11 14:38:57,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:57,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:57,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:57,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:57,816 INFO L87 Difference]: Start difference. First operand 1567 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:58,005 INFO L93 Difference]: Finished difference Result 2902 states and 11599 transitions. [2021-03-11 14:38:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:58,006 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:58,011 INFO L225 Difference]: With dead ends: 2902 [2021-03-11 14:38:58,011 INFO L226 Difference]: Without dead ends: 2884 [2021-03-11 14:38:58,011 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 303.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:58,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-03-11 14:38:58,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1571. [2021-03-11 14:38:58,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484076433121019) internal successors, (7040), 1570 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7040 transitions. [2021-03-11 14:38:58,058 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7040 transitions. Word has length 28 [2021-03-11 14:38:58,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:58,058 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7040 transitions. [2021-03-11 14:38:58,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:58,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7040 transitions. [2021-03-11 14:38:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:58,060 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:58,060 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:58,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2021-03-11 14:38:58,060 INFO L428 AbstractCegarLoop]: === Iteration 386 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:58,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:58,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1077073934, now seen corresponding path program 378 times [2021-03-11 14:38:58,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:58,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586666361] [2021-03-11 14:38:58,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:58,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:58,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:58,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:58,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:58,075 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:58,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:58,084 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:58,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:58,097 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:58,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:58,114 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:58,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:58,137 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:38:58,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:38:58,183 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:38:58,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:38:58,238 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:58,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:58,279 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:58,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:58,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586666361] [2021-03-11 14:38:58,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:58,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:58,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732591271] [2021-03-11 14:38:58,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:58,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:58,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:58,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:58,316 INFO L87 Difference]: Start difference. First operand 1571 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:58,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:58,531 INFO L93 Difference]: Finished difference Result 2898 states and 11587 transitions. [2021-03-11 14:38:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:58,532 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:58,538 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:38:58,538 INFO L226 Difference]: Without dead ends: 2876 [2021-03-11 14:38:58,538 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 296.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:58,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2021-03-11 14:38:58,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 1563. [2021-03-11 14:38:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.495518565941101) internal successors, (7022), 1562 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:58,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7022 transitions. [2021-03-11 14:38:58,584 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7022 transitions. Word has length 28 [2021-03-11 14:38:58,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:58,584 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7022 transitions. [2021-03-11 14:38:58,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:58,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7022 transitions. [2021-03-11 14:38:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:58,586 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:58,586 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:58,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2021-03-11 14:38:58,586 INFO L428 AbstractCegarLoop]: === Iteration 387 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:58,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:58,586 INFO L82 PathProgramCache]: Analyzing trace with hash 583320688, now seen corresponding path program 379 times [2021-03-11 14:38:58,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:58,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938135302] [2021-03-11 14:38:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:58,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:58,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:58,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:58,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:58,601 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:58,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:58,610 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:58,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:58,623 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:58,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:58,640 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:58,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:58,662 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:38:58,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:38:58,688 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:58,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:58,722 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:58,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:58,764 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:58,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:58,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938135302] [2021-03-11 14:38:58,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:58,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:58,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109039357] [2021-03-11 14:38:58,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:58,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:58,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:58,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:58,802 INFO L87 Difference]: Start difference. First operand 1563 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:59,007 INFO L93 Difference]: Finished difference Result 2906 states and 11614 transitions. [2021-03-11 14:38:59,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:59,008 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:59,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:59,013 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:38:59,013 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:38:59,013 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 255.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:59,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:38:59,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1573. [2021-03-11 14:38:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.483460559796438) internal successors, (7048), 1572 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7048 transitions. [2021-03-11 14:38:59,059 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7048 transitions. Word has length 28 [2021-03-11 14:38:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:59,059 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7048 transitions. [2021-03-11 14:38:59,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7048 transitions. [2021-03-11 14:38:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:59,061 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:59,061 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:59,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2021-03-11 14:38:59,061 INFO L428 AbstractCegarLoop]: === Iteration 388 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:59,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2072725684, now seen corresponding path program 380 times [2021-03-11 14:38:59,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:59,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094232885] [2021-03-11 14:38:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:59,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:59,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:59,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:59,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:59,076 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:59,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:59,085 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:59,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:59,098 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:59,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:59,115 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:59,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:59,137 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:38:59,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:38:59,163 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:59,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:59,197 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:59,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:59,238 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:59,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:59,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094232885] [2021-03-11 14:38:59,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:59,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:59,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170231382] [2021-03-11 14:38:59,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:59,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:59,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:59,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:59,275 INFO L87 Difference]: Start difference. First operand 1573 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:59,486 INFO L93 Difference]: Finished difference Result 2908 states and 11612 transitions. [2021-03-11 14:38:59,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:59,487 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:59,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:59,492 INFO L225 Difference]: With dead ends: 2908 [2021-03-11 14:38:59,492 INFO L226 Difference]: Without dead ends: 2884 [2021-03-11 14:38:59,492 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-03-11 14:38:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1567. [2021-03-11 14:38:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.491060025542784) internal successors, (7033), 1566 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7033 transitions. [2021-03-11 14:38:59,538 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7033 transitions. Word has length 28 [2021-03-11 14:38:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:59,538 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7033 transitions. [2021-03-11 14:38:59,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7033 transitions. [2021-03-11 14:38:59,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:59,540 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:59,540 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:59,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2021-03-11 14:38:59,541 INFO L428 AbstractCegarLoop]: === Iteration 389 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:59,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:59,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1121176266, now seen corresponding path program 381 times [2021-03-11 14:38:59,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:59,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324823936] [2021-03-11 14:38:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:59,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:59,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:59,555 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:59,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:59,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:59,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:38:59,577 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:38:59,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:38:59,594 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:38:59,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:38:59,616 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:38:59,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:38:59,643 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:38:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:38:59,677 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:38:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:38:59,718 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:38:59,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:38:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:38:59,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324823936] [2021-03-11 14:38:59,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:38:59,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:38:59,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900760580] [2021-03-11 14:38:59,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:38:59,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:38:59,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:38:59,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:38:59,756 INFO L87 Difference]: Start difference. First operand 1567 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:38:59,916 INFO L93 Difference]: Finished difference Result 2900 states and 11596 transitions. [2021-03-11 14:38:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:38:59,917 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:38:59,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:38:59,922 INFO L225 Difference]: With dead ends: 2900 [2021-03-11 14:38:59,922 INFO L226 Difference]: Without dead ends: 2884 [2021-03-11 14:38:59,923 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 254.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:38:59,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-03-11 14:38:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1571. [2021-03-11 14:38:59,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484076433121019) internal successors, (7040), 1570 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7040 transitions. [2021-03-11 14:38:59,968 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7040 transitions. Word has length 28 [2021-03-11 14:38:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:38:59,968 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7040 transitions. [2021-03-11 14:38:59,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:38:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7040 transitions. [2021-03-11 14:38:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:38:59,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:38:59,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:38:59,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2021-03-11 14:38:59,971 INFO L428 AbstractCegarLoop]: === Iteration 390 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:38:59,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:38:59,971 INFO L82 PathProgramCache]: Analyzing trace with hash 549721460, now seen corresponding path program 382 times [2021-03-11 14:38:59,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:38:59,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636629350] [2021-03-11 14:38:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:38:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:38:59,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:59,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:38:59,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:38:59,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:38:59,985 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:38:59,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:38:59,994 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:38:59,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:00,008 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:00,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:00,025 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:00,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:00,047 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:00,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:00,074 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:00,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:00,109 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:00,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:00,150 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:00,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636629350] [2021-03-11 14:39:00,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:00,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:00,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038564351] [2021-03-11 14:39:00,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:00,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:00,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:00,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:00,189 INFO L87 Difference]: Start difference. First operand 1571 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:00,398 INFO L93 Difference]: Finished difference Result 2898 states and 11588 transitions. [2021-03-11 14:39:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:00,399 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:00,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:00,405 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:39:00,405 INFO L226 Difference]: Without dead ends: 2880 [2021-03-11 14:39:00,405 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 258.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:00,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2021-03-11 14:39:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 1567. [2021-03-11 14:39:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.488505747126437) internal successors, (7029), 1566 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7029 transitions. [2021-03-11 14:39:00,451 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7029 transitions. Word has length 28 [2021-03-11 14:39:00,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:00,451 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7029 transitions. [2021-03-11 14:39:00,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:00,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7029 transitions. [2021-03-11 14:39:00,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:00,453 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:00,453 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:00,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2021-03-11 14:39:00,453 INFO L428 AbstractCegarLoop]: === Iteration 391 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:00,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:00,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1537495882, now seen corresponding path program 383 times [2021-03-11 14:39:00,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:00,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928340337] [2021-03-11 14:39:00,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:00,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:00,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:00,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:00,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:00,468 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:00,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:00,477 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:00,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:00,490 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:00,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:00,508 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:00,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:00,530 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:00,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:00,557 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:00,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:00,609 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:00,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:00,650 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:00,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:00,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:00,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928340337] [2021-03-11 14:39:00,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:00,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:00,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040248772] [2021-03-11 14:39:00,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:00,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:00,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:00,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:00,688 INFO L87 Difference]: Start difference. First operand 1567 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:00,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:00,901 INFO L93 Difference]: Finished difference Result 2904 states and 11600 transitions. [2021-03-11 14:39:00,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:00,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:00,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:00,907 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:00,907 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:39:00,907 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 280.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:00,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:39:00,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1571. [2021-03-11 14:39:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4815286624203825) internal successors, (7036), 1570 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:00,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7036 transitions. [2021-03-11 14:39:00,953 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7036 transitions. Word has length 28 [2021-03-11 14:39:00,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:00,953 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7036 transitions. [2021-03-11 14:39:00,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7036 transitions. [2021-03-11 14:39:00,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:00,955 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:00,955 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:00,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2021-03-11 14:39:00,956 INFO L428 AbstractCegarLoop]: === Iteration 392 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:00,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:00,956 INFO L82 PathProgramCache]: Analyzing trace with hash -523363920, now seen corresponding path program 384 times [2021-03-11 14:39:00,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:00,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123824522] [2021-03-11 14:39:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:00,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:00,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:00,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:00,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:00,970 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:00,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:00,979 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:00,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:00,993 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:00,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:01,011 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:01,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:01,034 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:01,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:01,062 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:01,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:01,115 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:01,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:01,157 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:01,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123824522] [2021-03-11 14:39:01,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:01,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:01,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761075548] [2021-03-11 14:39:01,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:01,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:01,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:01,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:01,196 INFO L87 Difference]: Start difference. First operand 1571 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:01,360 INFO L93 Difference]: Finished difference Result 2900 states and 11588 transitions. [2021-03-11 14:39:01,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:01,361 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:01,367 INFO L225 Difference]: With dead ends: 2900 [2021-03-11 14:39:01,367 INFO L226 Difference]: Without dead ends: 2874 [2021-03-11 14:39:01,367 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 279.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:01,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2021-03-11 14:39:01,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 1559. [2021-03-11 14:39:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 4.5) internal successors, (7011), 1558 states have internal predecessors, (7011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 7011 transitions. [2021-03-11 14:39:01,413 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 7011 transitions. Word has length 28 [2021-03-11 14:39:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:01,413 INFO L480 AbstractCegarLoop]: Abstraction has 1559 states and 7011 transitions. [2021-03-11 14:39:01,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 7011 transitions. [2021-03-11 14:39:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:01,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:01,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:01,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2021-03-11 14:39:01,415 INFO L428 AbstractCegarLoop]: === Iteration 393 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:01,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:01,415 INFO L82 PathProgramCache]: Analyzing trace with hash -129443996, now seen corresponding path program 385 times [2021-03-11 14:39:01,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:01,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107644072] [2021-03-11 14:39:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:01,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:01,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:01,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:01,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:01,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:01,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:01,440 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:01,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:01,454 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:01,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:01,474 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:01,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:01,500 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:01,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:01,529 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:01,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:01,565 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:01,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:01,607 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:01,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:01,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107644072] [2021-03-11 14:39:01,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:01,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:01,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441731683] [2021-03-11 14:39:01,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:01,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:01,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:01,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:01,646 INFO L87 Difference]: Start difference. First operand 1559 states and 7011 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:01,813 INFO L93 Difference]: Finished difference Result 2919 states and 11668 transitions. [2021-03-11 14:39:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:01,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:01,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:01,819 INFO L225 Difference]: With dead ends: 2919 [2021-03-11 14:39:01,819 INFO L226 Difference]: Without dead ends: 2904 [2021-03-11 14:39:01,819 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 270.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2021-03-11 14:39:01,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1574. [2021-03-11 14:39:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.490146217418944) internal successors, (7063), 1573 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:01,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7063 transitions. [2021-03-11 14:39:01,866 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7063 transitions. Word has length 28 [2021-03-11 14:39:01,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:01,866 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7063 transitions. [2021-03-11 14:39:01,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:01,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7063 transitions. [2021-03-11 14:39:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:01,868 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:01,868 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:01,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2021-03-11 14:39:01,868 INFO L428 AbstractCegarLoop]: === Iteration 394 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:01,869 INFO L82 PathProgramCache]: Analyzing trace with hash 615258502, now seen corresponding path program 386 times [2021-03-11 14:39:01,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:01,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238155302] [2021-03-11 14:39:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:01,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:01,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:01,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:01,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:01,883 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:01,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:01,893 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:01,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:01,907 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:01,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:01,925 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:01,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:01,948 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:01,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:01,976 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:01,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:02,011 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:02,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:02,054 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:02,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:02,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238155302] [2021-03-11 14:39:02,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:02,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:02,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019971630] [2021-03-11 14:39:02,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:02,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:02,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:02,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:02,093 INFO L87 Difference]: Start difference. First operand 1574 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:02,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:02,260 INFO L93 Difference]: Finished difference Result 2920 states and 11665 transitions. [2021-03-11 14:39:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:02,261 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:02,266 INFO L225 Difference]: With dead ends: 2920 [2021-03-11 14:39:02,266 INFO L226 Difference]: Without dead ends: 2899 [2021-03-11 14:39:02,266 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 264.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:02,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-03-11 14:39:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1569. [2021-03-11 14:39:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.495535714285714) internal successors, (7049), 1568 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7049 transitions. [2021-03-11 14:39:02,311 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7049 transitions. Word has length 28 [2021-03-11 14:39:02,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:02,311 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7049 transitions. [2021-03-11 14:39:02,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7049 transitions. [2021-03-11 14:39:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:02,313 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:02,313 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:02,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2021-03-11 14:39:02,314 INFO L428 AbstractCegarLoop]: === Iteration 395 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:02,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:02,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1202529376, now seen corresponding path program 387 times [2021-03-11 14:39:02,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:02,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944802234] [2021-03-11 14:39:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:02,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:02,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:02,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:02,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:02,328 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:02,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:02,338 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:02,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:02,351 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:02,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:02,369 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:02,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:02,392 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:02,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:02,419 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:02,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:02,475 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:02,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:02,516 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:02,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:02,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944802234] [2021-03-11 14:39:02,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:02,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:02,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530936937] [2021-03-11 14:39:02,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:02,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:02,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:02,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:02,554 INFO L87 Difference]: Start difference. First operand 1569 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:02,765 INFO L93 Difference]: Finished difference Result 2921 states and 11667 transitions. [2021-03-11 14:39:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:02,765 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:02,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:02,771 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:39:02,771 INFO L226 Difference]: Without dead ends: 2906 [2021-03-11 14:39:02,771 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 280.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2021-03-11 14:39:02,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1574. [2021-03-11 14:39:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.486967577876669) internal successors, (7058), 1573 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7058 transitions. [2021-03-11 14:39:02,817 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7058 transitions. Word has length 28 [2021-03-11 14:39:02,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:02,817 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7058 transitions. [2021-03-11 14:39:02,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7058 transitions. [2021-03-11 14:39:02,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:02,819 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:02,819 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:02,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2021-03-11 14:39:02,819 INFO L428 AbstractCegarLoop]: === Iteration 396 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:02,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1031578118, now seen corresponding path program 388 times [2021-03-11 14:39:02,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:02,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829733346] [2021-03-11 14:39:02,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:02,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:02,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:02,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:02,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:02,834 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:02,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:02,843 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:02,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:02,857 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:02,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:02,875 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:02,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:02,897 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:02,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:02,925 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:02,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:02,982 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:02,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:03,023 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:03,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:03,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829733346] [2021-03-11 14:39:03,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:03,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:03,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486456930] [2021-03-11 14:39:03,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:03,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:03,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:03,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:03,062 INFO L87 Difference]: Start difference. First operand 1574 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:03,278 INFO L93 Difference]: Finished difference Result 2924 states and 11668 transitions. [2021-03-11 14:39:03,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:03,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:03,284 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:39:03,284 INFO L226 Difference]: Without dead ends: 2901 [2021-03-11 14:39:03,285 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 287.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2021-03-11 14:39:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1569. [2021-03-11 14:39:03,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.49234693877551) internal successors, (7044), 1568 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7044 transitions. [2021-03-11 14:39:03,330 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7044 transitions. Word has length 28 [2021-03-11 14:39:03,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:03,330 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7044 transitions. [2021-03-11 14:39:03,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7044 transitions. [2021-03-11 14:39:03,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:03,333 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:03,333 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:03,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2021-03-11 14:39:03,333 INFO L428 AbstractCegarLoop]: === Iteration 397 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:03,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:03,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1153114080, now seen corresponding path program 389 times [2021-03-11 14:39:03,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:03,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454004885] [2021-03-11 14:39:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:03,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:03,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:03,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:03,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:03,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:03,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:03,357 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:03,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:03,370 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:03,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:03,388 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:03,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:03,412 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:03,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:03,439 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:03,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:03,473 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:03,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:03,515 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:03,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:03,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454004885] [2021-03-11 14:39:03,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:03,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:03,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816784173] [2021-03-11 14:39:03,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:03,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:03,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:03,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:03,554 INFO L87 Difference]: Start difference. First operand 1569 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:03,695 INFO L93 Difference]: Finished difference Result 2924 states and 11669 transitions. [2021-03-11 14:39:03,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:03,695 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:03,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:03,701 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:39:03,701 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:39:03,701 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 261.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:39:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1575. [2021-03-11 14:39:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.482210927573062) internal successors, (7055), 1574 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:03,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7055 transitions. [2021-03-11 14:39:03,746 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7055 transitions. Word has length 28 [2021-03-11 14:39:03,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:03,746 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7055 transitions. [2021-03-11 14:39:03,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7055 transitions. [2021-03-11 14:39:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:03,749 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:03,749 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:03,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2021-03-11 14:39:03,749 INFO L428 AbstractCegarLoop]: === Iteration 398 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:03,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:03,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1652448220, now seen corresponding path program 390 times [2021-03-11 14:39:03,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:03,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046561297] [2021-03-11 14:39:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:03,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:03,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:03,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:03,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:03,768 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:03,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:03,778 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:03,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:03,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:03,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:03,809 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:03,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:03,833 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:03,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:03,861 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:03,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:03,895 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:03,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:03,937 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:03,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:03,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046561297] [2021-03-11 14:39:03,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:03,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:03,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501642731] [2021-03-11 14:39:03,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:03,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:03,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:03,976 INFO L87 Difference]: Start difference. First operand 1575 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:04,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:04,124 INFO L93 Difference]: Finished difference Result 2926 states and 11667 transitions. [2021-03-11 14:39:04,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:04,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:04,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:04,130 INFO L225 Difference]: With dead ends: 2926 [2021-03-11 14:39:04,130 INFO L226 Difference]: Without dead ends: 2897 [2021-03-11 14:39:04,130 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2021-03-11 14:39:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1564. [2021-03-11 14:39:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.497760716570697) internal successors, (7030), 1563 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7030 transitions. [2021-03-11 14:39:04,176 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7030 transitions. Word has length 28 [2021-03-11 14:39:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:04,176 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7030 transitions. [2021-03-11 14:39:04,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7030 transitions. [2021-03-11 14:39:04,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:04,178 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:04,178 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:04,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2021-03-11 14:39:04,178 INFO L428 AbstractCegarLoop]: === Iteration 399 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:04,178 INFO L82 PathProgramCache]: Analyzing trace with hash 458301326, now seen corresponding path program 391 times [2021-03-11 14:39:04,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:04,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170861082] [2021-03-11 14:39:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:04,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:04,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:04,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:04,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:04,193 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:04,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:04,202 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:04,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:04,216 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:04,234 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:04,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:04,257 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:04,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:04,286 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:04,321 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:04,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:04,362 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:04,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:04,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170861082] [2021-03-11 14:39:04,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:04,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:04,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819264866] [2021-03-11 14:39:04,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:04,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:04,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:04,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:04,400 INFO L87 Difference]: Start difference. First operand 1564 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:04,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:04,569 INFO L93 Difference]: Finished difference Result 2918 states and 11661 transitions. [2021-03-11 14:39:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:04,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:04,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:04,575 INFO L225 Difference]: With dead ends: 2918 [2021-03-11 14:39:04,575 INFO L226 Difference]: Without dead ends: 2903 [2021-03-11 14:39:04,575 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:04,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-03-11 14:39:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1574. [2021-03-11 14:39:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.486967577876669) internal successors, (7058), 1573 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:04,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7058 transitions. [2021-03-11 14:39:04,622 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7058 transitions. Word has length 28 [2021-03-11 14:39:04,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:04,622 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7058 transitions. [2021-03-11 14:39:04,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7058 transitions. [2021-03-11 14:39:04,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:04,624 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:04,624 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:04,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2021-03-11 14:39:04,624 INFO L428 AbstractCegarLoop]: === Iteration 400 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:04,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:04,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1203003824, now seen corresponding path program 392 times [2021-03-11 14:39:04,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:04,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485536265] [2021-03-11 14:39:04,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:04,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:04,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:04,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:04,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:04,639 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:04,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:04,649 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:04,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:04,663 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:04,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:04,681 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:04,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:04,704 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:04,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:04,734 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:04,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:04,769 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:04,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:04,811 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:04,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:04,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485536265] [2021-03-11 14:39:04,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:04,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:04,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377057644] [2021-03-11 14:39:04,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:04,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:04,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:04,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:04,850 INFO L87 Difference]: Start difference. First operand 1574 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:04,994 INFO L93 Difference]: Finished difference Result 2919 states and 11658 transitions. [2021-03-11 14:39:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:04,994 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:05,000 INFO L225 Difference]: With dead ends: 2919 [2021-03-11 14:39:05,000 INFO L226 Difference]: Without dead ends: 2898 [2021-03-11 14:39:05,000 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:05,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-03-11 14:39:05,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 1569. [2021-03-11 14:39:05,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.49234693877551) internal successors, (7044), 1568 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7044 transitions. [2021-03-11 14:39:05,046 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7044 transitions. Word has length 28 [2021-03-11 14:39:05,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:05,046 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7044 transitions. [2021-03-11 14:39:05,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7044 transitions. [2021-03-11 14:39:05,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:05,048 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:05,048 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:05,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2021-03-11 14:39:05,048 INFO L428 AbstractCegarLoop]: === Iteration 401 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:05,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1150013856, now seen corresponding path program 393 times [2021-03-11 14:39:05,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:05,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084647900] [2021-03-11 14:39:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:05,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:05,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:05,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:05,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:05,064 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:05,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:05,073 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:05,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:05,087 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:05,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:05,105 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:05,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:05,128 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:05,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:05,156 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:05,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:05,190 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:05,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:05,233 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:05,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:05,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084647900] [2021-03-11 14:39:05,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:05,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:05,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842841640] [2021-03-11 14:39:05,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:05,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:05,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:05,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:05,271 INFO L87 Difference]: Start difference. First operand 1569 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:05,418 INFO L93 Difference]: Finished difference Result 2919 states and 11658 transitions. [2021-03-11 14:39:05,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:05,419 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:05,424 INFO L225 Difference]: With dead ends: 2919 [2021-03-11 14:39:05,425 INFO L226 Difference]: Without dead ends: 2904 [2021-03-11 14:39:05,425 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:05,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2021-03-11 14:39:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1574. [2021-03-11 14:39:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.483788938334393) internal successors, (7053), 1573 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7053 transitions. [2021-03-11 14:39:05,471 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7053 transitions. Word has length 28 [2021-03-11 14:39:05,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:05,471 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7053 transitions. [2021-03-11 14:39:05,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7053 transitions. [2021-03-11 14:39:05,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:05,473 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:05,473 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:05,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2021-03-11 14:39:05,473 INFO L428 AbstractCegarLoop]: === Iteration 402 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:05,474 INFO L82 PathProgramCache]: Analyzing trace with hash 512638832, now seen corresponding path program 394 times [2021-03-11 14:39:05,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:05,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145594958] [2021-03-11 14:39:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:05,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:05,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:05,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:05,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:05,489 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:05,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:05,499 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:05,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:05,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:05,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:05,531 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:05,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:05,554 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:05,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:05,583 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:05,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:05,616 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:05,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:05,657 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:05,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:05,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145594958] [2021-03-11 14:39:05,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:05,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:05,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492358441] [2021-03-11 14:39:05,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:05,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:05,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:05,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:05,695 INFO L87 Difference]: Start difference. First operand 1574 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:05,844 INFO L93 Difference]: Finished difference Result 2921 states and 11657 transitions. [2021-03-11 14:39:05,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:05,845 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:05,850 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:39:05,850 INFO L226 Difference]: Without dead ends: 2899 [2021-03-11 14:39:05,850 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 261.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:05,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-03-11 14:39:05,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1569. [2021-03-11 14:39:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.489158163265306) internal successors, (7039), 1568 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7039 transitions. [2021-03-11 14:39:05,896 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7039 transitions. Word has length 28 [2021-03-11 14:39:05,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:05,896 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7039 transitions. [2021-03-11 14:39:05,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7039 transitions. [2021-03-11 14:39:05,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:05,898 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:05,898 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:05,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2021-03-11 14:39:05,898 INFO L428 AbstractCegarLoop]: === Iteration 403 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:05,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:05,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1205629600, now seen corresponding path program 395 times [2021-03-11 14:39:05,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:05,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266210643] [2021-03-11 14:39:05,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:05,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:05,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:05,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:05,913 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:05,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:05,922 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:05,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:05,937 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:05,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:05,955 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:05,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:05,978 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:05,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:06,007 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:06,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:06,042 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:06,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:06,083 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:06,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:06,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266210643] [2021-03-11 14:39:06,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:06,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:06,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027487662] [2021-03-11 14:39:06,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:06,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:06,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:06,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:06,122 INFO L87 Difference]: Start difference. First operand 1569 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:06,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:06,266 INFO L93 Difference]: Finished difference Result 2922 states and 11660 transitions. [2021-03-11 14:39:06,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:06,266 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:06,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:06,272 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:39:06,272 INFO L226 Difference]: Without dead ends: 2906 [2021-03-11 14:39:06,272 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2021-03-11 14:39:06,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1575. [2021-03-11 14:39:06,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.479034307496823) internal successors, (7050), 1574 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:06,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7050 transitions. [2021-03-11 14:39:06,318 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7050 transitions. Word has length 28 [2021-03-11 14:39:06,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:06,318 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7050 transitions. [2021-03-11 14:39:06,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:06,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7050 transitions. [2021-03-11 14:39:06,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:06,320 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:06,320 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:06,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2021-03-11 14:39:06,320 INFO L428 AbstractCegarLoop]: === Iteration 404 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:06,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:06,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2123579790, now seen corresponding path program 396 times [2021-03-11 14:39:06,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:06,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378845144] [2021-03-11 14:39:06,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:06,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:06,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:06,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:06,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:06,335 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:06,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:06,344 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:06,358 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:06,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:06,376 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:06,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:06,400 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:06,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:06,429 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:06,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:06,464 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:06,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:06,505 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:06,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:06,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:06,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378845144] [2021-03-11 14:39:06,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:06,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:06,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65826738] [2021-03-11 14:39:06,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:06,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:06,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:06,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:06,544 INFO L87 Difference]: Start difference. First operand 1575 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:06,700 INFO L93 Difference]: Finished difference Result 2923 states and 11656 transitions. [2021-03-11 14:39:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:06,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:06,706 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:39:06,706 INFO L226 Difference]: Without dead ends: 2895 [2021-03-11 14:39:06,706 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:06,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-03-11 14:39:06,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 1564. [2021-03-11 14:39:06,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.494561740243122) internal successors, (7025), 1563 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:06,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7025 transitions. [2021-03-11 14:39:06,751 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7025 transitions. Word has length 28 [2021-03-11 14:39:06,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:06,751 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7025 transitions. [2021-03-11 14:39:06,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7025 transitions. [2021-03-11 14:39:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:06,753 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:06,753 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:06,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2021-03-11 14:39:06,753 INFO L428 AbstractCegarLoop]: === Iteration 405 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:06,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:06,753 INFO L82 PathProgramCache]: Analyzing trace with hash 479307534, now seen corresponding path program 397 times [2021-03-11 14:39:06,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:06,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369247558] [2021-03-11 14:39:06,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:06,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:06,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:06,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:06,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:06,768 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:06,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:06,778 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:06,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:06,792 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:06,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:06,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:06,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:06,834 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:06,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:06,864 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:06,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:06,922 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:06,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:06,963 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:07,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:07,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369247558] [2021-03-11 14:39:07,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:07,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:07,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897870980] [2021-03-11 14:39:07,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:07,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:07,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:07,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:07,002 INFO L87 Difference]: Start difference. First operand 1564 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:07,158 INFO L93 Difference]: Finished difference Result 2923 states and 11667 transitions. [2021-03-11 14:39:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:07,164 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:39:07,164 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:39:07,164 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 290.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:39:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1574. [2021-03-11 14:39:07,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.483788938334393) internal successors, (7053), 1573 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7053 transitions. [2021-03-11 14:39:07,210 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7053 transitions. Word has length 28 [2021-03-11 14:39:07,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:07,210 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7053 transitions. [2021-03-11 14:39:07,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:07,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7053 transitions. [2021-03-11 14:39:07,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:07,213 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:07,213 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:07,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2021-03-11 14:39:07,213 INFO L428 AbstractCegarLoop]: === Iteration 406 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:07,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:07,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1581552268, now seen corresponding path program 398 times [2021-03-11 14:39:07,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:07,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443017678] [2021-03-11 14:39:07,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:07,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:07,228 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:07,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:07,237 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:07,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:07,251 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:07,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:07,269 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:07,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:07,293 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:07,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:07,322 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:07,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:07,379 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:07,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:07,422 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:07,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:07,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443017678] [2021-03-11 14:39:07,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:07,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:07,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442454277] [2021-03-11 14:39:07,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:07,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:07,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:07,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:07,461 INFO L87 Difference]: Start difference. First operand 1574 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:07,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:07,608 INFO L93 Difference]: Finished difference Result 2926 states and 11668 transitions. [2021-03-11 14:39:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:07,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:07,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:07,614 INFO L225 Difference]: With dead ends: 2926 [2021-03-11 14:39:07,614 INFO L226 Difference]: Without dead ends: 2903 [2021-03-11 14:39:07,614 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 293.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:07,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-03-11 14:39:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1569. [2021-03-11 14:39:07,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.489158163265306) internal successors, (7039), 1568 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:07,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7039 transitions. [2021-03-11 14:39:07,659 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7039 transitions. Word has length 28 [2021-03-11 14:39:07,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:07,659 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7039 transitions. [2021-03-11 14:39:07,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7039 transitions. [2021-03-11 14:39:07,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:07,662 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:07,662 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:07,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2021-03-11 14:39:07,662 INFO L428 AbstractCegarLoop]: === Iteration 407 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:07,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:07,662 INFO L82 PathProgramCache]: Analyzing trace with hash -55922268, now seen corresponding path program 399 times [2021-03-11 14:39:07,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:07,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325538287] [2021-03-11 14:39:07,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:07,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:07,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:07,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:07,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:07,677 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:07,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:07,707 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:07,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:07,721 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:07,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:07,738 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:07,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:07,761 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:07,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:07,790 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:07,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:07,824 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:07,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:07,864 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:07,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:07,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325538287] [2021-03-11 14:39:07,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:07,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:07,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253043822] [2021-03-11 14:39:07,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:07,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:07,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:07,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:07,903 INFO L87 Difference]: Start difference. First operand 1569 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:08,053 INFO L93 Difference]: Finished difference Result 2922 states and 11660 transitions. [2021-03-11 14:39:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:08,053 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:08,059 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:39:08,059 INFO L226 Difference]: Without dead ends: 2907 [2021-03-11 14:39:08,059 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 280.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:08,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-03-11 14:39:08,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1574. [2021-03-11 14:39:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.480610298792117) internal successors, (7048), 1573 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7048 transitions. [2021-03-11 14:39:08,104 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7048 transitions. Word has length 28 [2021-03-11 14:39:08,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:08,104 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7048 transitions. [2021-03-11 14:39:08,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7048 transitions. [2021-03-11 14:39:08,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:08,106 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:08,106 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:08,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2021-03-11 14:39:08,106 INFO L428 AbstractCegarLoop]: === Iteration 408 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:08,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:08,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1606730420, now seen corresponding path program 400 times [2021-03-11 14:39:08,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:08,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508543400] [2021-03-11 14:39:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:08,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:08,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:08,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:08,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:08,121 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:08,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:08,130 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:08,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:08,143 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:08,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:08,160 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:08,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:08,183 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:08,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:08,210 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:08,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:08,243 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:08,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:08,284 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:08,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:08,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508543400] [2021-03-11 14:39:08,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:08,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:08,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066972128] [2021-03-11 14:39:08,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:08,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:08,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:08,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:08,322 INFO L87 Difference]: Start difference. First operand 1574 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:08,473 INFO L93 Difference]: Finished difference Result 2924 states and 11659 transitions. [2021-03-11 14:39:08,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:08,473 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:08,479 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:39:08,479 INFO L226 Difference]: Without dead ends: 2902 [2021-03-11 14:39:08,479 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 254.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:08,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2021-03-11 14:39:08,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 1569. [2021-03-11 14:39:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.485969387755102) internal successors, (7034), 1568 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7034 transitions. [2021-03-11 14:39:08,524 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7034 transitions. Word has length 28 [2021-03-11 14:39:08,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:08,524 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7034 transitions. [2021-03-11 14:39:08,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7034 transitions. [2021-03-11 14:39:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:08,526 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:08,526 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:08,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2021-03-11 14:39:08,526 INFO L428 AbstractCegarLoop]: === Iteration 409 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:08,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:08,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1578926492, now seen corresponding path program 401 times [2021-03-11 14:39:08,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:08,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173277494] [2021-03-11 14:39:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:08,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:08,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:08,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:08,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:08,541 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:08,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:08,550 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:08,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:08,563 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:08,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:08,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:08,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:08,603 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:08,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:08,630 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:08,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:08,665 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:08,707 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:08,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:08,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173277494] [2021-03-11 14:39:08,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:08,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:08,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614110375] [2021-03-11 14:39:08,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:08,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:08,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:08,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:08,745 INFO L87 Difference]: Start difference. First operand 1569 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:08,939 INFO L93 Difference]: Finished difference Result 2930 states and 11673 transitions. [2021-03-11 14:39:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:08,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:08,946 INFO L225 Difference]: With dead ends: 2930 [2021-03-11 14:39:08,946 INFO L226 Difference]: Without dead ends: 2912 [2021-03-11 14:39:08,946 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 263.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2021-03-11 14:39:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1576. [2021-03-11 14:39:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.474285714285714) internal successors, (7047), 1575 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7047 transitions. [2021-03-11 14:39:08,992 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7047 transitions. Word has length 28 [2021-03-11 14:39:08,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:08,992 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7047 transitions. [2021-03-11 14:39:08,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7047 transitions. [2021-03-11 14:39:08,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:08,994 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:08,994 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:08,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2021-03-11 14:39:08,994 INFO L428 AbstractCegarLoop]: === Iteration 410 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:08,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:08,994 INFO L82 PathProgramCache]: Analyzing trace with hash 2144585998, now seen corresponding path program 402 times [2021-03-11 14:39:08,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:08,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144247629] [2021-03-11 14:39:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:09,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:09,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:09,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:09,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:09,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:09,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:09,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:09,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:09,031 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:09,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:09,049 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:09,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:09,071 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:09,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:09,099 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:09,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:09,133 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:09,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:09,174 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:09,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:09,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144247629] [2021-03-11 14:39:09,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:09,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:09,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815313144] [2021-03-11 14:39:09,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:09,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:09,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:09,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:09,212 INFO L87 Difference]: Start difference. First operand 1576 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:09,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:09,388 INFO L93 Difference]: Finished difference Result 2929 states and 11664 transitions. [2021-03-11 14:39:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:09,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:09,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:09,394 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:39:09,394 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:39:09,394 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 257.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:39:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1564. [2021-03-11 14:39:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.491362763915547) internal successors, (7020), 1563 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7020 transitions. [2021-03-11 14:39:09,439 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7020 transitions. Word has length 28 [2021-03-11 14:39:09,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:09,439 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7020 transitions. [2021-03-11 14:39:09,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7020 transitions. [2021-03-11 14:39:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:09,442 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:09,442 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:09,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2021-03-11 14:39:09,442 INFO L428 AbstractCegarLoop]: === Iteration 411 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:09,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:09,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1234513136, now seen corresponding path program 403 times [2021-03-11 14:39:09,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:09,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374835332] [2021-03-11 14:39:09,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:09,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:09,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:09,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:09,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:09,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:09,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:09,466 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:09,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:09,480 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:09,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:09,497 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:09,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:09,521 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:09,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:09,549 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:09,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:09,584 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:09,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:09,626 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:09,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:09,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374835332] [2021-03-11 14:39:09,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:09,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:09,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245446601] [2021-03-11 14:39:09,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:09,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:09,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:09,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:09,664 INFO L87 Difference]: Start difference. First operand 1564 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:09,809 INFO L93 Difference]: Finished difference Result 2930 states and 11681 transitions. [2021-03-11 14:39:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:09,810 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:09,815 INFO L225 Difference]: With dead ends: 2930 [2021-03-11 14:39:09,815 INFO L226 Difference]: Without dead ends: 2914 [2021-03-11 14:39:09,815 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:09,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-03-11 14:39:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1576. [2021-03-11 14:39:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.4787301587301585) internal successors, (7054), 1575 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7054 transitions. [2021-03-11 14:39:09,861 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7054 transitions. Word has length 28 [2021-03-11 14:39:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:09,862 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7054 transitions. [2021-03-11 14:39:09,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7054 transitions. [2021-03-11 14:39:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:09,864 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:09,864 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:09,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2021-03-11 14:39:09,864 INFO L428 AbstractCegarLoop]: === Iteration 412 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:09,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:09,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1571049164, now seen corresponding path program 404 times [2021-03-11 14:39:09,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:09,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397133306] [2021-03-11 14:39:09,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:09,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:09,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:09,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:09,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:09,879 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:09,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:09,888 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:09,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:09,911 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:09,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:09,929 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:09,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:09,952 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:09,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:09,981 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:09,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:10,015 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:10,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:10,057 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:10,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397133306] [2021-03-11 14:39:10,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:10,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:10,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417916857] [2021-03-11 14:39:10,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:10,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:10,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:10,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:10,095 INFO L87 Difference]: Start difference. First operand 1576 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:10,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:10,252 INFO L93 Difference]: Finished difference Result 2932 states and 11679 transitions. [2021-03-11 14:39:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:10,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:10,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:10,258 INFO L225 Difference]: With dead ends: 2932 [2021-03-11 14:39:10,258 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:39:10,258 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:10,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:39:10,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1570. [2021-03-11 14:39:10,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.48502230720204) internal successors, (7037), 1569 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:10,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7037 transitions. [2021-03-11 14:39:10,305 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7037 transitions. Word has length 28 [2021-03-11 14:39:10,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:10,305 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7037 transitions. [2021-03-11 14:39:10,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:10,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7037 transitions. [2021-03-11 14:39:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:10,308 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:10,308 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:10,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2021-03-11 14:39:10,308 INFO L428 AbstractCegarLoop]: === Iteration 413 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:10,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:10,308 INFO L82 PathProgramCache]: Analyzing trace with hash 699283334, now seen corresponding path program 405 times [2021-03-11 14:39:10,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:10,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421656941] [2021-03-11 14:39:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:10,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:10,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:10,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:10,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:10,324 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:10,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:10,334 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:10,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:10,348 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:10,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:10,366 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:10,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:10,390 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:10,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:10,421 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:10,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:10,457 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:10,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:10,499 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:10,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:10,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421656941] [2021-03-11 14:39:10,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:10,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:10,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761025925] [2021-03-11 14:39:10,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:10,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:10,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:10,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:10,539 INFO L87 Difference]: Start difference. First operand 1570 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:10,692 INFO L93 Difference]: Finished difference Result 2929 states and 11673 transitions. [2021-03-11 14:39:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:10,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:10,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:10,699 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:39:10,699 INFO L226 Difference]: Without dead ends: 2913 [2021-03-11 14:39:10,699 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-03-11 14:39:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1576. [2021-03-11 14:39:10,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.474920634920635) internal successors, (7048), 1575 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7048 transitions. [2021-03-11 14:39:10,749 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7048 transitions. Word has length 28 [2021-03-11 14:39:10,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:10,749 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7048 transitions. [2021-03-11 14:39:10,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7048 transitions. [2021-03-11 14:39:10,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:10,751 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:10,751 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:10,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2021-03-11 14:39:10,751 INFO L428 AbstractCegarLoop]: === Iteration 414 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:10,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:10,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1617233524, now seen corresponding path program 406 times [2021-03-11 14:39:10,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:10,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916388782] [2021-03-11 14:39:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:10,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:10,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:10,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:10,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:10,767 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:10,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:10,777 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:10,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:10,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:10,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:10,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:10,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:10,834 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:10,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:10,865 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:10,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:10,901 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:10,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:10,944 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:10,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:10,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916388782] [2021-03-11 14:39:10,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:10,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:10,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383211168] [2021-03-11 14:39:10,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:10,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:10,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:10,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:10,984 INFO L87 Difference]: Start difference. First operand 1576 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:11,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:11,144 INFO L93 Difference]: Finished difference Result 2930 states and 11669 transitions. [2021-03-11 14:39:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:11,145 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:11,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:11,151 INFO L225 Difference]: With dead ends: 2930 [2021-03-11 14:39:11,151 INFO L226 Difference]: Without dead ends: 2907 [2021-03-11 14:39:11,151 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 273.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:11,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-03-11 14:39:11,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1570. [2021-03-11 14:39:11,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.481198215423837) internal successors, (7031), 1569 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7031 transitions. [2021-03-11 14:39:11,200 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7031 transitions. Word has length 28 [2021-03-11 14:39:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:11,201 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7031 transitions. [2021-03-11 14:39:11,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7031 transitions. [2021-03-11 14:39:11,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:11,203 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:11,203 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:11,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2021-03-11 14:39:11,203 INFO L428 AbstractCegarLoop]: === Iteration 415 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:11,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:11,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1115602950, now seen corresponding path program 407 times [2021-03-11 14:39:11,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:11,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077972745] [2021-03-11 14:39:11,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:11,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:11,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:11,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:11,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:11,218 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:11,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:11,228 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:11,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:11,242 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:11,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:11,261 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:11,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:11,285 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:11,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:11,315 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:11,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:11,352 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:11,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:11,396 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:11,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:11,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:11,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077972745] [2021-03-11 14:39:11,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:11,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:11,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131854209] [2021-03-11 14:39:11,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:11,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:11,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:11,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:11,437 INFO L87 Difference]: Start difference. First operand 1570 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:11,598 INFO L93 Difference]: Finished difference Result 2934 states and 11678 transitions. [2021-03-11 14:39:11,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:11,599 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:11,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:11,604 INFO L225 Difference]: With dead ends: 2934 [2021-03-11 14:39:11,604 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:39:11,604 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 278.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:39:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1577. [2021-03-11 14:39:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.469543147208122) internal successors, (7044), 1576 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7044 transitions. [2021-03-11 14:39:11,653 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7044 transitions. Word has length 28 [2021-03-11 14:39:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:11,653 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7044 transitions. [2021-03-11 14:39:11,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7044 transitions. [2021-03-11 14:39:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:11,655 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:11,655 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:11,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2021-03-11 14:39:11,655 INFO L428 AbstractCegarLoop]: === Iteration 416 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:11,656 INFO L82 PathProgramCache]: Analyzing trace with hash 544148144, now seen corresponding path program 408 times [2021-03-11 14:39:11,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:11,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999571785] [2021-03-11 14:39:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:11,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:11,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:11,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:11,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:11,672 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:11,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:11,681 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:11,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:11,696 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:11,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:11,714 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:11,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:11,739 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:11,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:11,769 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:11,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:11,806 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:11,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:11,849 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:11,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:11,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999571785] [2021-03-11 14:39:11,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:11,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:11,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707193623] [2021-03-11 14:39:11,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:11,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:11,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:11,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:11,889 INFO L87 Difference]: Start difference. First operand 1577 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:12,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:12,072 INFO L93 Difference]: Finished difference Result 2933 states and 11669 transitions. [2021-03-11 14:39:12,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:12,073 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:12,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:12,079 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:39:12,079 INFO L226 Difference]: Without dead ends: 2898 [2021-03-11 14:39:12,079 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 272.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-03-11 14:39:12,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 1559. [2021-03-11 14:39:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 4.497432605905006) internal successors, (7007), 1558 states have internal predecessors, (7007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 7007 transitions. [2021-03-11 14:39:12,126 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 7007 transitions. Word has length 28 [2021-03-11 14:39:12,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:12,126 INFO L480 AbstractCegarLoop]: Abstraction has 1559 states and 7007 transitions. [2021-03-11 14:39:12,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:12,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 7007 transitions. [2021-03-11 14:39:12,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:12,129 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:12,129 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:12,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2021-03-11 14:39:12,129 INFO L428 AbstractCegarLoop]: === Iteration 417 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:12,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:12,129 INFO L82 PathProgramCache]: Analyzing trace with hash 847344676, now seen corresponding path program 409 times [2021-03-11 14:39:12,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:12,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870751035] [2021-03-11 14:39:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:12,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:12,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:12,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:12,144 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:12,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:12,154 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:12,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:12,168 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:12,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:12,187 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:12,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:12,211 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:12,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:12,240 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:12,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:12,276 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:12,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:12,319 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:12,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:12,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870751035] [2021-03-11 14:39:12,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:12,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:12,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622913263] [2021-03-11 14:39:12,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:12,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:12,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:12,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:12,359 INFO L87 Difference]: Start difference. First operand 1559 states and 7007 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:12,540 INFO L93 Difference]: Finished difference Result 2896 states and 11596 transitions. [2021-03-11 14:39:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:12,541 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:12,546 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:39:12,546 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:39:12,547 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:39:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1572. [2021-03-11 14:39:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.487587523870147) internal successors, (7050), 1571 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7050 transitions. [2021-03-11 14:39:12,595 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7050 transitions. Word has length 28 [2021-03-11 14:39:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:12,595 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7050 transitions. [2021-03-11 14:39:12,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:12,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7050 transitions. [2021-03-11 14:39:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:12,597 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:12,597 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:12,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2021-03-11 14:39:12,597 INFO L428 AbstractCegarLoop]: === Iteration 418 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:12,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1592047174, now seen corresponding path program 410 times [2021-03-11 14:39:12,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:12,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470430274] [2021-03-11 14:39:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:12,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:12,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:12,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:12,613 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:12,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:12,622 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:12,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:12,640 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:12,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:12,658 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:12,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:12,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:12,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:12,709 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:12,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:12,743 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:12,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:12,784 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:12,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:12,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470430274] [2021-03-11 14:39:12,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:12,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:12,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548706254] [2021-03-11 14:39:12,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:12,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:12,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:12,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:12,823 INFO L87 Difference]: Start difference. First operand 1572 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:12,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:12,979 INFO L93 Difference]: Finished difference Result 2897 states and 11593 transitions. [2021-03-11 14:39:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:12,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:12,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:12,985 INFO L225 Difference]: With dead ends: 2897 [2021-03-11 14:39:12,986 INFO L226 Difference]: Without dead ends: 2876 [2021-03-11 14:39:12,986 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 264.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:13,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2021-03-11 14:39:13,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 1567. [2021-03-11 14:39:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.493614303959132) internal successors, (7037), 1566 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7037 transitions. [2021-03-11 14:39:13,033 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7037 transitions. Word has length 28 [2021-03-11 14:39:13,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:13,034 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7037 transitions. [2021-03-11 14:39:13,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7037 transitions. [2021-03-11 14:39:13,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:13,036 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:13,036 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:13,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2021-03-11 14:39:13,036 INFO L428 AbstractCegarLoop]: === Iteration 419 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:13,036 INFO L82 PathProgramCache]: Analyzing trace with hash 312114874, now seen corresponding path program 411 times [2021-03-11 14:39:13,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:13,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562297785] [2021-03-11 14:39:13,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:13,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:13,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:13,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:13,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:13,051 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:13,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:13,060 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:13,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:13,074 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:13,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:13,092 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:13,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:13,115 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:13,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:13,144 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:13,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:13,179 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:13,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:13,221 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:13,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:13,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562297785] [2021-03-11 14:39:13,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:13,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:13,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943590298] [2021-03-11 14:39:13,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:13,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:13,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:13,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:13,260 INFO L87 Difference]: Start difference. First operand 1567 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:13,423 INFO L93 Difference]: Finished difference Result 2893 states and 11585 transitions. [2021-03-11 14:39:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:13,424 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:13,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:13,430 INFO L225 Difference]: With dead ends: 2893 [2021-03-11 14:39:13,430 INFO L226 Difference]: Without dead ends: 2878 [2021-03-11 14:39:13,430 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 264.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:13,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-11 14:39:13,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 1571. [2021-03-11 14:39:13,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.486624203821656) internal successors, (7044), 1570 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7044 transitions. [2021-03-11 14:39:13,477 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7044 transitions. Word has length 28 [2021-03-11 14:39:13,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:13,477 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7044 transitions. [2021-03-11 14:39:13,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7044 transitions. [2021-03-11 14:39:13,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:13,479 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:13,479 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:13,479 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2021-03-11 14:39:13,479 INFO L428 AbstractCegarLoop]: === Iteration 420 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:13,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:13,479 INFO L82 PathProgramCache]: Analyzing trace with hash 485362566, now seen corresponding path program 412 times [2021-03-11 14:39:13,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:13,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369330104] [2021-03-11 14:39:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:13,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:13,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:13,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:13,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:13,496 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:13,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:13,505 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:13,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:13,519 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:13,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:13,537 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:13,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:13,560 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:13,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:13,588 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:13,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:13,622 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:13,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:13,663 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:13,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:13,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369330104] [2021-03-11 14:39:13,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:13,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:13,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152360826] [2021-03-11 14:39:13,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:13,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:13,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:13,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:13,702 INFO L87 Difference]: Start difference. First operand 1571 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:13,868 INFO L93 Difference]: Finished difference Result 2892 states and 11579 transitions. [2021-03-11 14:39:13,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:13,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:13,874 INFO L225 Difference]: With dead ends: 2892 [2021-03-11 14:39:13,874 INFO L226 Difference]: Without dead ends: 2874 [2021-03-11 14:39:13,874 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 260.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2021-03-11 14:39:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 1567. [2021-03-11 14:39:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.491060025542784) internal successors, (7033), 1566 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7033 transitions. [2021-03-11 14:39:13,919 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7033 transitions. Word has length 28 [2021-03-11 14:39:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:13,920 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7033 transitions. [2021-03-11 14:39:13,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:13,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7033 transitions. [2021-03-11 14:39:13,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:13,922 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:13,922 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:13,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2021-03-11 14:39:13,922 INFO L428 AbstractCegarLoop]: === Iteration 421 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:13,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:13,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1627208966, now seen corresponding path program 413 times [2021-03-11 14:39:13,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:13,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616211355] [2021-03-11 14:39:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:13,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:13,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:13,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:13,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:13,946 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:13,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:13,960 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:13,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:13,978 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:13,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:14,002 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:14,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:14,030 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:14,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:14,065 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:14,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:14,106 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:14,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:14,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616211355] [2021-03-11 14:39:14,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:14,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:14,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436805676] [2021-03-11 14:39:14,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:14,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:14,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:14,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:14,145 INFO L87 Difference]: Start difference. First operand 1567 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:14,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:14,289 INFO L93 Difference]: Finished difference Result 2895 states and 11585 transitions. [2021-03-11 14:39:14,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:14,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:14,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:14,295 INFO L225 Difference]: With dead ends: 2895 [2021-03-11 14:39:14,295 INFO L226 Difference]: Without dead ends: 2879 [2021-03-11 14:39:14,295 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 262.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-03-11 14:39:14,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1571. [2021-03-11 14:39:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484076433121019) internal successors, (7040), 1570 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7040 transitions. [2021-03-11 14:39:14,340 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7040 transitions. Word has length 28 [2021-03-11 14:39:14,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:14,340 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7040 transitions. [2021-03-11 14:39:14,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:14,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7040 transitions. [2021-03-11 14:39:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:14,342 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:14,342 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:14,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2021-03-11 14:39:14,342 INFO L428 AbstractCegarLoop]: === Iteration 422 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:14,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:14,343 INFO L82 PathProgramCache]: Analyzing trace with hash 2096303524, now seen corresponding path program 414 times [2021-03-11 14:39:14,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:14,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904195308] [2021-03-11 14:39:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:14,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:14,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:14,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:14,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:14,358 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:14,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:14,367 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:14,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:14,381 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:14,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:14,399 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:14,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:14,422 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:14,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:14,451 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:14,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:14,485 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:14,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:14,528 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:14,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:14,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904195308] [2021-03-11 14:39:14,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:14,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:14,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851318327] [2021-03-11 14:39:14,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:14,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:14,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:14,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:14,567 INFO L87 Difference]: Start difference. First operand 1571 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:14,722 INFO L93 Difference]: Finished difference Result 2893 states and 11577 transitions. [2021-03-11 14:39:14,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:14,722 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:14,728 INFO L225 Difference]: With dead ends: 2893 [2021-03-11 14:39:14,728 INFO L226 Difference]: Without dead ends: 2871 [2021-03-11 14:39:14,728 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 265.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:14,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-03-11 14:39:14,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1563. [2021-03-11 14:39:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.495518565941101) internal successors, (7022), 1562 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7022 transitions. [2021-03-11 14:39:14,774 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7022 transitions. Word has length 28 [2021-03-11 14:39:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:14,774 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7022 transitions. [2021-03-11 14:39:14,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7022 transitions. [2021-03-11 14:39:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:14,776 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:14,776 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:14,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2021-03-11 14:39:14,776 INFO L428 AbstractCegarLoop]: === Iteration 423 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:14,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1941436264, now seen corresponding path program 415 times [2021-03-11 14:39:14,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:14,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622208215] [2021-03-11 14:39:14,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:14,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:14,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:14,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:14,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:14,791 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:14,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:14,801 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:14,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:14,815 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:14,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:14,833 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:14,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:14,856 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:14,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:14,886 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:14,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:14,921 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:14,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:14,964 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:14,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:15,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622208215] [2021-03-11 14:39:15,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:15,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:15,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61949269] [2021-03-11 14:39:15,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:15,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:15,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:15,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:15,004 INFO L87 Difference]: Start difference. First operand 1563 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:15,162 INFO L93 Difference]: Finished difference Result 2903 states and 11611 transitions. [2021-03-11 14:39:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:15,168 INFO L225 Difference]: With dead ends: 2903 [2021-03-11 14:39:15,168 INFO L226 Difference]: Without dead ends: 2888 [2021-03-11 14:39:15,168 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 270.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-03-11 14:39:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1573. [2021-03-11 14:39:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.484732824427481) internal successors, (7050), 1572 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7050 transitions. [2021-03-11 14:39:15,215 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7050 transitions. Word has length 28 [2021-03-11 14:39:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:15,215 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7050 transitions. [2021-03-11 14:39:15,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7050 transitions. [2021-03-11 14:39:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:15,217 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:15,217 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:15,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2021-03-11 14:39:15,217 INFO L428 AbstractCegarLoop]: === Iteration 424 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:15,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:15,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1608828534, now seen corresponding path program 416 times [2021-03-11 14:39:15,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:15,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571343614] [2021-03-11 14:39:15,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:15,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:15,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:15,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:15,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:15,232 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:15,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:15,242 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:15,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:15,256 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:15,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:15,274 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:15,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:15,297 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:15,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:15,326 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:15,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:15,361 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:15,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:15,403 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:15,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:15,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571343614] [2021-03-11 14:39:15,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:15,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:15,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933622122] [2021-03-11 14:39:15,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:15,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:15,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:15,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:15,443 INFO L87 Difference]: Start difference. First operand 1573 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:15,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:15,597 INFO L93 Difference]: Finished difference Result 2904 states and 11608 transitions. [2021-03-11 14:39:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:15,598 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:15,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:15,603 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:15,603 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:39:15,603 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 267.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:15,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:39:15,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1568. [2021-03-11 14:39:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.4901084875558395) internal successors, (7036), 1567 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7036 transitions. [2021-03-11 14:39:15,650 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7036 transitions. Word has length 28 [2021-03-11 14:39:15,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:15,650 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7036 transitions. [2021-03-11 14:39:15,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:15,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7036 transitions. [2021-03-11 14:39:15,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:15,652 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:15,652 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:15,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2021-03-11 14:39:15,652 INFO L428 AbstractCegarLoop]: === Iteration 425 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:15,652 INFO L82 PathProgramCache]: Analyzing trace with hash 333121082, now seen corresponding path program 417 times [2021-03-11 14:39:15,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:15,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195029309] [2021-03-11 14:39:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:15,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:15,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:15,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:15,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:15,668 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:15,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:15,677 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:15,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:15,691 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:15,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:15,710 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:15,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:15,733 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:15,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:15,763 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:15,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:15,797 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:15,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:15,840 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:15,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:15,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195029309] [2021-03-11 14:39:15,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:15,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:15,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970097240] [2021-03-11 14:39:15,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:15,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:15,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:15,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:15,880 INFO L87 Difference]: Start difference. First operand 1568 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:16,033 INFO L93 Difference]: Finished difference Result 2904 states and 11608 transitions. [2021-03-11 14:39:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:16,039 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:16,039 INFO L226 Difference]: Without dead ends: 2889 [2021-03-11 14:39:16,039 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:16,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2021-03-11 14:39:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 1573. [2021-03-11 14:39:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.481552162849873) internal successors, (7045), 1572 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7045 transitions. [2021-03-11 14:39:16,086 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7045 transitions. Word has length 28 [2021-03-11 14:39:16,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:16,086 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7045 transitions. [2021-03-11 14:39:16,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7045 transitions. [2021-03-11 14:39:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:16,088 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:16,088 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:16,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2021-03-11 14:39:16,088 INFO L428 AbstractCegarLoop]: === Iteration 426 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:16,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:16,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1995773770, now seen corresponding path program 418 times [2021-03-11 14:39:16,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:16,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141581739] [2021-03-11 14:39:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:16,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:16,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:16,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:16,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:16,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:16,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:16,114 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:16,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:16,128 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:16,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:16,148 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:16,172 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:16,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:16,202 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:16,238 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:16,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:16,281 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:16,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:16,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:16,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141581739] [2021-03-11 14:39:16,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:16,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:16,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257709942] [2021-03-11 14:39:16,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:16,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:16,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:16,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:16,321 INFO L87 Difference]: Start difference. First operand 1573 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:16,477 INFO L93 Difference]: Finished difference Result 2906 states and 11607 transitions. [2021-03-11 14:39:16,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:16,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:16,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:16,483 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:39:16,483 INFO L226 Difference]: Without dead ends: 2884 [2021-03-11 14:39:16,483 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 273.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-03-11 14:39:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1568. [2021-03-11 14:39:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.486917677089981) internal successors, (7031), 1567 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7031 transitions. [2021-03-11 14:39:16,529 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7031 transitions. Word has length 28 [2021-03-11 14:39:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:16,529 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7031 transitions. [2021-03-11 14:39:16,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7031 transitions. [2021-03-11 14:39:16,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:16,531 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:16,531 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:16,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2021-03-11 14:39:16,531 INFO L428 AbstractCegarLoop]: === Iteration 427 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:16,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1606202758, now seen corresponding path program 419 times [2021-03-11 14:39:16,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:16,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816569180] [2021-03-11 14:39:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:16,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:16,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:16,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:16,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:16,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:16,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:16,557 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:16,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:16,571 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:16,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:16,589 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:16,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:16,613 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:16,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:16,643 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:16,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:16,679 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:16,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:16,721 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:16,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:16,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816569180] [2021-03-11 14:39:16,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:16,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:16,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868677695] [2021-03-11 14:39:16,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:16,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:16,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:16,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:16,762 INFO L87 Difference]: Start difference. First operand 1568 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:16,938 INFO L93 Difference]: Finished difference Result 2907 states and 11610 transitions. [2021-03-11 14:39:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:16,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:16,944 INFO L225 Difference]: With dead ends: 2907 [2021-03-11 14:39:16,944 INFO L226 Difference]: Without dead ends: 2891 [2021-03-11 14:39:16,944 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:16,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2021-03-11 14:39:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1574. [2021-03-11 14:39:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.476795931341386) internal successors, (7042), 1573 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7042 transitions. [2021-03-11 14:39:16,990 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7042 transitions. Word has length 28 [2021-03-11 14:39:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:16,990 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7042 transitions. [2021-03-11 14:39:16,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:16,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7042 transitions. [2021-03-11 14:39:16,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:16,992 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:16,992 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:16,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2021-03-11 14:39:16,992 INFO L428 AbstractCegarLoop]: === Iteration 428 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:16,992 INFO L82 PathProgramCache]: Analyzing trace with hash -688252568, now seen corresponding path program 420 times [2021-03-11 14:39:16,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:16,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738221381] [2021-03-11 14:39:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:17,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:17,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:17,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:17,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:17,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:17,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:17,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:17,032 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:17,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:17,050 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:17,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:17,074 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:17,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:17,105 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:17,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:17,142 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:17,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:17,185 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:17,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:17,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:17,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738221381] [2021-03-11 14:39:17,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:17,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:17,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382414712] [2021-03-11 14:39:17,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:17,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:17,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:17,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:17,225 INFO L87 Difference]: Start difference. First operand 1574 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:17,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:17,395 INFO L93 Difference]: Finished difference Result 2908 states and 11606 transitions. [2021-03-11 14:39:17,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:17,395 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:17,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:17,401 INFO L225 Difference]: With dead ends: 2908 [2021-03-11 14:39:17,401 INFO L226 Difference]: Without dead ends: 2880 [2021-03-11 14:39:17,401 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 273.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:17,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2021-03-11 14:39:17,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 1563. [2021-03-11 14:39:17,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.492957746478873) internal successors, (7018), 1562 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7018 transitions. [2021-03-11 14:39:17,448 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7018 transitions. Word has length 28 [2021-03-11 14:39:17,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:17,448 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7018 transitions. [2021-03-11 14:39:17,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7018 transitions. [2021-03-11 14:39:17,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:17,450 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:17,450 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:17,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2021-03-11 14:39:17,450 INFO L428 AbstractCegarLoop]: === Iteration 429 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:17,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:17,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1993951784, now seen corresponding path program 421 times [2021-03-11 14:39:17,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:17,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824492881] [2021-03-11 14:39:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:17,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:17,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:17,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:17,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:17,466 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:17,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:17,476 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:17,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:17,490 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:17,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:17,508 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:17,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:17,532 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:17,561 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:17,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:17,597 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:17,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:17,640 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:17,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:17,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824492881] [2021-03-11 14:39:17,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:17,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:17,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185963158] [2021-03-11 14:39:17,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:17,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:17,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:17,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:17,680 INFO L87 Difference]: Start difference. First operand 1563 states and 7018 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:17,847 INFO L93 Difference]: Finished difference Result 2894 states and 11583 transitions. [2021-03-11 14:39:17,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:17,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:17,853 INFO L225 Difference]: With dead ends: 2894 [2021-03-11 14:39:17,853 INFO L226 Difference]: Without dead ends: 2879 [2021-03-11 14:39:17,853 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-03-11 14:39:17,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1571. [2021-03-11 14:39:17,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484076433121019) internal successors, (7040), 1570 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7040 transitions. [2021-03-11 14:39:17,898 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7040 transitions. Word has length 28 [2021-03-11 14:39:17,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:17,898 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7040 transitions. [2021-03-11 14:39:17,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:17,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7040 transitions. [2021-03-11 14:39:17,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:17,900 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:17,900 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:17,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2021-03-11 14:39:17,900 INFO L428 AbstractCegarLoop]: === Iteration 430 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:17,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:17,901 INFO L82 PathProgramCache]: Analyzing trace with hash -2127767820, now seen corresponding path program 422 times [2021-03-11 14:39:17,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:17,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938387856] [2021-03-11 14:39:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:17,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:17,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:17,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:17,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:17,915 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:17,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:17,925 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:17,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:17,939 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:17,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:17,958 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:17,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:17,983 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:17,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:18,013 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:18,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:18,049 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:18,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:18,093 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:18,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:18,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938387856] [2021-03-11 14:39:18,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:18,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:18,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47256710] [2021-03-11 14:39:18,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:18,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:18,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:18,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:18,134 INFO L87 Difference]: Start difference. First operand 1571 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:18,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:18,301 INFO L93 Difference]: Finished difference Result 2893 states and 11577 transitions. [2021-03-11 14:39:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:18,302 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:18,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:18,308 INFO L225 Difference]: With dead ends: 2893 [2021-03-11 14:39:18,308 INFO L226 Difference]: Without dead ends: 2875 [2021-03-11 14:39:18,308 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 274.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:18,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2021-03-11 14:39:18,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1567. [2021-03-11 14:39:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.488505747126437) internal successors, (7029), 1566 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7029 transitions. [2021-03-11 14:39:18,354 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7029 transitions. Word has length 28 [2021-03-11 14:39:18,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:18,354 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7029 transitions. [2021-03-11 14:39:18,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:18,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7029 transitions. [2021-03-11 14:39:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:18,356 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:18,356 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:18,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2021-03-11 14:39:18,356 INFO L428 AbstractCegarLoop]: === Iteration 431 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:18,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:18,356 INFO L82 PathProgramCache]: Analyzing trace with hash 920866404, now seen corresponding path program 423 times [2021-03-11 14:39:18,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:18,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706031681] [2021-03-11 14:39:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:18,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:18,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:18,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:18,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:18,371 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:18,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:18,381 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:18,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:18,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:18,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:18,414 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:18,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:18,437 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:18,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:18,466 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:18,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:18,501 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:18,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:18,544 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:18,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:18,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706031681] [2021-03-11 14:39:18,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:18,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:18,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421032609] [2021-03-11 14:39:18,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:18,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:18,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:18,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:18,584 INFO L87 Difference]: Start difference. First operand 1567 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:18,753 INFO L93 Difference]: Finished difference Result 2898 states and 11588 transitions. [2021-03-11 14:39:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:18,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:18,760 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:39:18,760 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:39:18,760 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 270.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:39:18,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1572. [2021-03-11 14:39:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.479949077021006) internal successors, (7038), 1571 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7038 transitions. [2021-03-11 14:39:18,806 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7038 transitions. Word has length 28 [2021-03-11 14:39:18,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:18,806 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7038 transitions. [2021-03-11 14:39:18,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7038 transitions. [2021-03-11 14:39:18,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:18,809 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:18,809 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:18,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2021-03-11 14:39:18,809 INFO L428 AbstractCegarLoop]: === Iteration 432 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:18,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:18,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1711448204, now seen corresponding path program 424 times [2021-03-11 14:39:18,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:18,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535252203] [2021-03-11 14:39:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:18,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:18,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:18,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:18,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:18,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:18,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:18,835 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:18,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:18,849 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:18,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:18,868 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:18,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:18,892 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:18,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:18,920 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:18,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:18,956 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:18,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:18,998 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:18,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:19,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535252203] [2021-03-11 14:39:19,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:19,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:19,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878007267] [2021-03-11 14:39:19,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:19,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:19,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:19,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:19,038 INFO L87 Difference]: Start difference. First operand 1572 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:19,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:19,210 INFO L93 Difference]: Finished difference Result 2900 states and 11587 transitions. [2021-03-11 14:39:19,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:19,211 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:19,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:19,216 INFO L225 Difference]: With dead ends: 2900 [2021-03-11 14:39:19,216 INFO L226 Difference]: Without dead ends: 2878 [2021-03-11 14:39:19,216 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 269.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-11 14:39:19,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 1567. [2021-03-11 14:39:19,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.485951468710089) internal successors, (7025), 1566 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7025 transitions. [2021-03-11 14:39:19,262 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7025 transitions. Word has length 28 [2021-03-11 14:39:19,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:19,262 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7025 transitions. [2021-03-11 14:39:19,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:19,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7025 transitions. [2021-03-11 14:39:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:19,264 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:19,264 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:19,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2021-03-11 14:39:19,264 INFO L428 AbstractCegarLoop]: === Iteration 433 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:19,264 INFO L82 PathProgramCache]: Analyzing trace with hash -2125142044, now seen corresponding path program 425 times [2021-03-11 14:39:19,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:19,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045228677] [2021-03-11 14:39:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:19,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:19,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:19,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:19,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:19,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:19,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:19,289 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:19,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:19,304 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:19,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:19,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:19,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:19,346 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:19,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:19,375 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:19,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:19,432 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:19,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:19,475 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:19,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:19,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045228677] [2021-03-11 14:39:19,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:19,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:19,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881194408] [2021-03-11 14:39:19,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:19,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:19,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:19,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:19,515 INFO L87 Difference]: Start difference. First operand 1567 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:19,698 INFO L93 Difference]: Finished difference Result 2895 states and 11577 transitions. [2021-03-11 14:39:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:19,699 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:19,704 INFO L225 Difference]: With dead ends: 2895 [2021-03-11 14:39:19,704 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:39:19,704 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 292.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:19,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:39:19,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1571. [2021-03-11 14:39:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.478980891719745) internal successors, (7032), 1570 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7032 transitions. [2021-03-11 14:39:19,751 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7032 transitions. Word has length 28 [2021-03-11 14:39:19,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:19,751 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7032 transitions. [2021-03-11 14:39:19,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:19,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7032 transitions. [2021-03-11 14:39:19,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:19,753 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:19,753 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:19,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2021-03-11 14:39:19,753 INFO L428 AbstractCegarLoop]: === Iteration 434 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:19,754 INFO L82 PathProgramCache]: Analyzing trace with hash -635737048, now seen corresponding path program 426 times [2021-03-11 14:39:19,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:19,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287452973] [2021-03-11 14:39:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:19,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:19,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:19,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:19,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:19,769 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:19,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:19,779 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:19,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:19,794 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:19,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:19,813 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:19,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:19,837 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:19,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:19,867 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:19,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:19,925 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:19,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:19,968 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:19,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:20,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:20,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287452973] [2021-03-11 14:39:20,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:20,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:20,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273105877] [2021-03-11 14:39:20,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:20,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:20,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:20,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:20,009 INFO L87 Difference]: Start difference. First operand 1571 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:20,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:20,182 INFO L93 Difference]: Finished difference Result 2898 states and 11579 transitions. [2021-03-11 14:39:20,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:20,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:20,189 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:39:20,189 INFO L226 Difference]: Without dead ends: 2873 [2021-03-11 14:39:20,189 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 296.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2021-03-11 14:39:20,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 1563. [2021-03-11 14:39:20,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.490396927016645) internal successors, (7014), 1562 states have internal predecessors, (7014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7014 transitions. [2021-03-11 14:39:20,235 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7014 transitions. Word has length 28 [2021-03-11 14:39:20,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:20,235 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7014 transitions. [2021-03-11 14:39:20,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7014 transitions. [2021-03-11 14:39:20,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:20,237 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:20,237 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:20,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2021-03-11 14:39:20,238 INFO L428 AbstractCegarLoop]: === Iteration 435 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:20,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:20,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1545809910, now seen corresponding path program 427 times [2021-03-11 14:39:20,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:20,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483663987] [2021-03-11 14:39:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:20,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:20,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:20,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:20,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:20,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:20,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:20,263 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:20,277 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:20,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:20,296 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:20,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:20,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:20,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:20,350 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:20,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:20,386 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:20,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:20,430 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:20,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:20,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483663987] [2021-03-11 14:39:20,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:20,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:20,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843715609] [2021-03-11 14:39:20,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:20,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:20,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:20,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:20,471 INFO L87 Difference]: Start difference. First operand 1563 states and 7014 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:20,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:20,633 INFO L93 Difference]: Finished difference Result 2898 states and 11588 transitions. [2021-03-11 14:39:20,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:20,634 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:20,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:20,640 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:39:20,640 INFO L226 Difference]: Without dead ends: 2882 [2021-03-11 14:39:20,640 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-03-11 14:39:20,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1571. [2021-03-11 14:39:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4815286624203825) internal successors, (7036), 1570 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7036 transitions. [2021-03-11 14:39:20,686 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7036 transitions. Word has length 28 [2021-03-11 14:39:20,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:20,686 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7036 transitions. [2021-03-11 14:39:20,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7036 transitions. [2021-03-11 14:39:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:20,688 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:20,688 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:20,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2021-03-11 14:39:20,688 INFO L428 AbstractCegarLoop]: === Iteration 436 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:20,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:20,688 INFO L82 PathProgramCache]: Analyzing trace with hash -2117264716, now seen corresponding path program 428 times [2021-03-11 14:39:20,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:20,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028433236] [2021-03-11 14:39:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:20,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:20,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:20,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:20,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:20,704 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:20,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:20,713 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:20,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:20,727 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:20,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:20,746 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:20,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:20,770 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:20,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:20,799 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:20,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:20,837 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:20,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:20,880 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:20,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:20,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028433236] [2021-03-11 14:39:20,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:20,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:20,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015108854] [2021-03-11 14:39:20,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:20,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:20,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:20,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:20,921 INFO L87 Difference]: Start difference. First operand 1571 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:21,124 INFO L93 Difference]: Finished difference Result 2896 states and 11580 transitions. [2021-03-11 14:39:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:21,130 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:39:21,130 INFO L226 Difference]: Without dead ends: 2878 [2021-03-11 14:39:21,130 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 274.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-11 14:39:21,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 1567. [2021-03-11 14:39:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.485951468710089) internal successors, (7025), 1566 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:21,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7025 transitions. [2021-03-11 14:39:21,176 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7025 transitions. Word has length 28 [2021-03-11 14:39:21,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:21,176 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7025 transitions. [2021-03-11 14:39:21,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:21,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7025 transitions. [2021-03-11 14:39:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:21,178 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:21,178 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:21,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2021-03-11 14:39:21,178 INFO L428 AbstractCegarLoop]: === Iteration 437 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:21,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1676072006, now seen corresponding path program 429 times [2021-03-11 14:39:21,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:21,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783423152] [2021-03-11 14:39:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:21,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:21,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:21,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:21,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:21,193 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:21,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:21,203 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:21,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:21,218 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:21,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:21,237 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:21,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:21,261 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:21,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:21,290 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:21,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:21,327 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:21,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:21,370 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:21,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:21,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783423152] [2021-03-11 14:39:21,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:21,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:21,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357165410] [2021-03-11 14:39:21,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:21,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:21,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:21,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:21,411 INFO L87 Difference]: Start difference. First operand 1567 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:21,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:21,574 INFO L93 Difference]: Finished difference Result 2903 states and 11596 transitions. [2021-03-11 14:39:21,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:21,575 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:21,580 INFO L225 Difference]: With dead ends: 2903 [2021-03-11 14:39:21,580 INFO L226 Difference]: Without dead ends: 2887 [2021-03-11 14:39:21,580 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:21,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2021-03-11 14:39:21,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1573. [2021-03-11 14:39:21,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.475826972010178) internal successors, (7036), 1572 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7036 transitions. [2021-03-11 14:39:21,627 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7036 transitions. Word has length 28 [2021-03-11 14:39:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:21,627 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7036 transitions. [2021-03-11 14:39:21,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:21,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7036 transitions. [2021-03-11 14:39:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:21,629 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:21,629 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:21,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2021-03-11 14:39:21,629 INFO L428 AbstractCegarLoop]: === Iteration 438 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:21,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:21,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1700945100, now seen corresponding path program 430 times [2021-03-11 14:39:21,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:21,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553557736] [2021-03-11 14:39:21,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:21,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:21,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:21,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:21,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:21,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:21,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:21,655 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:21,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:21,669 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:21,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:21,688 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:21,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:21,713 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:21,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:21,742 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:21,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:21,779 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:21,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:21,822 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:21,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:21,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:21,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553557736] [2021-03-11 14:39:21,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:21,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:21,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376041862] [2021-03-11 14:39:21,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:21,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:21,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:21,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:21,862 INFO L87 Difference]: Start difference. First operand 1573 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:22,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:22,028 INFO L93 Difference]: Finished difference Result 2904 states and 11592 transitions. [2021-03-11 14:39:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:22,028 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:22,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:22,034 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:22,034 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:39:22,034 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:39:22,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1567. [2021-03-11 14:39:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.483397190293742) internal successors, (7021), 1566 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7021 transitions. [2021-03-11 14:39:22,080 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7021 transitions. Word has length 28 [2021-03-11 14:39:22,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:22,080 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7021 transitions. [2021-03-11 14:39:22,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:22,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7021 transitions. [2021-03-11 14:39:22,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:22,082 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:22,082 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:22,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2021-03-11 14:39:22,082 INFO L428 AbstractCegarLoop]: === Iteration 439 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:22,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:22,082 INFO L82 PathProgramCache]: Analyzing trace with hash 569387398, now seen corresponding path program 431 times [2021-03-11 14:39:22,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:22,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518568625] [2021-03-11 14:39:22,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:22,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:22,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:22,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:22,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:22,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:22,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:22,108 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:22,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:22,123 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:22,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:22,143 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:22,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:22,169 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:22,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:22,200 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:22,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:22,262 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:22,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:22,307 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:22,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:22,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518568625] [2021-03-11 14:39:22,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:22,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:22,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494115561] [2021-03-11 14:39:22,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:22,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:22,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:22,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:22,350 INFO L87 Difference]: Start difference. First operand 1567 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:22,524 INFO L93 Difference]: Finished difference Result 2897 states and 11578 transitions. [2021-03-11 14:39:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:22,525 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:22,531 INFO L225 Difference]: With dead ends: 2897 [2021-03-11 14:39:22,531 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:39:22,532 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 313.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:39:22,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1571. [2021-03-11 14:39:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.476433121019109) internal successors, (7028), 1570 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7028 transitions. [2021-03-11 14:39:22,581 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7028 transitions. Word has length 28 [2021-03-11 14:39:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:22,581 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7028 transitions. [2021-03-11 14:39:22,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7028 transitions. [2021-03-11 14:39:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:22,583 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:22,583 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:22,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2021-03-11 14:39:22,583 INFO L428 AbstractCegarLoop]: === Iteration 440 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:22,583 INFO L82 PathProgramCache]: Analyzing trace with hash 2058792394, now seen corresponding path program 432 times [2021-03-11 14:39:22,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:22,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246343338] [2021-03-11 14:39:22,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:22,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:22,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:22,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:22,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:22,599 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:22,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:22,610 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:22,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:22,626 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:22,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:22,647 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:39:22,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:39:22,674 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:22,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:22,705 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:22,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:22,769 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:22,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:22,816 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:22,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:22,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246343338] [2021-03-11 14:39:22,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:22,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:22,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652503173] [2021-03-11 14:39:22,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:22,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:22,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:22,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:22,859 INFO L87 Difference]: Start difference. First operand 1571 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:23,046 INFO L93 Difference]: Finished difference Result 2900 states and 11580 transitions. [2021-03-11 14:39:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:23,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:23,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:23,053 INFO L225 Difference]: With dead ends: 2900 [2021-03-11 14:39:23,053 INFO L226 Difference]: Without dead ends: 2871 [2021-03-11 14:39:23,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 320.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:23,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-03-11 14:39:23,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1559. [2021-03-11 14:39:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 4.494865211810013) internal successors, (7003), 1558 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 7003 transitions. [2021-03-11 14:39:23,102 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 7003 transitions. Word has length 28 [2021-03-11 14:39:23,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:23,102 INFO L480 AbstractCegarLoop]: Abstraction has 1559 states and 7003 transitions. [2021-03-11 14:39:23,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 7003 transitions. [2021-03-11 14:39:23,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:23,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:23,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:23,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2021-03-11 14:39:23,104 INFO L428 AbstractCegarLoop]: === Iteration 441 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:23,104 INFO L82 PathProgramCache]: Analyzing trace with hash 425451744, now seen corresponding path program 433 times [2021-03-11 14:39:23,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:23,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117155532] [2021-03-11 14:39:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:23,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:23,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:23,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:23,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:23,120 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:23,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:23,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:23,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:23,147 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:23,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:23,168 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:23,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:23,194 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:23,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:23,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:23,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:23,311 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:23,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:23,357 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:23,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:23,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117155532] [2021-03-11 14:39:23,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:23,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:23,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650217349] [2021-03-11 14:39:23,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:23,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:23,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:23,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:23,400 INFO L87 Difference]: Start difference. First operand 1559 states and 7003 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:23,578 INFO L93 Difference]: Finished difference Result 2903 states and 11607 transitions. [2021-03-11 14:39:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:23,579 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:23,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:23,584 INFO L225 Difference]: With dead ends: 2903 [2021-03-11 14:39:23,585 INFO L226 Difference]: Without dead ends: 2888 [2021-03-11 14:39:23,585 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 336.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-03-11 14:39:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1572. [2021-03-11 14:39:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.485041374920433) internal successors, (7046), 1571 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7046 transitions. [2021-03-11 14:39:23,630 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7046 transitions. Word has length 28 [2021-03-11 14:39:23,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:23,630 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7046 transitions. [2021-03-11 14:39:23,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:23,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7046 transitions. [2021-03-11 14:39:23,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:23,633 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:23,633 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:23,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2021-03-11 14:39:23,633 INFO L428 AbstractCegarLoop]: === Iteration 442 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:23,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:23,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1635408058, now seen corresponding path program 434 times [2021-03-11 14:39:23,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:23,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695617352] [2021-03-11 14:39:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:23,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:23,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:23,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:23,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:23,650 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:23,660 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:23,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:23,675 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:23,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:23,695 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:23,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:23,719 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:23,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:23,769 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:23,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:23,831 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:23,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:23,875 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:23,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:23,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695617352] [2021-03-11 14:39:23,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:23,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:23,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184007001] [2021-03-11 14:39:23,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:23,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:23,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:23,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:23,916 INFO L87 Difference]: Start difference. First operand 1572 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:24,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:24,079 INFO L93 Difference]: Finished difference Result 2906 states and 11608 transitions. [2021-03-11 14:39:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:24,080 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:24,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:24,085 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:39:24,085 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:39:24,085 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 328.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:24,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:39:24,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1567. [2021-03-11 14:39:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.491060025542784) internal successors, (7033), 1566 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7033 transitions. [2021-03-11 14:39:24,131 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7033 transitions. Word has length 28 [2021-03-11 14:39:24,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:24,131 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7033 transitions. [2021-03-11 14:39:24,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:24,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7033 transitions. [2021-03-11 14:39:24,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:24,133 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:24,133 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:24,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2021-03-11 14:39:24,134 INFO L428 AbstractCegarLoop]: === Iteration 443 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:24,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:24,134 INFO L82 PathProgramCache]: Analyzing trace with hash 963307322, now seen corresponding path program 435 times [2021-03-11 14:39:24,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:24,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251417739] [2021-03-11 14:39:24,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:24,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:24,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:24,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:24,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:24,149 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:24,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:24,159 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:24,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:24,174 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:24,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:24,193 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:24,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:24,217 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:24,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:24,267 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:24,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:24,304 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:24,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:24,347 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:24,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:24,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251417739] [2021-03-11 14:39:24,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:24,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:24,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825720268] [2021-03-11 14:39:24,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:24,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:24,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:24,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:24,388 INFO L87 Difference]: Start difference. First operand 1567 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:24,558 INFO L93 Difference]: Finished difference Result 2898 states and 11592 transitions. [2021-03-11 14:39:24,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:24,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:24,565 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:39:24,565 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:39:24,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 298.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:24,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:39:24,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1571. [2021-03-11 14:39:24,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484076433121019) internal successors, (7040), 1570 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7040 transitions. [2021-03-11 14:39:24,610 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7040 transitions. Word has length 28 [2021-03-11 14:39:24,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:24,610 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7040 transitions. [2021-03-11 14:39:24,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:24,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7040 transitions. [2021-03-11 14:39:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:24,613 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:24,613 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:24,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2021-03-11 14:39:24,613 INFO L428 AbstractCegarLoop]: === Iteration 444 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:24,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:24,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1136555014, now seen corresponding path program 436 times [2021-03-11 14:39:24,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:24,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239778118] [2021-03-11 14:39:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:24,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:24,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:24,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:24,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:24,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:24,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:24,638 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:24,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:24,653 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:24,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:24,673 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:24,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:24,697 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:24,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:24,747 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:24,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:24,784 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:24,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:24,828 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:24,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:24,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:24,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239778118] [2021-03-11 14:39:24,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:24,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:24,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122268025] [2021-03-11 14:39:24,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:24,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:24,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:24,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:24,870 INFO L87 Difference]: Start difference. First operand 1571 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:25,039 INFO L93 Difference]: Finished difference Result 2897 states and 11586 transitions. [2021-03-11 14:39:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:25,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:25,045 INFO L225 Difference]: With dead ends: 2897 [2021-03-11 14:39:25,045 INFO L226 Difference]: Without dead ends: 2879 [2021-03-11 14:39:25,045 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 299.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:25,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-03-11 14:39:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1567. [2021-03-11 14:39:25,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.488505747126437) internal successors, (7029), 1566 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7029 transitions. [2021-03-11 14:39:25,091 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7029 transitions. Word has length 28 [2021-03-11 14:39:25,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:25,091 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7029 transitions. [2021-03-11 14:39:25,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:25,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7029 transitions. [2021-03-11 14:39:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:25,093 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:25,093 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:25,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2021-03-11 14:39:25,094 INFO L428 AbstractCegarLoop]: === Iteration 445 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:25,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:25,094 INFO L82 PathProgramCache]: Analyzing trace with hash -559696902, now seen corresponding path program 437 times [2021-03-11 14:39:25,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:25,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467874328] [2021-03-11 14:39:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:25,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:25,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:25,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:25,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:25,109 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:25,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:25,119 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:25,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:25,134 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:25,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:25,154 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:25,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:25,179 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:25,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:25,229 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:25,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:25,290 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:25,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:25,334 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:25,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:25,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467874328] [2021-03-11 14:39:25,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:25,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:25,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923418240] [2021-03-11 14:39:25,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:25,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:25,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:25,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:25,376 INFO L87 Difference]: Start difference. First operand 1567 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:25,545 INFO L93 Difference]: Finished difference Result 2904 states and 11600 transitions. [2021-03-11 14:39:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:25,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:25,551 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:25,552 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:39:25,552 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 331.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:39:25,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1571. [2021-03-11 14:39:25,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4815286624203825) internal successors, (7036), 1570 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7036 transitions. [2021-03-11 14:39:25,598 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7036 transitions. Word has length 28 [2021-03-11 14:39:25,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:25,598 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7036 transitions. [2021-03-11 14:39:25,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7036 transitions. [2021-03-11 14:39:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:25,600 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:25,600 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:25,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2021-03-11 14:39:25,600 INFO L428 AbstractCegarLoop]: === Iteration 446 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:25,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1674410592, now seen corresponding path program 438 times [2021-03-11 14:39:25,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:25,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133905080] [2021-03-11 14:39:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:25,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:25,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:25,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:25,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:25,616 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:25,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:25,626 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:25,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:25,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:25,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:25,663 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:25,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:25,687 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:25,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:25,740 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:25,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:25,802 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:25,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:25,847 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:25,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:25,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:25,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133905080] [2021-03-11 14:39:25,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:25,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:25,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095537103] [2021-03-11 14:39:25,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:25,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:25,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:25,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:25,889 INFO L87 Difference]: Start difference. First operand 1571 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:26,054 INFO L93 Difference]: Finished difference Result 2900 states and 11588 transitions. [2021-03-11 14:39:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:26,054 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:26,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:26,060 INFO L225 Difference]: With dead ends: 2900 [2021-03-11 14:39:26,060 INFO L226 Difference]: Without dead ends: 2878 [2021-03-11 14:39:26,060 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 332.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-11 14:39:26,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 1563. [2021-03-11 14:39:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.492957746478873) internal successors, (7018), 1562 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7018 transitions. [2021-03-11 14:39:26,106 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7018 transitions. Word has length 28 [2021-03-11 14:39:26,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:26,107 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7018 transitions. [2021-03-11 14:39:26,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:26,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7018 transitions. [2021-03-11 14:39:26,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:26,109 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:26,109 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:26,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2021-03-11 14:39:26,109 INFO L428 AbstractCegarLoop]: === Iteration 447 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:26,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:26,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1519543332, now seen corresponding path program 439 times [2021-03-11 14:39:26,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:26,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085089160] [2021-03-11 14:39:26,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:26,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:26,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:26,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:26,124 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:26,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:26,135 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:26,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:26,150 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:26,170 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:26,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:26,194 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:26,225 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:26,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:26,286 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:26,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:26,331 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:26,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:26,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085089160] [2021-03-11 14:39:26,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:26,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:26,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445343966] [2021-03-11 14:39:26,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:26,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:26,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:26,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:26,373 INFO L87 Difference]: Start difference. First operand 1563 states and 7018 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:26,569 INFO L93 Difference]: Finished difference Result 2911 states and 11625 transitions. [2021-03-11 14:39:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:26,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:26,575 INFO L225 Difference]: With dead ends: 2911 [2021-03-11 14:39:26,575 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:39:26,575 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 305.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:26,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:39:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1573. [2021-03-11 14:39:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.482188295165394) internal successors, (7046), 1572 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7046 transitions. [2021-03-11 14:39:26,621 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7046 transitions. Word has length 28 [2021-03-11 14:39:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:26,621 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7046 transitions. [2021-03-11 14:39:26,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:26,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7046 transitions. [2021-03-11 14:39:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:26,623 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:26,623 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:26,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2021-03-11 14:39:26,623 INFO L428 AbstractCegarLoop]: === Iteration 448 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:26,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:26,623 INFO L82 PathProgramCache]: Analyzing trace with hash -541316470, now seen corresponding path program 440 times [2021-03-11 14:39:26,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:26,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440932232] [2021-03-11 14:39:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:26,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:26,639 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:26,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:26,648 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:26,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:26,662 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:26,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:26,681 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:26,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:26,704 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:26,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:26,733 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:26,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:26,793 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:26,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:26,836 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:26,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:26,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440932232] [2021-03-11 14:39:26,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:26,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:26,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244197342] [2021-03-11 14:39:26,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:26,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:26,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:26,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:26,876 INFO L87 Difference]: Start difference. First operand 1573 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:27,030 INFO L93 Difference]: Finished difference Result 2914 states and 11626 transitions. [2021-03-11 14:39:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:27,031 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:27,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:27,036 INFO L225 Difference]: With dead ends: 2914 [2021-03-11 14:39:27,036 INFO L226 Difference]: Without dead ends: 2891 [2021-03-11 14:39:27,036 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 299.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:27,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2021-03-11 14:39:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1568. [2021-03-11 14:39:27,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.487555839183153) internal successors, (7032), 1567 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7032 transitions. [2021-03-11 14:39:27,083 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7032 transitions. Word has length 28 [2021-03-11 14:39:27,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:27,083 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7032 transitions. [2021-03-11 14:39:27,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7032 transitions. [2021-03-11 14:39:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:27,086 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:27,086 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:27,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2021-03-11 14:39:27,086 INFO L428 AbstractCegarLoop]: === Iteration 449 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:27,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:27,086 INFO L82 PathProgramCache]: Analyzing trace with hash 984313530, now seen corresponding path program 441 times [2021-03-11 14:39:27,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:27,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415333292] [2021-03-11 14:39:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:27,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:27,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:27,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:27,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:27,105 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:27,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:27,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:27,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:27,130 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:27,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:27,149 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:27,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:27,172 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:27,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:27,201 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:27,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:27,238 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:27,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:27,282 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:27,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:27,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415333292] [2021-03-11 14:39:27,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:27,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:27,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537487746] [2021-03-11 14:39:27,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:27,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:27,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:27,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:27,323 INFO L87 Difference]: Start difference. First operand 1568 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:27,475 INFO L93 Difference]: Finished difference Result 2910 states and 11618 transitions. [2021-03-11 14:39:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:27,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:27,482 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:39:27,482 INFO L226 Difference]: Without dead ends: 2895 [2021-03-11 14:39:27,482 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 274.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-03-11 14:39:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 1573. [2021-03-11 14:39:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.479007633587786) internal successors, (7041), 1572 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7041 transitions. [2021-03-11 14:39:27,528 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7041 transitions. Word has length 28 [2021-03-11 14:39:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:27,528 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7041 transitions. [2021-03-11 14:39:27,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7041 transitions. [2021-03-11 14:39:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:27,530 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:27,530 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:27,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2021-03-11 14:39:27,530 INFO L428 AbstractCegarLoop]: === Iteration 450 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:27,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1648001078, now seen corresponding path program 442 times [2021-03-11 14:39:27,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:27,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114983734] [2021-03-11 14:39:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:27,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:27,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:27,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:27,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:27,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:27,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:27,555 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:27,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:27,569 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:27,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:27,588 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:27,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:27,611 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:27,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:27,640 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:27,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:27,675 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:27,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:27,718 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:27,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:27,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114983734] [2021-03-11 14:39:27,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:27,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:27,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407772375] [2021-03-11 14:39:27,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:27,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:27,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:27,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:27,758 INFO L87 Difference]: Start difference. First operand 1573 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:27,925 INFO L93 Difference]: Finished difference Result 2912 states and 11617 transitions. [2021-03-11 14:39:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:27,926 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:27,931 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:39:27,931 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:39:27,931 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:27,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:39:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1568. [2021-03-11 14:39:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.484365028717294) internal successors, (7027), 1567 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7027 transitions. [2021-03-11 14:39:27,976 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7027 transitions. Word has length 28 [2021-03-11 14:39:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:27,977 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7027 transitions. [2021-03-11 14:39:27,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7027 transitions. [2021-03-11 14:39:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:27,979 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:27,979 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:27,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2021-03-11 14:39:27,979 INFO L428 AbstractCegarLoop]: === Iteration 451 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:27,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:27,979 INFO L82 PathProgramCache]: Analyzing trace with hash -538690694, now seen corresponding path program 443 times [2021-03-11 14:39:27,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:27,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945651595] [2021-03-11 14:39:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:27,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:27,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:27,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:27,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:27,994 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:27,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:28,004 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:28,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:28,019 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:28,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:28,037 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:28,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:28,061 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:28,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:28,090 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:28,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:28,127 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:28,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:28,171 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:28,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:28,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945651595] [2021-03-11 14:39:28,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:28,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:28,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366536831] [2021-03-11 14:39:28,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:28,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:28,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:28,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:28,211 INFO L87 Difference]: Start difference. First operand 1568 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:28,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:28,371 INFO L93 Difference]: Finished difference Result 2918 states and 11631 transitions. [2021-03-11 14:39:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:28,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:28,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:28,377 INFO L225 Difference]: With dead ends: 2918 [2021-03-11 14:39:28,377 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:39:28,377 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 279.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:39:28,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1575. [2021-03-11 14:39:28,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.472681067344346) internal successors, (7040), 1574 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7040 transitions. [2021-03-11 14:39:28,423 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7040 transitions. Word has length 28 [2021-03-11 14:39:28,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:28,423 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7040 transitions. [2021-03-11 14:39:28,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7040 transitions. [2021-03-11 14:39:28,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:28,426 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:28,426 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:28,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2021-03-11 14:39:28,426 INFO L428 AbstractCegarLoop]: === Iteration 452 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:28,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1110145500, now seen corresponding path program 444 times [2021-03-11 14:39:28,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:28,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092987504] [2021-03-11 14:39:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:28,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:28,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:28,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:28,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:28,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:28,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:28,451 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:28,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:28,466 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:28,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:28,485 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:28,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:28,509 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:28,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:28,539 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:28,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:28,576 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:28,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:28,620 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:28,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:28,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092987504] [2021-03-11 14:39:28,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:28,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:28,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56964503] [2021-03-11 14:39:28,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:28,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:28,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:28,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:28,660 INFO L87 Difference]: Start difference. First operand 1575 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:28,825 INFO L93 Difference]: Finished difference Result 2917 states and 11622 transitions. [2021-03-11 14:39:28,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:28,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:28,831 INFO L225 Difference]: With dead ends: 2917 [2021-03-11 14:39:28,831 INFO L226 Difference]: Without dead ends: 2888 [2021-03-11 14:39:28,831 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 275.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:28,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-03-11 14:39:28,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1563. [2021-03-11 14:39:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.490396927016645) internal successors, (7014), 1562 states have internal predecessors, (7014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7014 transitions. [2021-03-11 14:39:28,878 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7014 transitions. Word has length 28 [2021-03-11 14:39:28,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:28,878 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7014 transitions. [2021-03-11 14:39:28,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:28,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7014 transitions. [2021-03-11 14:39:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:28,881 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:28,881 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:28,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2021-03-11 14:39:28,881 INFO L428 AbstractCegarLoop]: === Iteration 453 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:28,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:28,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1551052644, now seen corresponding path program 445 times [2021-03-11 14:39:28,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:28,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035520995] [2021-03-11 14:39:28,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:28,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:28,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:28,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:28,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:28,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:28,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:28,909 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:28,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:28,923 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:28,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:28,942 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:28,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:28,965 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:28,994 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:28,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:29,030 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:29,073 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:29,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:29,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035520995] [2021-03-11 14:39:29,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:29,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:29,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721751677] [2021-03-11 14:39:29,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:29,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:29,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:29,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:29,113 INFO L87 Difference]: Start difference. First operand 1563 states and 7014 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:29,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:29,304 INFO L93 Difference]: Finished difference Result 2897 states and 11586 transitions. [2021-03-11 14:39:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:29,305 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:29,310 INFO L225 Difference]: With dead ends: 2897 [2021-03-11 14:39:29,310 INFO L226 Difference]: Without dead ends: 2882 [2021-03-11 14:39:29,310 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:29,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-03-11 14:39:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1571. [2021-03-11 14:39:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4815286624203825) internal successors, (7036), 1570 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7036 transitions. [2021-03-11 14:39:29,356 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7036 transitions. Word has length 28 [2021-03-11 14:39:29,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:29,356 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7036 transitions. [2021-03-11 14:39:29,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:29,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7036 transitions. [2021-03-11 14:39:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:29,358 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:29,358 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:29,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2021-03-11 14:39:29,358 INFO L428 AbstractCegarLoop]: === Iteration 454 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:29,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:29,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1724300336, now seen corresponding path program 446 times [2021-03-11 14:39:29,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:29,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671181885] [2021-03-11 14:39:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:29,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:29,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:29,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:29,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:29,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:29,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:29,384 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:29,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:29,398 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:29,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:29,417 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:29,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:29,441 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:29,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:29,470 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:29,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:29,507 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:29,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:29,550 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:29,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:29,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671181885] [2021-03-11 14:39:29,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:29,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:29,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398470512] [2021-03-11 14:39:29,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:29,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:29,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:29,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:29,591 INFO L87 Difference]: Start difference. First operand 1571 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:29,758 INFO L93 Difference]: Finished difference Result 2896 states and 11580 transitions. [2021-03-11 14:39:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:29,759 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:29,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:29,765 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:39:29,765 INFO L226 Difference]: Without dead ends: 2878 [2021-03-11 14:39:29,765 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 273.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:29,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-11 14:39:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 1567. [2021-03-11 14:39:29,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.485951468710089) internal successors, (7025), 1566 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7025 transitions. [2021-03-11 14:39:29,811 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7025 transitions. Word has length 28 [2021-03-11 14:39:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:29,811 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7025 transitions. [2021-03-11 14:39:29,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:29,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7025 transitions. [2021-03-11 14:39:29,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:29,813 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:29,813 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:29,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2021-03-11 14:39:29,813 INFO L428 AbstractCegarLoop]: === Iteration 455 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:29,813 INFO L82 PathProgramCache]: Analyzing trace with hash 477967264, now seen corresponding path program 447 times [2021-03-11 14:39:29,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:29,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045652335] [2021-03-11 14:39:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:29,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:29,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:29,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:29,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:29,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:29,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:29,838 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:29,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:29,852 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:29,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:29,871 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:29,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:29,894 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:29,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:29,923 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:29,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:29,959 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:29,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:30,003 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:30,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:30,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:30,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045652335] [2021-03-11 14:39:30,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:30,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:30,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071673066] [2021-03-11 14:39:30,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:30,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:30,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:30,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:30,044 INFO L87 Difference]: Start difference. First operand 1567 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:30,227 INFO L93 Difference]: Finished difference Result 2901 states and 11591 transitions. [2021-03-11 14:39:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:30,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:30,233 INFO L225 Difference]: With dead ends: 2901 [2021-03-11 14:39:30,234 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:39:30,234 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 274.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:39:30,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1572. [2021-03-11 14:39:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.477402928071292) internal successors, (7034), 1571 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:30,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7034 transitions. [2021-03-11 14:39:30,280 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7034 transitions. Word has length 28 [2021-03-11 14:39:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:30,280 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7034 transitions. [2021-03-11 14:39:30,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7034 transitions. [2021-03-11 14:39:30,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:30,282 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:30,282 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:30,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2021-03-11 14:39:30,282 INFO L428 AbstractCegarLoop]: === Iteration 456 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:30,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:30,282 INFO L82 PathProgramCache]: Analyzing trace with hash 2140619952, now seen corresponding path program 448 times [2021-03-11 14:39:30,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:30,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327846025] [2021-03-11 14:39:30,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:30,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:30,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:30,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:30,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:30,298 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:30,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:30,308 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:30,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:30,323 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:30,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:30,342 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:30,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:30,365 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:30,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:30,395 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:30,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:30,431 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:30,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:30,479 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:30,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:30,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327846025] [2021-03-11 14:39:30,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:30,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:30,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412738750] [2021-03-11 14:39:30,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:30,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:30,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:30,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:30,520 INFO L87 Difference]: Start difference. First operand 1572 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:30,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:30,705 INFO L93 Difference]: Finished difference Result 2903 states and 11590 transitions. [2021-03-11 14:39:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:30,706 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:30,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:30,711 INFO L225 Difference]: With dead ends: 2903 [2021-03-11 14:39:30,711 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:39:30,711 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 276.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:30,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:39:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1567. [2021-03-11 14:39:30,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.483397190293742) internal successors, (7021), 1566 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7021 transitions. [2021-03-11 14:39:30,758 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7021 transitions. Word has length 28 [2021-03-11 14:39:30,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:30,758 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7021 transitions. [2021-03-11 14:39:30,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:30,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7021 transitions. [2021-03-11 14:39:30,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:30,760 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:30,760 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:30,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2021-03-11 14:39:30,760 INFO L428 AbstractCegarLoop]: === Iteration 457 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:30,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:30,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1726926112, now seen corresponding path program 449 times [2021-03-11 14:39:30,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:30,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64870416] [2021-03-11 14:39:30,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:30,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:30,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:30,776 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:30,787 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:30,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:30,801 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:30,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:30,820 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:30,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:30,844 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:30,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:30,874 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:30,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:30,932 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:30,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:30,976 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:30,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:31,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:31,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64870416] [2021-03-11 14:39:31,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:31,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:31,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081680076] [2021-03-11 14:39:31,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:31,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:31,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:31,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:31,016 INFO L87 Difference]: Start difference. First operand 1567 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:31,204 INFO L93 Difference]: Finished difference Result 2898 states and 11580 transitions. [2021-03-11 14:39:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:31,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:31,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:31,210 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:39:31,211 INFO L226 Difference]: Without dead ends: 2884 [2021-03-11 14:39:31,211 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 300.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-03-11 14:39:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1571. [2021-03-11 14:39:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.476433121019109) internal successors, (7028), 1570 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7028 transitions. [2021-03-11 14:39:31,257 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7028 transitions. Word has length 28 [2021-03-11 14:39:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:31,258 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7028 transitions. [2021-03-11 14:39:31,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7028 transitions. [2021-03-11 14:39:31,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:31,260 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:31,260 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:31,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2021-03-11 14:39:31,260 INFO L428 AbstractCegarLoop]: === Iteration 458 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:31,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:31,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1078636188, now seen corresponding path program 450 times [2021-03-11 14:39:31,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:31,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714275723] [2021-03-11 14:39:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:31,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:31,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:31,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:31,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:31,276 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:31,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:31,286 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:31,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:31,301 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:31,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:31,321 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:31,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:31,346 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:31,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:31,377 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:31,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:31,437 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:31,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:31,482 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:31,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:31,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714275723] [2021-03-11 14:39:31,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:31,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:31,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844122358] [2021-03-11 14:39:31,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:31,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:31,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:31,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:31,523 INFO L87 Difference]: Start difference. First operand 1571 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:31,729 INFO L93 Difference]: Finished difference Result 2901 states and 11582 transitions. [2021-03-11 14:39:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:31,736 INFO L225 Difference]: With dead ends: 2901 [2021-03-11 14:39:31,736 INFO L226 Difference]: Without dead ends: 2876 [2021-03-11 14:39:31,736 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 305.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:31,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2021-03-11 14:39:31,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 1563. [2021-03-11 14:39:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.4878361075544175) internal successors, (7010), 1562 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7010 transitions. [2021-03-11 14:39:31,783 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7010 transitions. Word has length 28 [2021-03-11 14:39:31,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:31,783 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7010 transitions. [2021-03-11 14:39:31,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7010 transitions. [2021-03-11 14:39:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:31,785 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:31,785 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:31,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2021-03-11 14:39:31,785 INFO L428 AbstractCegarLoop]: === Iteration 459 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:31,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:31,785 INFO L82 PathProgramCache]: Analyzing trace with hash -478297846, now seen corresponding path program 451 times [2021-03-11 14:39:31,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:31,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865626339] [2021-03-11 14:39:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:31,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:31,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:31,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:31,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:31,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:31,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:31,811 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:31,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:31,828 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:31,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:31,847 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:31,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:31,871 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:31,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:31,920 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:31,982 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:31,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:32,028 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:32,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:32,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865626339] [2021-03-11 14:39:32,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:32,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:32,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947668882] [2021-03-11 14:39:32,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:32,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:32,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:32,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:32,070 INFO L87 Difference]: Start difference. First operand 1563 states and 7010 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:32,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:32,255 INFO L93 Difference]: Finished difference Result 2908 states and 11606 transitions. [2021-03-11 14:39:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:32,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:32,261 INFO L225 Difference]: With dead ends: 2908 [2021-03-11 14:39:32,261 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:39:32,262 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 336.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:39:32,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1571. [2021-03-11 14:39:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.478980891719745) internal successors, (7032), 1570 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7032 transitions. [2021-03-11 14:39:32,308 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7032 transitions. Word has length 28 [2021-03-11 14:39:32,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:32,308 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7032 transitions. [2021-03-11 14:39:32,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:32,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7032 transitions. [2021-03-11 14:39:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:32,310 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:32,310 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:32,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2021-03-11 14:39:32,310 INFO L428 AbstractCegarLoop]: === Iteration 460 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:32,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:32,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1755809648, now seen corresponding path program 452 times [2021-03-11 14:39:32,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:32,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256770291] [2021-03-11 14:39:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:32,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:32,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:32,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:32,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:32,326 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:32,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:32,336 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:32,351 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:32,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:32,370 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:32,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:32,395 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:32,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:32,444 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:32,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:32,505 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:32,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:32,549 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:32,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:32,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256770291] [2021-03-11 14:39:32,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:32,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:32,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45310927] [2021-03-11 14:39:32,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:32,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:32,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:32,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:32,590 INFO L87 Difference]: Start difference. First operand 1571 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:32,747 INFO L93 Difference]: Finished difference Result 2904 states and 11594 transitions. [2021-03-11 14:39:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:32,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:32,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:32,754 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:32,754 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:39:32,754 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 322.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:39:32,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1567. [2021-03-11 14:39:32,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.483397190293742) internal successors, (7021), 1566 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7021 transitions. [2021-03-11 14:39:32,800 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7021 transitions. Word has length 28 [2021-03-11 14:39:32,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:32,800 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7021 transitions. [2021-03-11 14:39:32,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:32,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7021 transitions. [2021-03-11 14:39:32,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:32,802 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:32,802 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:32,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2021-03-11 14:39:32,802 INFO L428 AbstractCegarLoop]: === Iteration 461 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:32,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:32,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1551383226, now seen corresponding path program 453 times [2021-03-11 14:39:32,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:32,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635512332] [2021-03-11 14:39:32,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:32,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:32,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:32,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:32,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:32,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:32,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:32,828 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:32,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:32,843 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:32,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:32,862 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:32,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:32,886 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:32,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:32,935 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:32,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:32,973 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:32,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:33,017 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:33,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:33,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635512332] [2021-03-11 14:39:33,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:33,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:33,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948230860] [2021-03-11 14:39:33,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:33,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:33,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:33,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:33,059 INFO L87 Difference]: Start difference. First operand 1567 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:33,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:33,245 INFO L93 Difference]: Finished difference Result 2914 states and 11617 transitions. [2021-03-11 14:39:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:33,246 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:33,252 INFO L225 Difference]: With dead ends: 2914 [2021-03-11 14:39:33,252 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:39:33,252 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 304.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:33,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:39:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1574. [2021-03-11 14:39:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4717101080737445) internal successors, (7034), 1573 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7034 transitions. [2021-03-11 14:39:33,298 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7034 transitions. Word has length 28 [2021-03-11 14:39:33,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:33,298 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7034 transitions. [2021-03-11 14:39:33,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7034 transitions. [2021-03-11 14:39:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:33,300 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:33,300 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:33,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2021-03-11 14:39:33,300 INFO L428 AbstractCegarLoop]: === Iteration 462 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:33,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:33,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2122838032, now seen corresponding path program 454 times [2021-03-11 14:39:33,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:33,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047756876] [2021-03-11 14:39:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:33,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:33,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:33,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:33,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:33,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:33,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:33,327 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:33,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:33,342 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:33,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:33,361 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:33,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:33,386 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:33,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:33,435 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:33,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:33,473 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:33,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:33,518 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:33,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:33,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047756876] [2021-03-11 14:39:33,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:33,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:33,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776838487] [2021-03-11 14:39:33,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:33,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:33,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:33,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:33,559 INFO L87 Difference]: Start difference. First operand 1574 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:33,726 INFO L93 Difference]: Finished difference Result 2913 states and 11608 transitions. [2021-03-11 14:39:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:33,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:33,732 INFO L225 Difference]: With dead ends: 2913 [2021-03-11 14:39:33,732 INFO L226 Difference]: Without dead ends: 2889 [2021-03-11 14:39:33,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 300.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:33,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2021-03-11 14:39:33,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 1567. [2021-03-11 14:39:33,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.480842911877395) internal successors, (7017), 1566 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7017 transitions. [2021-03-11 14:39:33,778 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7017 transitions. Word has length 28 [2021-03-11 14:39:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:33,778 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7017 transitions. [2021-03-11 14:39:33,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7017 transitions. [2021-03-11 14:39:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:33,780 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:33,780 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:33,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2021-03-11 14:39:33,780 INFO L428 AbstractCegarLoop]: === Iteration 463 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:33,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:33,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1220579846, now seen corresponding path program 455 times [2021-03-11 14:39:33,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:33,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569361402] [2021-03-11 14:39:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:33,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:33,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:33,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:33,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:33,802 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:33,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:33,815 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:33,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:33,836 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:33,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:33,863 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:33,896 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:33,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:33,960 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:33,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:34,038 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:34,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:34,096 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:34,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:34,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569361402] [2021-03-11 14:39:34,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:34,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:34,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859842746] [2021-03-11 14:39:34,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:34,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:34,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:34,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:34,150 INFO L87 Difference]: Start difference. First operand 1567 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:34,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:34,361 INFO L93 Difference]: Finished difference Result 2903 states and 11588 transitions. [2021-03-11 14:39:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:34,362 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:34,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:34,367 INFO L225 Difference]: With dead ends: 2903 [2021-03-11 14:39:34,367 INFO L226 Difference]: Without dead ends: 2889 [2021-03-11 14:39:34,367 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 402.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2021-03-11 14:39:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 1571. [2021-03-11 14:39:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.473885350318471) internal successors, (7024), 1570 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7024 transitions. [2021-03-11 14:39:34,413 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7024 transitions. Word has length 28 [2021-03-11 14:39:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:34,413 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7024 transitions. [2021-03-11 14:39:34,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7024 transitions. [2021-03-11 14:39:34,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:34,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:34,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:34,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2021-03-11 14:39:34,415 INFO L428 AbstractCegarLoop]: === Iteration 464 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:34,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:34,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1584982454, now seen corresponding path program 456 times [2021-03-11 14:39:34,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:34,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057584569] [2021-03-11 14:39:34,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:34,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:34,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:34,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:34,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:34,431 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:34,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:34,441 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:34,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:34,456 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:34,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:34,476 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:34,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:34,501 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:34,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:34,551 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:34,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:34,611 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:34,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:34,657 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:34,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:34,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:34,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057584569] [2021-03-11 14:39:34,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:34,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:34,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586637416] [2021-03-11 14:39:34,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:34,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:34,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:34,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:34,699 INFO L87 Difference]: Start difference. First operand 1571 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:34,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:34,892 INFO L93 Difference]: Finished difference Result 2906 states and 11590 transitions. [2021-03-11 14:39:34,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:34,893 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:34,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:34,898 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:39:34,898 INFO L226 Difference]: Without dead ends: 2877 [2021-03-11 14:39:34,898 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 327.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:34,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2021-03-11 14:39:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 1559. [2021-03-11 14:39:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 4.492297817715019) internal successors, (6999), 1558 states have internal predecessors, (6999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 6999 transitions. [2021-03-11 14:39:34,944 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 6999 transitions. Word has length 28 [2021-03-11 14:39:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:34,944 INFO L480 AbstractCegarLoop]: Abstraction has 1559 states and 6999 transitions. [2021-03-11 14:39:34,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 6999 transitions. [2021-03-11 14:39:34,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:34,946 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:34,946 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:34,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2021-03-11 14:39:34,947 INFO L428 AbstractCegarLoop]: === Iteration 465 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:34,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1188275872, now seen corresponding path program 457 times [2021-03-11 14:39:34,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:34,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923246864] [2021-03-11 14:39:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:34,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:34,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:34,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:34,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:34,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:34,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:34,973 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:34,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:34,987 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:34,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:35,007 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:35,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:35,031 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:35,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:35,061 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:35,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:35,098 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:35,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:35,145 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:35,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:35,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923246864] [2021-03-11 14:39:35,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:35,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:35,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504154233] [2021-03-11 14:39:35,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:35,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:35,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:35,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:35,188 INFO L87 Difference]: Start difference. First operand 1559 states and 6999 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:35,387 INFO L93 Difference]: Finished difference Result 2912 states and 11627 transitions. [2021-03-11 14:39:35,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:35,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:35,394 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:39:35,394 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:39:35,394 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 285.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:35,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:39:35,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1573. [2021-03-11 14:39:35,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.480916030534351) internal successors, (7044), 1572 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7044 transitions. [2021-03-11 14:39:35,440 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7044 transitions. Word has length 28 [2021-03-11 14:39:35,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:35,440 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7044 transitions. [2021-03-11 14:39:35,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:35,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7044 transitions. [2021-03-11 14:39:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:35,443 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:35,443 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:35,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2021-03-11 14:39:35,443 INFO L428 AbstractCegarLoop]: === Iteration 466 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:35,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:35,443 INFO L82 PathProgramCache]: Analyzing trace with hash 301129124, now seen corresponding path program 458 times [2021-03-11 14:39:35,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:35,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506725441] [2021-03-11 14:39:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:35,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:35,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:35,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:35,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:35,462 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:35,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:35,472 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:35,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:35,487 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:35,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:35,507 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:35,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:35,532 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:35,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:35,562 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:35,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:35,599 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:35,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:35,644 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:35,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:35,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506725441] [2021-03-11 14:39:35,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:35,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:35,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473171682] [2021-03-11 14:39:35,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:35,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:35,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:35,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:35,686 INFO L87 Difference]: Start difference. First operand 1573 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:35,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:35,848 INFO L93 Difference]: Finished difference Result 2914 states and 11625 transitions. [2021-03-11 14:39:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:35,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:35,855 INFO L225 Difference]: With dead ends: 2914 [2021-03-11 14:39:35,855 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:39:35,855 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 288.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:39:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1567. [2021-03-11 14:39:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.488505747126437) internal successors, (7029), 1566 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7029 transitions. [2021-03-11 14:39:35,900 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7029 transitions. Word has length 28 [2021-03-11 14:39:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:35,901 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7029 transitions. [2021-03-11 14:39:35,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7029 transitions. [2021-03-11 14:39:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:35,903 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:35,903 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:35,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2021-03-11 14:39:35,903 INFO L428 AbstractCegarLoop]: === Iteration 467 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:35,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:35,903 INFO L82 PathProgramCache]: Analyzing trace with hash -650420294, now seen corresponding path program 459 times [2021-03-11 14:39:35,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:35,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791079261] [2021-03-11 14:39:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:35,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:35,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:35,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:35,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:35,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:35,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:35,929 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:35,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:35,944 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:35,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:35,963 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:35,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:35,988 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:35,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:36,019 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:36,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:36,056 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:36,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:36,102 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:36,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:36,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791079261] [2021-03-11 14:39:36,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:36,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:36,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788448096] [2021-03-11 14:39:36,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:36,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:36,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:36,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:36,144 INFO L87 Difference]: Start difference. First operand 1567 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:36,317 INFO L93 Difference]: Finished difference Result 2906 states and 11609 transitions. [2021-03-11 14:39:36,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:36,318 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:36,323 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:39:36,323 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:39:36,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 285.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:39:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1571. [2021-03-11 14:39:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4815286624203825) internal successors, (7036), 1570 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:36,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7036 transitions. [2021-03-11 14:39:36,369 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7036 transitions. Word has length 28 [2021-03-11 14:39:36,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:36,369 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7036 transitions. [2021-03-11 14:39:36,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:36,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7036 transitions. [2021-03-11 14:39:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:36,371 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:36,371 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:36,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2021-03-11 14:39:36,371 INFO L428 AbstractCegarLoop]: === Iteration 468 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:36,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:36,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1221875100, now seen corresponding path program 460 times [2021-03-11 14:39:36,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:36,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400796934] [2021-03-11 14:39:36,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:36,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:36,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:36,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:36,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:36,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:36,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:36,396 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:36,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:36,411 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:36,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:36,430 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:36,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:36,454 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:36,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:36,483 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:36,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:36,520 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:36,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:36,565 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:36,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:36,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400796934] [2021-03-11 14:39:36,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:36,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:36,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242211281] [2021-03-11 14:39:36,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:36,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:36,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:36,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:36,607 INFO L87 Difference]: Start difference. First operand 1571 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:36,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:36,795 INFO L93 Difference]: Finished difference Result 2904 states and 11601 transitions. [2021-03-11 14:39:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:36,796 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:36,802 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:36,802 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:39:36,802 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 281.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:36,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:39:36,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1567. [2021-03-11 14:39:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.485951468710089) internal successors, (7025), 1566 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7025 transitions. [2021-03-11 14:39:36,848 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7025 transitions. Word has length 28 [2021-03-11 14:39:36,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:36,848 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7025 transitions. [2021-03-11 14:39:36,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:36,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7025 transitions. [2021-03-11 14:39:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:36,850 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:36,850 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:36,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2021-03-11 14:39:36,850 INFO L428 AbstractCegarLoop]: === Iteration 469 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:36,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:36,850 INFO L82 PathProgramCache]: Analyzing trace with hash -234100678, now seen corresponding path program 461 times [2021-03-11 14:39:36,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:36,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293369713] [2021-03-11 14:39:36,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:36,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:36,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:36,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:36,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:36,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:36,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:36,877 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:36,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:36,892 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:36,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:36,912 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:36,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:36,937 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:36,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:36,967 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:36,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:37,025 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:37,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:37,071 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:37,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:37,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:37,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293369713] [2021-03-11 14:39:37,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:37,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:37,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673144547] [2021-03-11 14:39:37,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:37,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:37,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:37,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:37,113 INFO L87 Difference]: Start difference. First operand 1567 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:37,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:37,293 INFO L93 Difference]: Finished difference Result 2910 states and 11613 transitions. [2021-03-11 14:39:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:37,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:37,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:37,299 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:39:37,299 INFO L226 Difference]: Without dead ends: 2892 [2021-03-11 14:39:37,299 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 314.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2021-03-11 14:39:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 1571. [2021-03-11 14:39:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.478980891719745) internal successors, (7032), 1570 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7032 transitions. [2021-03-11 14:39:37,345 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7032 transitions. Word has length 28 [2021-03-11 14:39:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:37,345 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7032 transitions. [2021-03-11 14:39:37,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:37,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7032 transitions. [2021-03-11 14:39:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:37,347 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:37,348 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:37,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2021-03-11 14:39:37,348 INFO L428 AbstractCegarLoop]: === Iteration 470 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:37,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2000006816, now seen corresponding path program 462 times [2021-03-11 14:39:37,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:37,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589215902] [2021-03-11 14:39:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:37,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:37,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:37,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:37,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:37,363 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:37,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:37,374 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:37,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:37,390 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:37,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:37,410 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:37,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:37,435 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:39:37,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:39:37,464 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:37,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:37,522 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:37,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:37,567 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:37,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:37,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589215902] [2021-03-11 14:39:37,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:37,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:37,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526061985] [2021-03-11 14:39:37,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:37,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:37,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:37,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:37,609 INFO L87 Difference]: Start difference. First operand 1571 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:37,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:37,775 INFO L93 Difference]: Finished difference Result 2906 states and 11601 transitions. [2021-03-11 14:39:37,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:37,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:37,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:37,782 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:39:37,782 INFO L226 Difference]: Without dead ends: 2884 [2021-03-11 14:39:37,782 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 305.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2021-03-11 14:39:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1563. [2021-03-11 14:39:37,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.490396927016645) internal successors, (7014), 1562 states have internal predecessors, (7014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7014 transitions. [2021-03-11 14:39:37,828 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7014 transitions. Word has length 28 [2021-03-11 14:39:37,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:37,828 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7014 transitions. [2021-03-11 14:39:37,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:37,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7014 transitions. [2021-03-11 14:39:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:37,830 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:37,830 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:37,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2021-03-11 14:39:37,830 INFO L428 AbstractCegarLoop]: === Iteration 471 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:37,831 INFO L82 PathProgramCache]: Analyzing trace with hash -94184284, now seen corresponding path program 463 times [2021-03-11 14:39:37,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:37,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951102579] [2021-03-11 14:39:37,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:37,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:37,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:37,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:37,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:37,847 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:37,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:37,857 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:37,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:37,873 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:37,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:37,894 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:37,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:37,919 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:37,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:37,951 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:37,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:37,989 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:37,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:38,034 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:38,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:38,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951102579] [2021-03-11 14:39:38,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:38,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:38,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481693805] [2021-03-11 14:39:38,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:38,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:38,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:38,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:38,077 INFO L87 Difference]: Start difference. First operand 1563 states and 7014 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:38,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:38,278 INFO L93 Difference]: Finished difference Result 2922 states and 11652 transitions. [2021-03-11 14:39:38,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:38,279 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:38,285 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:39:38,285 INFO L226 Difference]: Without dead ends: 2906 [2021-03-11 14:39:38,285 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 290.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:38,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2021-03-11 14:39:38,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1575. [2021-03-11 14:39:38,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.477763659466328) internal successors, (7048), 1574 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7048 transitions. [2021-03-11 14:39:38,331 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7048 transitions. Word has length 28 [2021-03-11 14:39:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:38,331 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7048 transitions. [2021-03-11 14:39:38,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:38,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7048 transitions. [2021-03-11 14:39:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:38,333 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:38,333 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:38,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2021-03-11 14:39:38,333 INFO L428 AbstractCegarLoop]: === Iteration 472 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:38,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:38,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1395220712, now seen corresponding path program 464 times [2021-03-11 14:39:38,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:38,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287389657] [2021-03-11 14:39:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:38,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:38,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:38,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:38,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:38,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:38,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:38,359 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:38,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:38,375 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:38,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:38,395 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:38,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:38,420 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:38,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:38,453 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:38,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:38,491 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:38,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:38,536 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:38,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:38,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287389657] [2021-03-11 14:39:38,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:38,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:38,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33352587] [2021-03-11 14:39:38,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:38,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:38,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:38,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:38,578 INFO L87 Difference]: Start difference. First operand 1575 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:38,746 INFO L93 Difference]: Finished difference Result 2924 states and 11650 transitions. [2021-03-11 14:39:38,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:38,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:38,752 INFO L225 Difference]: With dead ends: 2924 [2021-03-11 14:39:38,752 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:39:38,752 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 295.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:39:38,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1569. [2021-03-11 14:39:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.48405612244898) internal successors, (7031), 1568 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7031 transitions. [2021-03-11 14:39:38,798 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7031 transitions. Word has length 28 [2021-03-11 14:39:38,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:38,799 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7031 transitions. [2021-03-11 14:39:38,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:38,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7031 transitions. [2021-03-11 14:39:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:38,801 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:38,801 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:38,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2021-03-11 14:39:38,801 INFO L428 AbstractCegarLoop]: === Iteration 473 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:38,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:38,801 INFO L82 PathProgramCache]: Analyzing trace with hash -629414086, now seen corresponding path program 465 times [2021-03-11 14:39:38,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:38,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870661342] [2021-03-11 14:39:38,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:38,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:38,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:38,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:38,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:38,817 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:38,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:38,827 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:38,843 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:38,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:38,863 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:38,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:38,888 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:38,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:38,921 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:38,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:38,960 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:38,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:39,006 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:39,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:39,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870661342] [2021-03-11 14:39:39,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:39,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:39,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453096187] [2021-03-11 14:39:39,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:39,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:39,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:39,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:39,049 INFO L87 Difference]: Start difference. First operand 1569 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:39,284 INFO L93 Difference]: Finished difference Result 2921 states and 11644 transitions. [2021-03-11 14:39:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:39,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:39,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:39,290 INFO L225 Difference]: With dead ends: 2921 [2021-03-11 14:39:39,291 INFO L226 Difference]: Without dead ends: 2905 [2021-03-11 14:39:39,291 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 293.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-03-11 14:39:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 1575. [2021-03-11 14:39:39,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.473951715374842) internal successors, (7042), 1574 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7042 transitions. [2021-03-11 14:39:39,337 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7042 transitions. Word has length 28 [2021-03-11 14:39:39,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:39,337 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7042 transitions. [2021-03-11 14:39:39,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:39,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7042 transitions. [2021-03-11 14:39:39,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:39,339 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:39,339 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:39,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2021-03-11 14:39:39,339 INFO L428 AbstractCegarLoop]: === Iteration 474 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:39,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:39,340 INFO L82 PathProgramCache]: Analyzing trace with hash 288536104, now seen corresponding path program 466 times [2021-03-11 14:39:39,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:39,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438755961] [2021-03-11 14:39:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:39,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:39,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:39,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:39,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:39,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:39,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:39,366 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:39,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:39,381 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:39,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:39,402 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:39,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:39,427 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:39,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:39,459 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:39,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:39,498 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:39,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:39,544 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:39,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:39,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438755961] [2021-03-11 14:39:39,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:39,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:39,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926915028] [2021-03-11 14:39:39,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:39,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:39,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:39,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:39,587 INFO L87 Difference]: Start difference. First operand 1575 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:39,770 INFO L93 Difference]: Finished difference Result 2922 states and 11640 transitions. [2021-03-11 14:39:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:39,776 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:39:39,777 INFO L226 Difference]: Without dead ends: 2899 [2021-03-11 14:39:39,777 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 292.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:39,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-03-11 14:39:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1569. [2021-03-11 14:39:39,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.480229591836735) internal successors, (7025), 1568 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7025 transitions. [2021-03-11 14:39:39,823 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7025 transitions. Word has length 28 [2021-03-11 14:39:39,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:39,823 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7025 transitions. [2021-03-11 14:39:39,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:39,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7025 transitions. [2021-03-11 14:39:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:39,825 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:39,825 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:39,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2021-03-11 14:39:39,826 INFO L428 AbstractCegarLoop]: === Iteration 475 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:39,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash -213094470, now seen corresponding path program 467 times [2021-03-11 14:39:39,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:39,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482556118] [2021-03-11 14:39:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:39,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:39,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:39,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:39,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:39,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:39,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:39,853 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:39,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:39,868 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:39,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:39,889 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:39,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:39,915 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:39,948 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:39,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:39,988 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:39,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:40,034 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:40,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:40,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482556118] [2021-03-11 14:39:40,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:40,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:40,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756060688] [2021-03-11 14:39:40,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:40,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:40,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:40,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:40,077 INFO L87 Difference]: Start difference. First operand 1569 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:40,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:40,316 INFO L93 Difference]: Finished difference Result 2926 states and 11649 transitions. [2021-03-11 14:39:40,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:40,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:40,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:40,323 INFO L225 Difference]: With dead ends: 2926 [2021-03-11 14:39:40,323 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:39:40,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 301.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:40,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:39:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1576. [2021-03-11 14:39:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.468571428571429) internal successors, (7038), 1575 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7038 transitions. [2021-03-11 14:39:40,369 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7038 transitions. Word has length 28 [2021-03-11 14:39:40,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:40,369 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7038 transitions. [2021-03-11 14:39:40,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7038 transitions. [2021-03-11 14:39:40,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:40,372 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:40,372 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:40,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2021-03-11 14:39:40,372 INFO L428 AbstractCegarLoop]: === Iteration 476 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:40,372 INFO L82 PathProgramCache]: Analyzing trace with hash -784549276, now seen corresponding path program 468 times [2021-03-11 14:39:40,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:40,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143646432] [2021-03-11 14:39:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:40,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:40,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:40,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:40,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:40,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:40,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:40,398 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:40,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:40,414 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:40,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:40,434 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:40,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:40,459 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:39:40,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:39:40,491 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:40,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:40,530 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:40,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:40,576 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:40,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:40,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143646432] [2021-03-11 14:39:40,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:40,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:40,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490019858] [2021-03-11 14:39:40,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:40,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:40,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:40,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:40,619 INFO L87 Difference]: Start difference. First operand 1576 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:40,859 INFO L93 Difference]: Finished difference Result 2925 states and 11640 transitions. [2021-03-11 14:39:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:40,860 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:40,865 INFO L225 Difference]: With dead ends: 2925 [2021-03-11 14:39:40,866 INFO L226 Difference]: Without dead ends: 2895 [2021-03-11 14:39:40,866 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 298.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:40,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-03-11 14:39:40,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 1563. [2021-03-11 14:39:40,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.4878361075544175) internal successors, (7010), 1562 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7010 transitions. [2021-03-11 14:39:40,915 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7010 transitions. Word has length 28 [2021-03-11 14:39:40,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:40,915 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7010 transitions. [2021-03-11 14:39:40,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:40,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7010 transitions. [2021-03-11 14:39:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:40,917 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:40,917 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:40,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2021-03-11 14:39:40,917 INFO L428 AbstractCegarLoop]: === Iteration 477 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:40,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:40,917 INFO L82 PathProgramCache]: Analyzing trace with hash -62674972, now seen corresponding path program 469 times [2021-03-11 14:39:40,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:40,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011739901] [2021-03-11 14:39:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:40,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:40,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:40,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:40,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:40,934 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:40,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:40,946 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:40,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:40,963 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:40,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:40,986 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:40,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:41,014 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:41,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:41,048 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:41,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:41,090 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:41,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:41,142 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:41,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:41,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011739901] [2021-03-11 14:39:41,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:41,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:41,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177609151] [2021-03-11 14:39:41,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:41,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:41,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:41,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:41,188 INFO L87 Difference]: Start difference. First operand 1563 states and 7010 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:41,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:41,428 INFO L93 Difference]: Finished difference Result 2905 states and 11603 transitions. [2021-03-11 14:39:41,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:41,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:41,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:41,435 INFO L225 Difference]: With dead ends: 2905 [2021-03-11 14:39:41,435 INFO L226 Difference]: Without dead ends: 2889 [2021-03-11 14:39:41,435 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 321.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:41,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2021-03-11 14:39:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 1571. [2021-03-11 14:39:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.478980891719745) internal successors, (7032), 1570 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7032 transitions. [2021-03-11 14:39:41,485 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7032 transitions. Word has length 28 [2021-03-11 14:39:41,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:41,485 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7032 transitions. [2021-03-11 14:39:41,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7032 transitions. [2021-03-11 14:39:41,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:41,487 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:41,487 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:41,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2021-03-11 14:39:41,487 INFO L428 AbstractCegarLoop]: === Iteration 478 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:41,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:41,487 INFO L82 PathProgramCache]: Analyzing trace with hash -634129778, now seen corresponding path program 470 times [2021-03-11 14:39:41,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:41,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644625766] [2021-03-11 14:39:41,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:41,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:41,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:41,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:41,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:41,504 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:41,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:41,516 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:41,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:41,534 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:41,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:41,557 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:41,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:41,585 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:41,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:41,620 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:41,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:41,662 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:41,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:41,709 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:41,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644625766] [2021-03-11 14:39:41,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:41,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:41,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641034409] [2021-03-11 14:39:41,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:41,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:41,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:41,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:41,752 INFO L87 Difference]: Start difference. First operand 1571 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:41,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:41,934 INFO L93 Difference]: Finished difference Result 2903 states and 11595 transitions. [2021-03-11 14:39:41,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:41,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:41,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:41,941 INFO L225 Difference]: With dead ends: 2903 [2021-03-11 14:39:41,941 INFO L226 Difference]: Without dead ends: 2885 [2021-03-11 14:39:41,941 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 308.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2021-03-11 14:39:41,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1567. [2021-03-11 14:39:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.483397190293742) internal successors, (7021), 1566 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7021 transitions. [2021-03-11 14:39:41,987 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7021 transitions. Word has length 28 [2021-03-11 14:39:41,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:41,987 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7021 transitions. [2021-03-11 14:39:41,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:41,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7021 transitions. [2021-03-11 14:39:41,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:41,989 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:41,990 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:41,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2021-03-11 14:39:41,990 INFO L428 AbstractCegarLoop]: === Iteration 479 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:41,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:41,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1135760352, now seen corresponding path program 471 times [2021-03-11 14:39:41,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:41,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976261541] [2021-03-11 14:39:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:41,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:41,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:41,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:42,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:42,006 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:42,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:42,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:42,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:42,033 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:42,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:42,054 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:42,079 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:42,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:42,112 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:42,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:42,151 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:42,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:42,198 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:42,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:42,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:42,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976261541] [2021-03-11 14:39:42,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:42,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:42,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325596196] [2021-03-11 14:39:42,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:42,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:42,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:42,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:42,242 INFO L87 Difference]: Start difference. First operand 1567 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:42,428 INFO L93 Difference]: Finished difference Result 2910 states and 11611 transitions. [2021-03-11 14:39:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:42,430 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:42,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:42,435 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:39:42,435 INFO L226 Difference]: Without dead ends: 2894 [2021-03-11 14:39:42,435 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 297.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:42,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-03-11 14:39:42,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 1573. [2021-03-11 14:39:42,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.473282442748092) internal successors, (7032), 1572 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7032 transitions. [2021-03-11 14:39:42,482 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7032 transitions. Word has length 28 [2021-03-11 14:39:42,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:42,482 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7032 transitions. [2021-03-11 14:39:42,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7032 transitions. [2021-03-11 14:39:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:42,484 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:42,484 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:42,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2021-03-11 14:39:42,484 INFO L428 AbstractCegarLoop]: === Iteration 480 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:42,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:42,484 INFO L82 PathProgramCache]: Analyzing trace with hash -217810162, now seen corresponding path program 472 times [2021-03-11 14:39:42,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:42,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39314541] [2021-03-11 14:39:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:42,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:42,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:42,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:42,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:42,500 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:42,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:42,511 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:42,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:42,527 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:42,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:42,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:42,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:42,573 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:42,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:42,605 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:42,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:42,645 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:42,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:42,693 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:42,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:42,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39314541] [2021-03-11 14:39:42,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:42,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:42,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951392282] [2021-03-11 14:39:42,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:42,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:42,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:42,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:42,737 INFO L87 Difference]: Start difference. First operand 1573 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:42,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:42,986 INFO L93 Difference]: Finished difference Result 2911 states and 11607 transitions. [2021-03-11 14:39:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:42,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:42,992 INFO L225 Difference]: With dead ends: 2911 [2021-03-11 14:39:42,992 INFO L226 Difference]: Without dead ends: 2888 [2021-03-11 14:39:42,992 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 298.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-03-11 14:39:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1567. [2021-03-11 14:39:43,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.480842911877395) internal successors, (7017), 1566 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:43,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7017 transitions. [2021-03-11 14:39:43,039 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7017 transitions. Word has length 28 [2021-03-11 14:39:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:43,039 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7017 transitions. [2021-03-11 14:39:43,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7017 transitions. [2021-03-11 14:39:43,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:43,041 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:43,041 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:43,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2021-03-11 14:39:43,041 INFO L428 AbstractCegarLoop]: === Iteration 481 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:43,041 INFO L82 PathProgramCache]: Analyzing trace with hash 2052522336, now seen corresponding path program 473 times [2021-03-11 14:39:43,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:43,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239534762] [2021-03-11 14:39:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:43,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:43,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:43,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:43,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:43,058 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:43,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:43,069 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:43,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:43,086 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:43,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:43,108 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:43,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:43,134 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:43,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:43,166 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:43,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:43,231 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:43,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:43,279 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:43,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:43,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:43,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239534762] [2021-03-11 14:39:43,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:43,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:43,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059488560] [2021-03-11 14:39:43,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:43,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:43,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:43,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:43,324 INFO L87 Difference]: Start difference. First operand 1567 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:43,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:43,503 INFO L93 Difference]: Finished difference Result 2904 states and 11593 transitions. [2021-03-11 14:39:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:43,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:43,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:43,510 INFO L225 Difference]: With dead ends: 2904 [2021-03-11 14:39:43,510 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:39:43,510 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 327.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:43,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:39:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1571. [2021-03-11 14:39:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.473885350318471) internal successors, (7024), 1570 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7024 transitions. [2021-03-11 14:39:43,557 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7024 transitions. Word has length 28 [2021-03-11 14:39:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:43,557 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7024 transitions. [2021-03-11 14:39:43,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:43,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7024 transitions. [2021-03-11 14:39:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:43,559 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:43,559 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:43,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2021-03-11 14:39:43,559 INFO L428 AbstractCegarLoop]: === Iteration 482 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:43,559 INFO L82 PathProgramCache]: Analyzing trace with hash -753039964, now seen corresponding path program 474 times [2021-03-11 14:39:43,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:43,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214901924] [2021-03-11 14:39:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:43,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:43,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:43,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:43,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:43,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:43,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:43,586 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:43,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:43,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:43,622 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:43,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:43,648 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:43,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:43,679 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:43,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:43,743 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:43,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:43,790 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:43,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:43,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:43,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214901924] [2021-03-11 14:39:43,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:43,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:43,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120541324] [2021-03-11 14:39:43,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:43,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:43,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:43,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:43,833 INFO L87 Difference]: Start difference. First operand 1571 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:44,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:44,077 INFO L93 Difference]: Finished difference Result 2907 states and 11595 transitions. [2021-03-11 14:39:44,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:44,078 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:44,084 INFO L225 Difference]: With dead ends: 2907 [2021-03-11 14:39:44,084 INFO L226 Difference]: Without dead ends: 2882 [2021-03-11 14:39:44,084 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 319.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-03-11 14:39:44,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1563. [2021-03-11 14:39:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.48527528809219) internal successors, (7006), 1562 states have internal predecessors, (7006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7006 transitions. [2021-03-11 14:39:44,130 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7006 transitions. Word has length 28 [2021-03-11 14:39:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:44,130 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7006 transitions. [2021-03-11 14:39:44,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7006 transitions. [2021-03-11 14:39:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:44,132 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:44,132 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:44,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2021-03-11 14:39:44,132 INFO L428 AbstractCegarLoop]: === Iteration 483 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:44,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:44,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1447736232, now seen corresponding path program 475 times [2021-03-11 14:39:44,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:44,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441554767] [2021-03-11 14:39:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:44,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:44,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:44,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:44,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:44,148 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:44,159 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:44,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:44,175 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:44,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:44,195 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:44,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:44,221 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:44,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:44,273 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:44,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:44,337 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:44,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:44,384 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:44,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:44,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441554767] [2021-03-11 14:39:44,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:44,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:44,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462247799] [2021-03-11 14:39:44,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:44,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:44,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:44,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:44,428 INFO L87 Difference]: Start difference. First operand 1563 states and 7006 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:44,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:44,590 INFO L93 Difference]: Finished difference Result 2912 states and 11614 transitions. [2021-03-11 14:39:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:44,591 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:44,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:44,597 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:39:44,597 INFO L226 Difference]: Without dead ends: 2894 [2021-03-11 14:39:44,597 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 346.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:44,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-03-11 14:39:44,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 1571. [2021-03-11 14:39:44,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.476433121019109) internal successors, (7028), 1570 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7028 transitions. [2021-03-11 14:39:44,644 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7028 transitions. Word has length 28 [2021-03-11 14:39:44,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:44,644 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7028 transitions. [2021-03-11 14:39:44,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7028 transitions. [2021-03-11 14:39:44,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:44,646 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:44,646 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:44,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2021-03-11 14:39:44,646 INFO L428 AbstractCegarLoop]: === Iteration 484 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:44,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:44,646 INFO L82 PathProgramCache]: Analyzing trace with hash -613123570, now seen corresponding path program 476 times [2021-03-11 14:39:44,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:44,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462507789] [2021-03-11 14:39:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:44,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:44,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:44,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:44,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:44,662 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:44,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:44,673 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:44,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:44,690 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:44,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:44,711 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:44,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:44,737 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:44,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:44,791 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:44,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:44,855 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:44,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:44,902 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:44,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:44,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462507789] [2021-03-11 14:39:44,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:44,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:44,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988241681] [2021-03-11 14:39:44,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:44,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:44,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:44,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:44,946 INFO L87 Difference]: Start difference. First operand 1571 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:45,106 INFO L93 Difference]: Finished difference Result 2908 states and 11602 transitions. [2021-03-11 14:39:45,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:45,112 INFO L225 Difference]: With dead ends: 2908 [2021-03-11 14:39:45,113 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:39:45,113 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 344.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:45,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:39:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1567. [2021-03-11 14:39:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.480842911877395) internal successors, (7017), 1566 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7017 transitions. [2021-03-11 14:39:45,159 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7017 transitions. Word has length 28 [2021-03-11 14:39:45,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:45,159 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7017 transitions. [2021-03-11 14:39:45,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:45,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7017 transitions. [2021-03-11 14:39:45,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:45,162 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:45,162 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:45,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2021-03-11 14:39:45,162 INFO L428 AbstractCegarLoop]: === Iteration 485 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:45,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:45,162 INFO L82 PathProgramCache]: Analyzing trace with hash 374650852, now seen corresponding path program 477 times [2021-03-11 14:39:45,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:45,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186570306] [2021-03-11 14:39:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:45,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:45,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:45,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:45,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:45,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:45,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:45,190 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:45,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:45,207 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:45,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:45,227 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:45,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:45,253 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:45,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:45,307 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:45,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:45,347 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:45,394 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:45,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:45,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:45,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186570306] [2021-03-11 14:39:45,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:45,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:45,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603021788] [2021-03-11 14:39:45,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:45,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:45,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:45,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:45,440 INFO L87 Difference]: Start difference. First operand 1567 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:45,609 INFO L93 Difference]: Finished difference Result 2918 states and 11625 transitions. [2021-03-11 14:39:45,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:45,616 INFO L225 Difference]: With dead ends: 2918 [2021-03-11 14:39:45,616 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:39:45,616 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 332.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:39:45,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1574. [2021-03-11 14:39:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4691671964399236) internal successors, (7030), 1573 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:45,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7030 transitions. [2021-03-11 14:39:45,662 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7030 transitions. Word has length 28 [2021-03-11 14:39:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:45,662 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7030 transitions. [2021-03-11 14:39:45,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7030 transitions. [2021-03-11 14:39:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:45,664 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:45,664 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:45,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2021-03-11 14:39:45,664 INFO L428 AbstractCegarLoop]: === Iteration 486 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:45,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:45,664 INFO L82 PathProgramCache]: Analyzing trace with hash -196803954, now seen corresponding path program 478 times [2021-03-11 14:39:45,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:45,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735506753] [2021-03-11 14:39:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:45,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:45,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:45,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:45,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:45,680 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:45,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:45,691 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:45,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:45,707 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:45,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:45,728 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:45,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:45,754 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:45,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:45,807 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:45,848 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:45,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:45,895 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:45,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:45,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735506753] [2021-03-11 14:39:45,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:45,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:45,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134820873] [2021-03-11 14:39:45,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:45,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:45,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:45,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:45,940 INFO L87 Difference]: Start difference. First operand 1574 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:46,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:46,109 INFO L93 Difference]: Finished difference Result 2917 states and 11616 transitions. [2021-03-11 14:39:46,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:46,110 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:46,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:46,116 INFO L225 Difference]: With dead ends: 2917 [2021-03-11 14:39:46,116 INFO L226 Difference]: Without dead ends: 2893 [2021-03-11 14:39:46,116 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 324.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-03-11 14:39:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1567. [2021-03-11 14:39:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.478288633461047) internal successors, (7013), 1566 states have internal predecessors, (7013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:46,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7013 transitions. [2021-03-11 14:39:46,163 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7013 transitions. Word has length 28 [2021-03-11 14:39:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:46,163 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7013 transitions. [2021-03-11 14:39:46,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:46,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7013 transitions. [2021-03-11 14:39:46,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:46,165 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:46,165 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:46,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2021-03-11 14:39:46,165 INFO L428 AbstractCegarLoop]: === Iteration 487 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:46,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:46,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1148353372, now seen corresponding path program 479 times [2021-03-11 14:39:46,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:46,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996227686] [2021-03-11 14:39:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:46,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:46,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:46,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:46,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:46,182 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:46,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:46,194 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:46,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:46,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:46,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:46,232 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:46,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:46,259 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:46,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:46,313 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:46,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:46,379 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:46,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:46,426 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:46,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:46,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:46,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996227686] [2021-03-11 14:39:46,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:46,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:46,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913071240] [2021-03-11 14:39:46,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:46,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:46,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:46,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:46,470 INFO L87 Difference]: Start difference. First operand 1567 states and 7013 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:46,647 INFO L93 Difference]: Finished difference Result 2907 states and 11596 transitions. [2021-03-11 14:39:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:46,648 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:46,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:46,654 INFO L225 Difference]: With dead ends: 2907 [2021-03-11 14:39:46,654 INFO L226 Difference]: Without dead ends: 2893 [2021-03-11 14:39:46,654 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 347.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:46,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-03-11 14:39:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1571. [2021-03-11 14:39:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.471337579617835) internal successors, (7020), 1570 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7020 transitions. [2021-03-11 14:39:46,700 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7020 transitions. Word has length 28 [2021-03-11 14:39:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:46,700 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7020 transitions. [2021-03-11 14:39:46,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7020 transitions. [2021-03-11 14:39:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:46,703 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:46,703 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:46,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2021-03-11 14:39:46,703 INFO L428 AbstractCegarLoop]: === Iteration 488 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:46,703 INFO L82 PathProgramCache]: Analyzing trace with hash 341051624, now seen corresponding path program 480 times [2021-03-11 14:39:46,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:46,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082346618] [2021-03-11 14:39:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:46,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:46,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:46,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:46,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:46,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:46,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:46,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:46,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:46,746 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:46,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:46,766 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:39:46,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:39:46,791 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:46,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:46,844 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:46,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:46,908 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:46,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:46,955 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:46,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:46,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082346618] [2021-03-11 14:39:46,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:46,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:46,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351388227] [2021-03-11 14:39:46,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:46,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:46,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:46,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:46,998 INFO L87 Difference]: Start difference. First operand 1571 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:47,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:47,175 INFO L93 Difference]: Finished difference Result 2910 states and 11598 transitions. [2021-03-11 14:39:47,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:47,176 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:47,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:47,182 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:39:47,182 INFO L226 Difference]: Without dead ends: 2877 [2021-03-11 14:39:47,182 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 340.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2021-03-11 14:39:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 1555. [2021-03-11 14:39:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 4.4967824967824965) internal successors, (6988), 1554 states have internal predecessors, (6988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 6988 transitions. [2021-03-11 14:39:47,229 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 6988 transitions. Word has length 28 [2021-03-11 14:39:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:47,229 INFO L480 AbstractCegarLoop]: Abstraction has 1555 states and 6988 transitions. [2021-03-11 14:39:47,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 6988 transitions. [2021-03-11 14:39:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:47,231 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:47,231 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:47,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2021-03-11 14:39:47,231 INFO L428 AbstractCegarLoop]: === Iteration 489 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:47,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1827506600, now seen corresponding path program 481 times [2021-03-11 14:39:47,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:47,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542958342] [2021-03-11 14:39:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:47,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:47,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:47,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:47,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:47,248 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:47,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:47,258 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:47,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:47,274 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:47,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:47,294 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:47,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:47,336 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:47,390 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:47,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:47,457 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:47,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:47,505 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:47,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:47,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542958342] [2021-03-11 14:39:47,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:47,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:47,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220601790] [2021-03-11 14:39:47,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:47,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:47,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:47,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:47,555 INFO L87 Difference]: Start difference. First operand 1555 states and 6988 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:47,725 INFO L93 Difference]: Finished difference Result 2973 states and 11790 transitions. [2021-03-11 14:39:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:47,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:47,731 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:39:47,732 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:39:47,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 366.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:47,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:39:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1581. [2021-03-11 14:39:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.483544303797468) internal successors, (7084), 1580 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:47,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7084 transitions. [2021-03-11 14:39:47,778 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7084 transitions. Word has length 28 [2021-03-11 14:39:47,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:47,778 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7084 transitions. [2021-03-11 14:39:47,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:47,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7084 transitions. [2021-03-11 14:39:47,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:47,780 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:47,780 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:47,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2021-03-11 14:39:47,780 INFO L428 AbstractCegarLoop]: === Iteration 490 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:47,780 INFO L82 PathProgramCache]: Analyzing trace with hash -978055700, now seen corresponding path program 482 times [2021-03-11 14:39:47,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:47,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668461573] [2021-03-11 14:39:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:47,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:47,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:47,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:47,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:47,796 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:47,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:47,807 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:47,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:47,822 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:47,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:47,842 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:47,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:47,888 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:47,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:47,942 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:47,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:48,003 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:39:48,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:39:48,050 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:48,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:48,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668461573] [2021-03-11 14:39:48,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:48,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:48,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87761661] [2021-03-11 14:39:48,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:48,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:48,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:48,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:48,093 INFO L87 Difference]: Start difference. First operand 1581 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:48,223 INFO L93 Difference]: Finished difference Result 2978 states and 11794 transitions. [2021-03-11 14:39:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:48,224 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:48,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:48,229 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:39:48,229 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:39:48,230 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 326.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:48,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:39:48,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1575. [2021-03-11 14:39:48,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.489834815756035) internal successors, (7067), 1574 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7067 transitions. [2021-03-11 14:39:48,276 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7067 transitions. Word has length 28 [2021-03-11 14:39:48,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:48,276 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7067 transitions. [2021-03-11 14:39:48,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7067 transitions. [2021-03-11 14:39:48,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:48,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:48,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:48,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2021-03-11 14:39:48,278 INFO L428 AbstractCegarLoop]: === Iteration 491 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:48,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:48,279 INFO L82 PathProgramCache]: Analyzing trace with hash -856519738, now seen corresponding path program 483 times [2021-03-11 14:39:48,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:48,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132846994] [2021-03-11 14:39:48,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:48,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:48,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:48,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:48,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:48,295 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:48,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:48,306 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:48,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:48,321 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:48,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:48,340 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:48,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:48,381 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:48,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:48,435 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:48,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:48,497 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:48,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:48,542 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:48,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:48,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:48,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132846994] [2021-03-11 14:39:48,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:48,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:48,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079839556] [2021-03-11 14:39:48,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:48,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:48,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:48,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:48,583 INFO L87 Difference]: Start difference. First operand 1575 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:48,747 INFO L93 Difference]: Finished difference Result 2970 states and 11779 transitions. [2021-03-11 14:39:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:48,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:48,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:48,754 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:39:48,754 INFO L226 Difference]: Without dead ends: 2955 [2021-03-11 14:39:48,754 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 349.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:48,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2021-03-11 14:39:48,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1580. [2021-03-11 14:39:48,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.481317289423686) internal successors, (7076), 1579 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7076 transitions. [2021-03-11 14:39:48,801 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7076 transitions. Word has length 28 [2021-03-11 14:39:48,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:48,801 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7076 transitions. [2021-03-11 14:39:48,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:48,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7076 transitions. [2021-03-11 14:39:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:48,803 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:48,803 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:48,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2021-03-11 14:39:48,803 INFO L428 AbstractCegarLoop]: === Iteration 492 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:48,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1377587756, now seen corresponding path program 484 times [2021-03-11 14:39:48,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:48,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647768104] [2021-03-11 14:39:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:48,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:48,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:48,819 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:48,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:48,830 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:48,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:48,845 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:48,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:48,865 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:48,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:48,907 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:48,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:48,962 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:48,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:49,026 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:49,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:49,073 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:49,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:49,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647768104] [2021-03-11 14:39:49,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:49,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:49,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964188918] [2021-03-11 14:39:49,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:49,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:49,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:49,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:49,116 INFO L87 Difference]: Start difference. First operand 1580 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:49,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:49,289 INFO L93 Difference]: Finished difference Result 2973 states and 11780 transitions. [2021-03-11 14:39:49,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:49,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:49,295 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:39:49,295 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:39:49,295 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 362.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:49,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:39:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1575. [2021-03-11 14:39:49,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.486658195679797) internal successors, (7062), 1574 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7062 transitions. [2021-03-11 14:39:49,342 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7062 transitions. Word has length 28 [2021-03-11 14:39:49,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:49,342 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7062 transitions. [2021-03-11 14:39:49,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7062 transitions. [2021-03-11 14:39:49,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:49,344 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:49,344 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:49,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2021-03-11 14:39:49,344 INFO L428 AbstractCegarLoop]: === Iteration 493 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:49,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:49,344 INFO L82 PathProgramCache]: Analyzing trace with hash -440200122, now seen corresponding path program 485 times [2021-03-11 14:39:49,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:49,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558127037] [2021-03-11 14:39:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:49,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:49,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:49,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:49,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:49,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:49,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:49,371 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:49,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:49,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:49,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:49,406 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:49,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:49,447 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:49,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:49,500 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:39:49,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:39:49,539 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:39:49,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:39:49,587 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:49,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:49,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558127037] [2021-03-11 14:39:49,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:49,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:49,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749418605] [2021-03-11 14:39:49,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:49,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:49,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:49,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:49,629 INFO L87 Difference]: Start difference. First operand 1575 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:49,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:49,757 INFO L93 Difference]: Finished difference Result 2985 states and 11804 transitions. [2021-03-11 14:39:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:49,758 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:49,764 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:39:49,764 INFO L226 Difference]: Without dead ends: 2965 [2021-03-11 14:39:49,764 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 298.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2021-03-11 14:39:49,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1585. [2021-03-11 14:39:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.469065656565657) internal successors, (7079), 1584 states have internal predecessors, (7079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:49,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7079 transitions. [2021-03-11 14:39:49,810 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7079 transitions. Word has length 28 [2021-03-11 14:39:49,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:49,811 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7079 transitions. [2021-03-11 14:39:49,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7079 transitions. [2021-03-11 14:39:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:49,813 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:49,813 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:49,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2021-03-11 14:39:49,813 INFO L428 AbstractCegarLoop]: === Iteration 494 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:49,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:49,813 INFO L82 PathProgramCache]: Analyzing trace with hash 304502376, now seen corresponding path program 486 times [2021-03-11 14:39:49,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:49,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688633741] [2021-03-11 14:39:49,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:49,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:49,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:49,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:49,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:49,830 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:49,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:49,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:49,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:49,856 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:49,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:49,877 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:49,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:49,919 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:49,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:49,975 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:39:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:39:50,015 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:50,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:50,061 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:50,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:50,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688633741] [2021-03-11 14:39:50,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:50,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:50,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952629539] [2021-03-11 14:39:50,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:50,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:50,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:50,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:50,104 INFO L87 Difference]: Start difference. First operand 1585 states and 7079 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:50,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:50,290 INFO L93 Difference]: Finished difference Result 2983 states and 11792 transitions. [2021-03-11 14:39:50,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:50,291 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:50,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:50,296 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:39:50,296 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:39:50,297 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 339.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:50,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:39:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1568. [2021-03-11 14:39:50,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.494575622208041) internal successors, (7043), 1567 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7043 transitions. [2021-03-11 14:39:50,343 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7043 transitions. Word has length 28 [2021-03-11 14:39:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:50,343 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7043 transitions. [2021-03-11 14:39:50,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7043 transitions. [2021-03-11 14:39:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:50,346 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:50,346 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:50,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2021-03-11 14:39:50,346 INFO L428 AbstractCegarLoop]: === Iteration 495 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:50,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1321160334, now seen corresponding path program 487 times [2021-03-11 14:39:50,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:50,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645675179] [2021-03-11 14:39:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:50,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:50,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:50,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:50,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:50,362 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:50,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:50,373 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:50,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:50,388 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:50,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:50,409 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:50,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:50,452 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:50,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:50,502 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:50,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:50,565 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:50,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:50,611 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:50,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:50,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645675179] [2021-03-11 14:39:50,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:50,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:50,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335585777] [2021-03-11 14:39:50,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:50,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:50,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:50,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:50,655 INFO L87 Difference]: Start difference. First operand 1568 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:50,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:50,823 INFO L93 Difference]: Finished difference Result 2961 states and 11754 transitions. [2021-03-11 14:39:50,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:50,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:50,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:50,830 INFO L225 Difference]: With dead ends: 2961 [2021-03-11 14:39:50,830 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:39:50,830 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 353.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:39:50,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1579. [2021-03-11 14:39:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.481622306717364) internal successors, (7072), 1578 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7072 transitions. [2021-03-11 14:39:50,877 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7072 transitions. Word has length 28 [2021-03-11 14:39:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:50,877 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7072 transitions. [2021-03-11 14:39:50,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7072 transitions. [2021-03-11 14:39:50,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:50,880 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:50,880 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:50,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2021-03-11 14:39:50,880 INFO L428 AbstractCegarLoop]: === Iteration 496 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:50,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:50,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1484401966, now seen corresponding path program 488 times [2021-03-11 14:39:50,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:50,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322899169] [2021-03-11 14:39:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:50,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:50,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:50,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:50,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:50,896 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:50,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:50,907 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:50,923 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:50,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:50,943 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:50,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:50,986 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:50,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:51,036 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:51,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:51,100 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:39:51,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:39:51,147 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:51,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:51,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322899169] [2021-03-11 14:39:51,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:51,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:51,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250139964] [2021-03-11 14:39:51,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:51,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:51,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:51,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:51,191 INFO L87 Difference]: Start difference. First operand 1579 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:51,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:51,341 INFO L93 Difference]: Finished difference Result 2966 states and 11758 transitions. [2021-03-11 14:39:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:51,342 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:51,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:51,350 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:39:51,350 INFO L226 Difference]: Without dead ends: 2940 [2021-03-11 14:39:51,350 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 324.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-03-11 14:39:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1573. [2021-03-11 14:39:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.488549618320611) internal successors, (7056), 1572 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7056 transitions. [2021-03-11 14:39:51,399 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7056 transitions. Word has length 28 [2021-03-11 14:39:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:51,399 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7056 transitions. [2021-03-11 14:39:51,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7056 transitions. [2021-03-11 14:39:51,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:51,401 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:51,401 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:51,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2021-03-11 14:39:51,401 INFO L428 AbstractCegarLoop]: === Iteration 497 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:51,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:51,401 INFO L82 PathProgramCache]: Analyzing trace with hash -825010426, now seen corresponding path program 489 times [2021-03-11 14:39:51,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:51,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068395063] [2021-03-11 14:39:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:51,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:51,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:51,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:51,418 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:51,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:51,429 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:51,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:51,444 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:51,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:51,465 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:51,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:51,508 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:51,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:51,559 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:51,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:51,598 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:51,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:51,644 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:51,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:51,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:51,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068395063] [2021-03-11 14:39:51,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:51,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:51,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734614211] [2021-03-11 14:39:51,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:51,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:51,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:51,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:51,688 INFO L87 Difference]: Start difference. First operand 1573 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:51,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:51,856 INFO L93 Difference]: Finished difference Result 2953 states and 11733 transitions. [2021-03-11 14:39:51,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:51,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:51,863 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:39:51,863 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:39:51,863 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 330.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:39:51,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1577. [2021-03-11 14:39:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.481598984771574) internal successors, (7063), 1576 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7063 transitions. [2021-03-11 14:39:51,910 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7063 transitions. Word has length 28 [2021-03-11 14:39:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:51,910 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7063 transitions. [2021-03-11 14:39:51,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7063 transitions. [2021-03-11 14:39:51,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:51,912 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:51,912 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:51,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2021-03-11 14:39:51,912 INFO L428 AbstractCegarLoop]: === Iteration 498 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:51,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:51,912 INFO L82 PathProgramCache]: Analyzing trace with hash -651762734, now seen corresponding path program 490 times [2021-03-11 14:39:51,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:51,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619504944] [2021-03-11 14:39:51,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:51,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:51,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:51,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:51,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:51,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:51,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:51,939 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:51,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:51,955 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:51,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:51,975 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:51,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:52,018 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:52,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:52,068 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:52,106 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:52,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:52,152 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:52,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:52,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619504944] [2021-03-11 14:39:52,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:52,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:52,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589742773] [2021-03-11 14:39:52,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:52,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:52,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:52,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:52,196 INFO L87 Difference]: Start difference. First operand 1577 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:52,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:52,413 INFO L93 Difference]: Finished difference Result 2952 states and 11727 transitions. [2021-03-11 14:39:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:52,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:52,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:52,420 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:39:52,420 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:39:52,420 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 330.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:52,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:39:52,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1573. [2021-03-11 14:39:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.486005089058525) internal successors, (7052), 1572 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7052 transitions. [2021-03-11 14:39:52,466 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7052 transitions. Word has length 28 [2021-03-11 14:39:52,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:52,467 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7052 transitions. [2021-03-11 14:39:52,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7052 transitions. [2021-03-11 14:39:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:52,469 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:52,469 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:52,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2021-03-11 14:39:52,469 INFO L428 AbstractCegarLoop]: === Iteration 499 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:52,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:52,469 INFO L82 PathProgramCache]: Analyzing trace with hash -408690810, now seen corresponding path program 491 times [2021-03-11 14:39:52,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:52,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133640295] [2021-03-11 14:39:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:52,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:52,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:52,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:52,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:52,486 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:52,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:52,497 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:52,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:52,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:52,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:52,533 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:52,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:52,576 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:52,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:52,629 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:52,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:52,689 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:39:52,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:39:52,738 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:52,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:52,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133640295] [2021-03-11 14:39:52,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:52,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:52,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325591851] [2021-03-11 14:39:52,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:52,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:52,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:52,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:52,781 INFO L87 Difference]: Start difference. First operand 1573 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:52,951 INFO L93 Difference]: Finished difference Result 2964 states and 11749 transitions. [2021-03-11 14:39:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:52,952 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:52,958 INFO L225 Difference]: With dead ends: 2964 [2021-03-11 14:39:52,958 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:39:52,958 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 326.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:52,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:39:53,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1578. [2021-03-11 14:39:53,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.476854787571338) internal successors, (7060), 1577 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:53,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7060 transitions. [2021-03-11 14:39:53,005 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7060 transitions. Word has length 28 [2021-03-11 14:39:53,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:53,005 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7060 transitions. [2021-03-11 14:39:53,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:53,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7060 transitions. [2021-03-11 14:39:53,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:53,007 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:53,007 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:53,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2021-03-11 14:39:53,007 INFO L428 AbstractCegarLoop]: === Iteration 500 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:53,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:53,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1724848114, now seen corresponding path program 492 times [2021-03-11 14:39:53,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:53,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132589053] [2021-03-11 14:39:53,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:53,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:53,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:53,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:53,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:53,024 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:53,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:53,035 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:53,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:53,051 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:53,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:53,071 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:53,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:53,115 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:53,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:53,165 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:53,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:53,224 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:53,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:53,270 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:53,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132589053] [2021-03-11 14:39:53,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:53,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:53,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971032904] [2021-03-11 14:39:53,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:53,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:53,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:53,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:53,314 INFO L87 Difference]: Start difference. First operand 1578 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:53,496 INFO L93 Difference]: Finished difference Result 2958 states and 11733 transitions. [2021-03-11 14:39:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:53,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:53,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:53,503 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:39:53,503 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:39:53,503 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 354.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:39:53,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1568. [2021-03-11 14:39:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.491384811742183) internal successors, (7038), 1567 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:53,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7038 transitions. [2021-03-11 14:39:53,552 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7038 transitions. Word has length 28 [2021-03-11 14:39:53,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:53,552 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7038 transitions. [2021-03-11 14:39:53,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7038 transitions. [2021-03-11 14:39:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:53,554 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:53,554 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:53,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2021-03-11 14:39:53,554 INFO L428 AbstractCegarLoop]: === Iteration 501 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:53,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:53,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1331663438, now seen corresponding path program 493 times [2021-03-11 14:39:53,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:53,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146930637] [2021-03-11 14:39:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:53,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:53,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:53,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:53,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:53,571 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:53,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:53,582 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:53,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:53,598 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:53,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:53,619 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:53,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:53,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:53,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:53,719 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:53,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:53,786 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:53,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:53,833 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:53,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:53,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:53,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146930637] [2021-03-11 14:39:53,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:53,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:53,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415726148] [2021-03-11 14:39:53,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:53,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:53,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:53,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:53,877 INFO L87 Difference]: Start difference. First operand 1568 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:54,075 INFO L93 Difference]: Finished difference Result 2953 states and 11734 transitions. [2021-03-11 14:39:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:54,076 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:54,082 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:39:54,082 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:39:54,082 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 368.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:39:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1577. [2021-03-11 14:39:54,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.480964467005077) internal successors, (7062), 1576 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7062 transitions. [2021-03-11 14:39:54,128 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7062 transitions. Word has length 28 [2021-03-11 14:39:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:54,129 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7062 transitions. [2021-03-11 14:39:54,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7062 transitions. [2021-03-11 14:39:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:54,131 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:54,131 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:54,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2021-03-11 14:39:54,131 INFO L428 AbstractCegarLoop]: === Iteration 502 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:54,131 INFO L82 PathProgramCache]: Analyzing trace with hash -729196364, now seen corresponding path program 494 times [2021-03-11 14:39:54,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:54,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549463466] [2021-03-11 14:39:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:54,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:54,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:54,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:54,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:54,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:54,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:54,159 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:54,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:54,176 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:54,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:54,198 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:54,243 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:54,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:54,300 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:54,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:54,366 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:54,415 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:54,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:54,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:54,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549463466] [2021-03-11 14:39:54,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:54,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:54,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159018672] [2021-03-11 14:39:54,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:54,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:54,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:54,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:54,484 INFO L87 Difference]: Start difference. First operand 1577 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:54,720 INFO L93 Difference]: Finished difference Result 2956 states and 11735 transitions. [2021-03-11 14:39:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:54,721 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:54,728 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:39:54,729 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:39:54,729 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 427.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:54,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:39:54,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1572. [2021-03-11 14:39:54,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.486950986632718) internal successors, (7049), 1571 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7049 transitions. [2021-03-11 14:39:54,786 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7049 transitions. Word has length 28 [2021-03-11 14:39:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:54,787 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7049 transitions. [2021-03-11 14:39:54,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7049 transitions. [2021-03-11 14:39:54,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:54,789 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:54,789 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:54,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2021-03-11 14:39:54,789 INFO L428 AbstractCegarLoop]: === Iteration 503 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:54,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1869519016, now seen corresponding path program 495 times [2021-03-11 14:39:54,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:54,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376686188] [2021-03-11 14:39:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:54,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:54,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:54,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:54,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:54,806 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:54,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:54,817 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:54,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:54,834 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:54,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:54,855 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:54,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:54,898 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:54,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:54,953 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:54,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:54,992 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:54,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:55,039 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:55,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:55,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376686188] [2021-03-11 14:39:55,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:55,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:55,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553317496] [2021-03-11 14:39:55,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:55,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:55,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:55,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:55,083 INFO L87 Difference]: Start difference. First operand 1572 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:55,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:55,253 INFO L93 Difference]: Finished difference Result 2948 states and 11719 transitions. [2021-03-11 14:39:55,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:55,254 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:55,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:55,260 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:39:55,260 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:39:55,260 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 340.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:39:55,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1576. [2021-03-11 14:39:55,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.48) internal successors, (7056), 1575 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7056 transitions. [2021-03-11 14:39:55,307 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7056 transitions. Word has length 28 [2021-03-11 14:39:55,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:55,307 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7056 transitions. [2021-03-11 14:39:55,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7056 transitions. [2021-03-11 14:39:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:55,309 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:55,309 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:55,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2021-03-11 14:39:55,309 INFO L428 AbstractCegarLoop]: === Iteration 504 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:55,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:55,309 INFO L82 PathProgramCache]: Analyzing trace with hash 2042766708, now seen corresponding path program 496 times [2021-03-11 14:39:55,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:55,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282284737] [2021-03-11 14:39:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:55,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:55,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:55,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:55,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:55,326 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:55,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:55,337 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:55,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:55,353 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:55,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:55,374 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:55,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:55,418 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:55,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:55,474 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:39:55,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:39:55,514 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:55,565 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:55,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:55,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282284737] [2021-03-11 14:39:55,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:55,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:55,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348602326] [2021-03-11 14:39:55,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:55,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:55,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:55,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:55,613 INFO L87 Difference]: Start difference. First operand 1576 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:55,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:55,792 INFO L93 Difference]: Finished difference Result 2947 states and 11713 transitions. [2021-03-11 14:39:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:55,793 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:55,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:55,799 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:39:55,799 INFO L226 Difference]: Without dead ends: 2929 [2021-03-11 14:39:55,799 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 349.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:55,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-03-11 14:39:55,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1572. [2021-03-11 14:39:55,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.484404837683004) internal successors, (7045), 1571 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7045 transitions. [2021-03-11 14:39:55,845 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7045 transitions. Word has length 28 [2021-03-11 14:39:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:55,845 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7045 transitions. [2021-03-11 14:39:55,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7045 transitions. [2021-03-11 14:39:55,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:55,848 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:55,848 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:55,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2021-03-11 14:39:55,848 INFO L428 AbstractCegarLoop]: === Iteration 505 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:55,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:55,848 INFO L82 PathProgramCache]: Analyzing trace with hash 346514792, now seen corresponding path program 497 times [2021-03-11 14:39:55,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:55,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077459620] [2021-03-11 14:39:55,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:55,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:55,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:55,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:55,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:55,865 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:55,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:55,876 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:55,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:55,892 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:55,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:55,913 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:55,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:55,956 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:55,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:56,011 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:56,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:56,079 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:56,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:56,128 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:56,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:56,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077459620] [2021-03-11 14:39:56,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:56,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:56,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321082757] [2021-03-11 14:39:56,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:56,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:56,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:56,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:56,173 INFO L87 Difference]: Start difference. First operand 1572 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:56,394 INFO L93 Difference]: Finished difference Result 2954 states and 11727 transitions. [2021-03-11 14:39:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:56,395 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:56,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:56,401 INFO L225 Difference]: With dead ends: 2954 [2021-03-11 14:39:56,401 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:39:56,401 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 378.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:56,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:39:56,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1576. [2021-03-11 14:39:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.477460317460317) internal successors, (7052), 1575 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7052 transitions. [2021-03-11 14:39:56,448 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7052 transitions. Word has length 28 [2021-03-11 14:39:56,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:56,448 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7052 transitions. [2021-03-11 14:39:56,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7052 transitions. [2021-03-11 14:39:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:56,450 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:56,450 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:56,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2021-03-11 14:39:56,450 INFO L428 AbstractCegarLoop]: === Iteration 506 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:56,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1714345010, now seen corresponding path program 498 times [2021-03-11 14:39:56,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:56,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042223665] [2021-03-11 14:39:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:56,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:56,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:56,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:56,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:56,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:56,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:56,478 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:56,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:56,495 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:56,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:56,516 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:56,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:56,561 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:39:56,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:39:56,616 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:56,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:56,683 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:56,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:56,731 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:56,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:56,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042223665] [2021-03-11 14:39:56,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:56,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:56,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047142957] [2021-03-11 14:39:56,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:56,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:56,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:56,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:56,775 INFO L87 Difference]: Start difference. First operand 1576 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:56,952 INFO L93 Difference]: Finished difference Result 2950 states and 11715 transitions. [2021-03-11 14:39:56,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:56,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:56,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:56,959 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:39:56,959 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:39:56,959 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 372.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:39:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1568. [2021-03-11 14:39:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.488832163369496) internal successors, (7034), 1567 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7034 transitions. [2021-03-11 14:39:57,006 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7034 transitions. Word has length 28 [2021-03-11 14:39:57,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:57,006 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7034 transitions. [2021-03-11 14:39:57,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:57,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7034 transitions. [2021-03-11 14:39:57,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:57,008 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:57,008 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:57,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2021-03-11 14:39:57,008 INFO L428 AbstractCegarLoop]: === Iteration 507 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:57,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:57,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1452892654, now seen corresponding path program 499 times [2021-03-11 14:39:57,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:57,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223857874] [2021-03-11 14:39:57,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:57,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:57,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:57,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:57,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:57,025 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:57,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:57,036 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:57,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:57,053 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:57,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:57,075 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:57,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:57,119 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:57,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:57,177 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:39:57,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:39:57,220 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:39:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:39:57,270 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:57,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:57,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223857874] [2021-03-11 14:39:57,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:57,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:57,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568494255] [2021-03-11 14:39:57,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:57,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:57,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:57,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:57,315 INFO L87 Difference]: Start difference. First operand 1568 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:57,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:57,450 INFO L93 Difference]: Finished difference Result 2981 states and 11788 transitions. [2021-03-11 14:39:57,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:57,451 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:57,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:57,457 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:39:57,457 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:39:57,457 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 321.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:39:57,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1584. [2021-03-11 14:39:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.466835123183828) internal successors, (7071), 1583 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:57,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7071 transitions. [2021-03-11 14:39:57,503 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7071 transitions. Word has length 28 [2021-03-11 14:39:57,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:57,504 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7071 transitions. [2021-03-11 14:39:57,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:57,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7071 transitions. [2021-03-11 14:39:57,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:57,506 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:57,506 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:57,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2021-03-11 14:39:57,506 INFO L428 AbstractCegarLoop]: === Iteration 508 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:57,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:57,506 INFO L82 PathProgramCache]: Analyzing trace with hash -708190156, now seen corresponding path program 500 times [2021-03-11 14:39:57,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:57,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873073134] [2021-03-11 14:39:57,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:57,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:57,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:57,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:57,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:57,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:57,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:57,534 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:57,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:57,550 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:57,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:57,571 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:57,618 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:57,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:57,676 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:39:57,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:39:57,720 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:57,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:57,771 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:57,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:57,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873073134] [2021-03-11 14:39:57,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:57,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:57,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964542090] [2021-03-11 14:39:57,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:57,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:57,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:57,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:57,816 INFO L87 Difference]: Start difference. First operand 1584 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:57,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:57,998 INFO L93 Difference]: Finished difference Result 2979 states and 11776 transitions. [2021-03-11 14:39:57,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:57,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:58,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:58,005 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:39:58,005 INFO L226 Difference]: Without dead ends: 2951 [2021-03-11 14:39:58,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 365.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:58,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-03-11 14:39:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1574. [2021-03-11 14:39:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.480610298792117) internal successors, (7048), 1573 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7048 transitions. [2021-03-11 14:39:58,051 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7048 transitions. Word has length 28 [2021-03-11 14:39:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:58,051 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7048 transitions. [2021-03-11 14:39:58,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7048 transitions. [2021-03-11 14:39:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:58,054 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:58,054 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:58,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2021-03-11 14:39:58,054 INFO L428 AbstractCegarLoop]: === Iteration 509 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:58,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:58,054 INFO L82 PathProgramCache]: Analyzing trace with hash -915037076, now seen corresponding path program 501 times [2021-03-11 14:39:58,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:58,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898945055] [2021-03-11 14:39:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:58,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:58,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:58,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:58,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:58,071 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:58,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:58,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:58,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:58,099 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:58,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:58,121 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:58,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:58,165 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:58,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:58,222 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:58,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:58,283 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:39:58,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:39:58,332 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:58,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:58,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:58,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898945055] [2021-03-11 14:39:58,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:58,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:58,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747039409] [2021-03-11 14:39:58,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:58,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:58,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:58,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:58,377 INFO L87 Difference]: Start difference. First operand 1574 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:58,520 INFO L93 Difference]: Finished difference Result 2972 states and 11761 transitions. [2021-03-11 14:39:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:58,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:58,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:58,526 INFO L225 Difference]: With dead ends: 2972 [2021-03-11 14:39:58,526 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:39:58,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 338.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:58,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:39:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1579. [2021-03-11 14:39:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.47148288973384) internal successors, (7056), 1578 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7056 transitions. [2021-03-11 14:39:58,573 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7056 transitions. Word has length 28 [2021-03-11 14:39:58,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:58,573 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7056 transitions. [2021-03-11 14:39:58,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7056 transitions. [2021-03-11 14:39:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:58,576 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:58,576 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:58,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2021-03-11 14:39:58,576 INFO L428 AbstractCegarLoop]: === Iteration 510 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:58,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2063772916, now seen corresponding path program 502 times [2021-03-11 14:39:58,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:58,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309816605] [2021-03-11 14:39:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:58,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:58,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:58,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:58,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:58,592 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:58,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:58,603 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:58,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:58,620 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:58,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:58,642 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:58,686 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:58,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:58,744 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:39:58,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:39:58,805 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:58,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:58,854 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:58,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:58,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:58,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309816605] [2021-03-11 14:39:58,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:58,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:58,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790031573] [2021-03-11 14:39:58,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:58,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:58,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:58,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:58,899 INFO L87 Difference]: Start difference. First operand 1579 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:59,073 INFO L93 Difference]: Finished difference Result 2966 states and 11745 transitions. [2021-03-11 14:39:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:59,080 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:39:59,080 INFO L226 Difference]: Without dead ends: 2947 [2021-03-11 14:39:59,081 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 371.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-03-11 14:39:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1574. [2021-03-11 14:39:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.477431659249841) internal successors, (7043), 1573 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:59,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7043 transitions. [2021-03-11 14:39:59,129 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7043 transitions. Word has length 28 [2021-03-11 14:39:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:59,129 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7043 transitions. [2021-03-11 14:39:59,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7043 transitions. [2021-03-11 14:39:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:59,131 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:59,131 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:59,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2021-03-11 14:39:59,132 INFO L428 AbstractCegarLoop]: === Iteration 511 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:59,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1440606380, now seen corresponding path program 503 times [2021-03-11 14:39:59,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:59,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880287097] [2021-03-11 14:39:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:59,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:59,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:59,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:59,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:59,150 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:59,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:59,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:59,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:59,179 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:59,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:59,202 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:59,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:59,246 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:59,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:59,303 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:59,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:59,370 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:59,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:59,421 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:59,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:39:59,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:39:59,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880287097] [2021-03-11 14:39:59,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:39:59,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:39:59,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037634010] [2021-03-11 14:39:59,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:39:59,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:39:59,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:39:59,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:39:59,467 INFO L87 Difference]: Start difference. First operand 1574 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:39:59,648 INFO L93 Difference]: Finished difference Result 2967 states and 11748 transitions. [2021-03-11 14:39:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:39:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:39:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:39:59,655 INFO L225 Difference]: With dead ends: 2967 [2021-03-11 14:39:59,655 INFO L226 Difference]: Without dead ends: 2949 [2021-03-11 14:39:59,655 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 386.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:39:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2021-03-11 14:39:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1578. [2021-03-11 14:39:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.470513633481294) internal successors, (7050), 1577 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7050 transitions. [2021-03-11 14:39:59,702 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7050 transitions. Word has length 28 [2021-03-11 14:39:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:39:59,702 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7050 transitions. [2021-03-11 14:39:59,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:39:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7050 transitions. [2021-03-11 14:39:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:39:59,704 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:39:59,704 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:39:59,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2021-03-11 14:39:59,705 INFO L428 AbstractCegarLoop]: === Iteration 512 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:39:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:39:59,705 INFO L82 PathProgramCache]: Analyzing trace with hash -620253422, now seen corresponding path program 504 times [2021-03-11 14:39:59,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:39:59,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167264230] [2021-03-11 14:39:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:39:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:39:59,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:59,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:39:59,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:39:59,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:39:59,724 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:39:59,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:39:59,735 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:39:59,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:39:59,752 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:39:59,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:39:59,774 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:39:59,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:39:59,818 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:39:59,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:39:59,876 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:39:59,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:39:59,943 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:39:59,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:39:59,992 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:39:59,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:00,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167264230] [2021-03-11 14:40:00,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:00,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:00,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951565867] [2021-03-11 14:40:00,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:00,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:00,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:00,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:00,040 INFO L87 Difference]: Start difference. First operand 1578 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:00,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:00,259 INFO L93 Difference]: Finished difference Result 2963 states and 11736 transitions. [2021-03-11 14:40:00,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:00,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:00,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:00,265 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:40:00,265 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:40:00,266 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 379.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:00,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:40:00,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1562. [2021-03-11 14:40:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 4.495195387572069) internal successors, (7017), 1561 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 7017 transitions. [2021-03-11 14:40:00,317 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 7017 transitions. Word has length 28 [2021-03-11 14:40:00,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:00,317 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 7017 transitions. [2021-03-11 14:40:00,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 7017 transitions. [2021-03-11 14:40:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:00,319 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:00,319 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:00,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2021-03-11 14:40:00,319 INFO L428 AbstractCegarLoop]: === Iteration 513 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:00,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1384607460, now seen corresponding path program 505 times [2021-03-11 14:40:00,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:00,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393142874] [2021-03-11 14:40:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:00,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:00,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:00,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:00,336 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:00,348 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:00,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:00,365 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:00,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:00,387 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:00,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:00,415 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:00,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:00,473 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:00,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:00,540 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:00,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:00,590 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:00,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:00,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393142874] [2021-03-11 14:40:00,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:00,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:00,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33584421] [2021-03-11 14:40:00,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:00,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:00,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:00,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:00,637 INFO L87 Difference]: Start difference. First operand 1562 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:00,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:00,842 INFO L93 Difference]: Finished difference Result 2991 states and 11839 transitions. [2021-03-11 14:40:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:00,843 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:00,849 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:40:00,849 INFO L226 Difference]: Without dead ends: 2976 [2021-03-11 14:40:00,849 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 368.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:00,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-03-11 14:40:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1583. [2021-03-11 14:40:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.4785082174462705) internal successors, (7085), 1582 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:00,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7085 transitions. [2021-03-11 14:40:00,896 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7085 transitions. Word has length 28 [2021-03-11 14:40:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:00,896 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7085 transitions. [2021-03-11 14:40:00,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7085 transitions. [2021-03-11 14:40:00,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:00,899 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:00,899 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:00,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2021-03-11 14:40:00,899 INFO L428 AbstractCegarLoop]: === Iteration 514 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:00,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:00,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1420954840, now seen corresponding path program 506 times [2021-03-11 14:40:00,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:00,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909040696] [2021-03-11 14:40:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:00,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:00,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:00,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:00,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:00,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:00,929 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:00,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:00,946 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:00,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:00,968 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:00,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:00,997 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:00,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:01,057 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:01,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:01,122 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:01,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:01,174 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:01,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:01,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909040696] [2021-03-11 14:40:01,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:01,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:01,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218880806] [2021-03-11 14:40:01,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:01,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:01,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:01,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:01,222 INFO L87 Difference]: Start difference. First operand 1583 states and 7085 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:01,380 INFO L93 Difference]: Finished difference Result 2996 states and 11843 transitions. [2021-03-11 14:40:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:01,381 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:01,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:01,387 INFO L225 Difference]: With dead ends: 2996 [2021-03-11 14:40:01,387 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:40:01,388 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 340.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:01,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:40:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1577. [2021-03-11 14:40:01,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.4847715736040605) internal successors, (7068), 1576 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7068 transitions. [2021-03-11 14:40:01,435 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7068 transitions. Word has length 28 [2021-03-11 14:40:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:01,436 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7068 transitions. [2021-03-11 14:40:01,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7068 transitions. [2021-03-11 14:40:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:01,438 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:01,438 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:01,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2021-03-11 14:40:01,438 INFO L428 AbstractCegarLoop]: === Iteration 515 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:01,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1299418878, now seen corresponding path program 507 times [2021-03-11 14:40:01,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:01,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407076918] [2021-03-11 14:40:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:01,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:01,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:01,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:01,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:01,455 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:01,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:01,467 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:01,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:01,487 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:01,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:01,514 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:01,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:01,552 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:01,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:01,621 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:01,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:01,706 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:01,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:01,771 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:01,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:01,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:01,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407076918] [2021-03-11 14:40:01,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:01,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:01,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446862655] [2021-03-11 14:40:01,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:01,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:01,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:01,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:01,830 INFO L87 Difference]: Start difference. First operand 1577 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:02,075 INFO L93 Difference]: Finished difference Result 2988 states and 11828 transitions. [2021-03-11 14:40:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:02,076 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:02,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:02,082 INFO L225 Difference]: With dead ends: 2988 [2021-03-11 14:40:02,083 INFO L226 Difference]: Without dead ends: 2973 [2021-03-11 14:40:02,083 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 458.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:02,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2021-03-11 14:40:02,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 1582. [2021-03-11 14:40:02,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.476280834914611) internal successors, (7077), 1581 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7077 transitions. [2021-03-11 14:40:02,132 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7077 transitions. Word has length 28 [2021-03-11 14:40:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:02,132 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7077 transitions. [2021-03-11 14:40:02,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:02,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7077 transitions. [2021-03-11 14:40:02,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:02,134 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:02,135 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:02,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2021-03-11 14:40:02,135 INFO L428 AbstractCegarLoop]: === Iteration 516 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:02,135 INFO L82 PathProgramCache]: Analyzing trace with hash 934688616, now seen corresponding path program 508 times [2021-03-11 14:40:02,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:02,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039076314] [2021-03-11 14:40:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:02,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:02,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:02,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:02,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:02,154 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:02,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:02,169 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:02,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:02,192 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:02,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:02,222 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:02,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:02,255 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:02,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:02,325 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:02,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:02,416 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:02,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:02,482 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:02,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:02,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039076314] [2021-03-11 14:40:02,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:02,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:02,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988950579] [2021-03-11 14:40:02,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:02,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:02,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:02,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:02,540 INFO L87 Difference]: Start difference. First operand 1582 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:02,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:02,786 INFO L93 Difference]: Finished difference Result 2991 states and 11829 transitions. [2021-03-11 14:40:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:02,793 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:40:02,793 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:40:02,793 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 467.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:02,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:40:02,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1577. [2021-03-11 14:40:02,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.481598984771574) internal successors, (7063), 1576 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7063 transitions. [2021-03-11 14:40:02,840 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7063 transitions. Word has length 28 [2021-03-11 14:40:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:02,840 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7063 transitions. [2021-03-11 14:40:02,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7063 transitions. [2021-03-11 14:40:02,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:02,842 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:02,842 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:02,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2021-03-11 14:40:02,843 INFO L428 AbstractCegarLoop]: === Iteration 517 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:02,843 INFO L82 PathProgramCache]: Analyzing trace with hash -883099262, now seen corresponding path program 509 times [2021-03-11 14:40:02,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:02,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979609443] [2021-03-11 14:40:02,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:02,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:02,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:02,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:02,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:02,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:02,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:02,873 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:02,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:02,891 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:02,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:02,914 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:02,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:02,945 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:02,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:03,007 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:03,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:03,053 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:03,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:03,110 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:03,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:03,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979609443] [2021-03-11 14:40:03,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:03,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:03,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814648655] [2021-03-11 14:40:03,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:03,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:03,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:03,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:03,157 INFO L87 Difference]: Start difference. First operand 1577 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:03,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:03,357 INFO L93 Difference]: Finished difference Result 3003 states and 11853 transitions. [2021-03-11 14:40:03,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:03,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:03,364 INFO L225 Difference]: With dead ends: 3003 [2021-03-11 14:40:03,364 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:40:03,364 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 329.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:40:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1587. [2021-03-11 14:40:03,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.4640605296343) internal successors, (7080), 1586 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7080 transitions. [2021-03-11 14:40:03,412 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7080 transitions. Word has length 28 [2021-03-11 14:40:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:03,412 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7080 transitions. [2021-03-11 14:40:03,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7080 transitions. [2021-03-11 14:40:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:03,414 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:03,414 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:03,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2021-03-11 14:40:03,415 INFO L428 AbstractCegarLoop]: === Iteration 518 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:03,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:03,415 INFO L82 PathProgramCache]: Analyzing trace with hash -138396764, now seen corresponding path program 510 times [2021-03-11 14:40:03,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:03,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338921422] [2021-03-11 14:40:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:03,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:03,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:03,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:03,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:03,433 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:03,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:03,445 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:03,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:03,462 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:03,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:03,485 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:03,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:03,515 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:03,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:03,588 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:03,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:03,636 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:03,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:03,687 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:03,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:03,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338921422] [2021-03-11 14:40:03,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:03,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:03,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377552535] [2021-03-11 14:40:03,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:03,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:03,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:03,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:03,735 INFO L87 Difference]: Start difference. First operand 1587 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:04,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:04,011 INFO L93 Difference]: Finished difference Result 3001 states and 11841 transitions. [2021-03-11 14:40:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:04,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:04,017 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:40:04,017 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:40:04,018 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 379.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:40:04,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1570. [2021-03-11 14:40:04,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.488846398980242) internal successors, (7043), 1569 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:04,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7043 transitions. [2021-03-11 14:40:04,065 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7043 transitions. Word has length 28 [2021-03-11 14:40:04,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:04,065 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7043 transitions. [2021-03-11 14:40:04,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7043 transitions. [2021-03-11 14:40:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:04,067 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:04,067 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:04,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2021-03-11 14:40:04,067 INFO L428 AbstractCegarLoop]: === Iteration 519 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:04,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1972352782, now seen corresponding path program 511 times [2021-03-11 14:40:04,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:04,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152776990] [2021-03-11 14:40:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:04,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:04,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:04,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:04,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:04,087 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:04,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:04,101 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:04,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:04,119 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:04,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:04,147 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:04,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:04,185 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:04,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:04,231 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:04,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:04,306 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:04,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:04,356 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:04,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:04,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152776990] [2021-03-11 14:40:04,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:04,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:04,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245175188] [2021-03-11 14:40:04,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:04,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:04,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:04,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:04,405 INFO L87 Difference]: Start difference. First operand 1570 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:04,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:04,618 INFO L93 Difference]: Finished difference Result 2987 states and 11824 transitions. [2021-03-11 14:40:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:04,620 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:04,626 INFO L225 Difference]: With dead ends: 2987 [2021-03-11 14:40:04,626 INFO L226 Difference]: Without dead ends: 2972 [2021-03-11 14:40:04,626 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 390.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:04,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-03-11 14:40:04,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 1582. [2021-03-11 14:40:04,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.475648323845667) internal successors, (7076), 1581 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7076 transitions. [2021-03-11 14:40:04,674 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7076 transitions. Word has length 28 [2021-03-11 14:40:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:04,674 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7076 transitions. [2021-03-11 14:40:04,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7076 transitions. [2021-03-11 14:40:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:04,676 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:04,676 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:04,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2021-03-11 14:40:04,676 INFO L428 AbstractCegarLoop]: === Iteration 520 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:04,676 INFO L82 PathProgramCache]: Analyzing trace with hash -833209518, now seen corresponding path program 512 times [2021-03-11 14:40:04,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:04,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933396464] [2021-03-11 14:40:04,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:04,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:04,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:04,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:04,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:04,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:04,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:04,712 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:04,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:04,730 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:04,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:04,754 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:04,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:04,782 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:04,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:04,817 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:04,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:04,887 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:04,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:04,939 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:04,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:04,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933396464] [2021-03-11 14:40:04,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:04,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:04,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813852712] [2021-03-11 14:40:04,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:04,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:04,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:04,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:04,988 INFO L87 Difference]: Start difference. First operand 1582 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:05,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:05,243 INFO L93 Difference]: Finished difference Result 2992 states and 11828 transitions. [2021-03-11 14:40:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:05,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:05,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:05,250 INFO L225 Difference]: With dead ends: 2992 [2021-03-11 14:40:05,251 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:40:05,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 343.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:05,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:40:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1576. [2021-03-11 14:40:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.481904761904762) internal successors, (7059), 1575 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7059 transitions. [2021-03-11 14:40:05,299 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7059 transitions. Word has length 28 [2021-03-11 14:40:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:05,299 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7059 transitions. [2021-03-11 14:40:05,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7059 transitions. [2021-03-11 14:40:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:05,301 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:05,301 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:05,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2021-03-11 14:40:05,301 INFO L428 AbstractCegarLoop]: === Iteration 521 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:05,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1246903358, now seen corresponding path program 513 times [2021-03-11 14:40:05,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:05,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064461554] [2021-03-11 14:40:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:05,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:05,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:05,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:05,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:05,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:05,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:05,333 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:05,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:05,353 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:05,379 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:05,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:05,409 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:05,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:05,445 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:05,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:05,488 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:05,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:05,540 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:05,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:05,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064461554] [2021-03-11 14:40:05,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:05,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:05,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628267590] [2021-03-11 14:40:05,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:05,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:05,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:05,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:05,593 INFO L87 Difference]: Start difference. First operand 1576 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:05,802 INFO L93 Difference]: Finished difference Result 2983 states and 11811 transitions. [2021-03-11 14:40:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:05,803 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:05,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:05,809 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:40:05,809 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:40:05,809 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 345.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:05,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:40:05,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1581. [2021-03-11 14:40:05,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.473417721518987) internal successors, (7068), 1580 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:05,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7068 transitions. [2021-03-11 14:40:05,856 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7068 transitions. Word has length 28 [2021-03-11 14:40:05,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:05,856 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7068 transitions. [2021-03-11 14:40:05,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:05,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7068 transitions. [2021-03-11 14:40:05,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:05,859 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:05,859 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:05,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2021-03-11 14:40:05,859 INFO L428 AbstractCegarLoop]: === Iteration 522 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:05,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:05,859 INFO L82 PathProgramCache]: Analyzing trace with hash 415749330, now seen corresponding path program 514 times [2021-03-11 14:40:05,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:05,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804745729] [2021-03-11 14:40:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:05,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:05,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:05,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:05,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:05,878 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:05,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:05,893 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:05,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:05,912 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:05,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:05,939 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:05,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:05,971 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:05,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:06,009 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:06,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:06,055 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:06,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:06,111 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:06,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:06,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804745729] [2021-03-11 14:40:06,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:06,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:06,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160301768] [2021-03-11 14:40:06,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:06,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:06,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:06,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:06,160 INFO L87 Difference]: Start difference. First operand 1581 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:06,373 INFO L93 Difference]: Finished difference Result 2985 states and 11810 transitions. [2021-03-11 14:40:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:06,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:06,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:06,379 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:40:06,379 INFO L226 Difference]: Without dead ends: 2963 [2021-03-11 14:40:06,380 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 352.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2021-03-11 14:40:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1576. [2021-03-11 14:40:06,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.4787301587301585) internal successors, (7054), 1575 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7054 transitions. [2021-03-11 14:40:06,426 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7054 transitions. Word has length 28 [2021-03-11 14:40:06,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:06,426 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7054 transitions. [2021-03-11 14:40:06,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:06,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7054 transitions. [2021-03-11 14:40:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:06,428 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:06,428 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:06,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2021-03-11 14:40:06,428 INFO L428 AbstractCegarLoop]: === Iteration 523 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:06,428 INFO L82 PathProgramCache]: Analyzing trace with hash -830583742, now seen corresponding path program 515 times [2021-03-11 14:40:06,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:06,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744704041] [2021-03-11 14:40:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:06,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:06,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:06,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:06,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:06,446 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:06,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:06,458 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:06,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:06,477 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:06,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:06,504 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:06,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:06,539 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:06,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:06,583 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:06,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:06,642 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:06,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:06,711 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:06,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:06,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744704041] [2021-03-11 14:40:06,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:06,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:06,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409235244] [2021-03-11 14:40:06,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:06,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:06,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:06,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:06,772 INFO L87 Difference]: Start difference. First operand 1576 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:07,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:07,003 INFO L93 Difference]: Finished difference Result 2996 states and 11832 transitions. [2021-03-11 14:40:07,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:07,004 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:07,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:07,010 INFO L225 Difference]: With dead ends: 2996 [2021-03-11 14:40:07,010 INFO L226 Difference]: Without dead ends: 2976 [2021-03-11 14:40:07,010 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 362.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:07,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-03-11 14:40:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1584. [2021-03-11 14:40:07,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.464939987365761) internal successors, (7068), 1583 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7068 transitions. [2021-03-11 14:40:07,057 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7068 transitions. Word has length 28 [2021-03-11 14:40:07,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:07,057 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7068 transitions. [2021-03-11 14:40:07,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:07,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7068 transitions. [2021-03-11 14:40:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:07,060 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:07,060 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:07,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2021-03-11 14:40:07,060 INFO L428 AbstractCegarLoop]: === Iteration 524 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:07,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:07,060 INFO L82 PathProgramCache]: Analyzing trace with hash -657336050, now seen corresponding path program 516 times [2021-03-11 14:40:07,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:07,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628883045] [2021-03-11 14:40:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:07,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:07,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:07,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:07,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:07,078 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:07,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:07,091 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:07,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:07,110 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:07,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:07,134 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:07,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:07,172 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:07,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:07,214 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:07,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:07,272 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:07,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:07,339 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:07,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:07,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628883045] [2021-03-11 14:40:07,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:07,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:07,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016106059] [2021-03-11 14:40:07,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:07,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:07,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:07,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:07,394 INFO L87 Difference]: Start difference. First operand 1584 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:07,664 INFO L93 Difference]: Finished difference Result 2993 states and 11819 transitions. [2021-03-11 14:40:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:07,666 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:07,671 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:40:07,671 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:40:07,672 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 385.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:07,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:40:07,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1570. [2021-03-11 14:40:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.48502230720204) internal successors, (7037), 1569 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7037 transitions. [2021-03-11 14:40:07,718 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7037 transitions. Word has length 28 [2021-03-11 14:40:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:07,718 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7037 transitions. [2021-03-11 14:40:07,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7037 transitions. [2021-03-11 14:40:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:07,720 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:07,720 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:07,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2021-03-11 14:40:07,720 INFO L428 AbstractCegarLoop]: === Iteration 525 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:07,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:07,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1982855886, now seen corresponding path program 517 times [2021-03-11 14:40:07,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:07,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546392358] [2021-03-11 14:40:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:07,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:07,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:07,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:07,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:07,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:07,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:07,750 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:07,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:07,771 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:07,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:07,799 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:07,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:07,832 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:07,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:07,870 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:07,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:07,944 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:07,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:07,998 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:07,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:08,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546392358] [2021-03-11 14:40:08,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:08,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:08,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294034065] [2021-03-11 14:40:08,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:08,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:08,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:08,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:08,049 INFO L87 Difference]: Start difference. First operand 1570 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:08,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:08,335 INFO L93 Difference]: Finished difference Result 2979 states and 11803 transitions. [2021-03-11 14:40:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:08,337 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:08,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:08,343 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:40:08,343 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:40:08,343 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 399.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:08,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:40:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1580. [2021-03-11 14:40:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.474350854971501) internal successors, (7065), 1579 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:08,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7065 transitions. [2021-03-11 14:40:08,391 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7065 transitions. Word has length 28 [2021-03-11 14:40:08,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:08,391 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7065 transitions. [2021-03-11 14:40:08,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7065 transitions. [2021-03-11 14:40:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:08,393 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:08,394 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:08,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2021-03-11 14:40:08,394 INFO L428 AbstractCegarLoop]: === Iteration 526 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:08,394 INFO L82 PathProgramCache]: Analyzing trace with hash -78003916, now seen corresponding path program 518 times [2021-03-11 14:40:08,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:08,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642800311] [2021-03-11 14:40:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:08,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:08,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:08,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:08,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:08,424 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:08,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:08,437 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:08,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:08,455 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:08,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:08,480 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:08,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:08,511 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:08,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:08,547 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:08,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:08,621 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:08,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:08,704 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:08,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:08,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642800311] [2021-03-11 14:40:08,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:08,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:08,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311746938] [2021-03-11 14:40:08,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:08,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:08,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:08,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:08,751 INFO L87 Difference]: Start difference. First operand 1580 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:08,950 INFO L93 Difference]: Finished difference Result 2982 states and 11804 transitions. [2021-03-11 14:40:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:08,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:08,956 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:40:08,956 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:40:08,957 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 400.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:40:08,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1575. [2021-03-11 14:40:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.479669631512071) internal successors, (7051), 1574 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7051 transitions. [2021-03-11 14:40:09,003 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7051 transitions. Word has length 28 [2021-03-11 14:40:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:09,003 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7051 transitions. [2021-03-11 14:40:09,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:09,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7051 transitions. [2021-03-11 14:40:09,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:09,005 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:09,005 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:09,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2021-03-11 14:40:09,005 INFO L428 AbstractCegarLoop]: === Iteration 527 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:09,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:09,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1447626084, now seen corresponding path program 519 times [2021-03-11 14:40:09,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:09,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734855108] [2021-03-11 14:40:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:09,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:09,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:09,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:09,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:09,022 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:09,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:09,034 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:09,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:09,051 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:09,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:09,073 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:09,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:09,101 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:09,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:09,135 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:09,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:09,177 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:09,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:09,228 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:09,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:09,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734855108] [2021-03-11 14:40:09,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:09,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:09,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570287321] [2021-03-11 14:40:09,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:09,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:09,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:09,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:09,277 INFO L87 Difference]: Start difference. First operand 1575 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:09,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:09,488 INFO L93 Difference]: Finished difference Result 2978 states and 11796 transitions. [2021-03-11 14:40:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:09,489 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:09,495 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:40:09,495 INFO L226 Difference]: Without dead ends: 2963 [2021-03-11 14:40:09,495 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 331.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2021-03-11 14:40:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1580. [2021-03-11 14:40:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.471184293856871) internal successors, (7060), 1579 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:09,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7060 transitions. [2021-03-11 14:40:09,544 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7060 transitions. Word has length 28 [2021-03-11 14:40:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:09,544 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7060 transitions. [2021-03-11 14:40:09,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7060 transitions. [2021-03-11 14:40:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:09,546 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:09,546 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:09,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2021-03-11 14:40:09,546 INFO L428 AbstractCegarLoop]: === Iteration 528 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:09,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:09,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1184688524, now seen corresponding path program 520 times [2021-03-11 14:40:09,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:09,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513586917] [2021-03-11 14:40:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:09,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:09,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:09,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:09,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:09,564 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:09,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:09,578 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:09,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:09,597 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:09,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:09,623 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:09,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:09,655 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:09,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:09,694 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:09,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:09,741 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:09,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:09,799 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:09,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:09,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513586917] [2021-03-11 14:40:09,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:09,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:09,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473678963] [2021-03-11 14:40:09,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:09,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:09,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:09,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:09,851 INFO L87 Difference]: Start difference. First operand 1580 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:10,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:10,110 INFO L93 Difference]: Finished difference Result 2980 states and 11795 transitions. [2021-03-11 14:40:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:10,111 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:10,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:10,117 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:40:10,117 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:40:10,117 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 360.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:40:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1575. [2021-03-11 14:40:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.476493011435832) internal successors, (7046), 1574 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7046 transitions. [2021-03-11 14:40:10,166 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7046 transitions. Word has length 28 [2021-03-11 14:40:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:10,166 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7046 transitions. [2021-03-11 14:40:10,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7046 transitions. [2021-03-11 14:40:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:10,168 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:10,168 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:10,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2021-03-11 14:40:10,168 INFO L428 AbstractCegarLoop]: === Iteration 529 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:10,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:10,168 INFO L82 PathProgramCache]: Analyzing trace with hash -75378140, now seen corresponding path program 521 times [2021-03-11 14:40:10,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:10,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462414945] [2021-03-11 14:40:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:10,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:10,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:10,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:10,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:10,185 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:10,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:10,197 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:10,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:10,215 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:10,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:10,238 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:10,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:10,268 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:10,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:10,305 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:10,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:10,351 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:10,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:10,409 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:10,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:10,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462414945] [2021-03-11 14:40:10,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:10,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:10,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334056181] [2021-03-11 14:40:10,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:10,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:10,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:10,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:10,464 INFO L87 Difference]: Start difference. First operand 1575 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:10,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:10,687 INFO L93 Difference]: Finished difference Result 2986 states and 11809 transitions. [2021-03-11 14:40:10,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:10,688 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:10,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:10,694 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:40:10,694 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:40:10,695 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 355.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:10,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:40:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1582. [2021-03-11 14:40:10,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.464895635673624) internal successors, (7059), 1581 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7059 transitions. [2021-03-11 14:40:10,742 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7059 transitions. Word has length 28 [2021-03-11 14:40:10,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:10,742 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7059 transitions. [2021-03-11 14:40:10,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7059 transitions. [2021-03-11 14:40:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:10,744 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:10,744 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:10,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2021-03-11 14:40:10,744 INFO L428 AbstractCegarLoop]: === Iteration 530 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:10,745 INFO L82 PathProgramCache]: Analyzing trace with hash -646832946, now seen corresponding path program 522 times [2021-03-11 14:40:10,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:10,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508155558] [2021-03-11 14:40:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:10,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:10,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:10,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:10,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:10,764 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:10,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:10,777 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:10,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:10,801 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:10,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:10,828 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:10,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:10,859 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:10,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:10,898 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:10,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:10,944 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:10,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:11,004 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:11,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:11,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508155558] [2021-03-11 14:40:11,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:11,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:11,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353264801] [2021-03-11 14:40:11,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:11,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:11,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:11,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:11,063 INFO L87 Difference]: Start difference. First operand 1582 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:11,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:11,270 INFO L93 Difference]: Finished difference Result 2985 states and 11800 transitions. [2021-03-11 14:40:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:11,271 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:11,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:11,278 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:40:11,278 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:40:11,278 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 368.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:11,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:40:11,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1570. [2021-03-11 14:40:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4818355640535374) internal successors, (7032), 1569 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7032 transitions. [2021-03-11 14:40:11,326 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7032 transitions. Word has length 28 [2021-03-11 14:40:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:11,326 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7032 transitions. [2021-03-11 14:40:11,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7032 transitions. [2021-03-11 14:40:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:11,328 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:11,328 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:11,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2021-03-11 14:40:11,328 INFO L428 AbstractCegarLoop]: === Iteration 531 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:11,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:11,328 INFO L82 PathProgramCache]: Analyzing trace with hash -801700206, now seen corresponding path program 523 times [2021-03-11 14:40:11,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:11,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612627171] [2021-03-11 14:40:11,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:11,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:11,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:11,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:11,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:11,353 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:11,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:11,371 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:11,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:11,397 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:11,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:11,430 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:11,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:11,468 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:11,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:11,510 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:11,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:11,561 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:11,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:11,620 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:11,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:11,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612627171] [2021-03-11 14:40:11,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:11,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:11,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283301358] [2021-03-11 14:40:11,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:11,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:11,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:11,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:11,675 INFO L87 Difference]: Start difference. First operand 1570 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:11,889 INFO L93 Difference]: Finished difference Result 3012 states and 11871 transitions. [2021-03-11 14:40:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:11,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:11,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:11,897 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:40:11,897 INFO L226 Difference]: Without dead ends: 2992 [2021-03-11 14:40:11,897 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 360.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:11,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-03-11 14:40:11,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 1590. [2021-03-11 14:40:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.456891126494651) internal successors, (7082), 1589 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7082 transitions. [2021-03-11 14:40:11,945 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7082 transitions. Word has length 28 [2021-03-11 14:40:11,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:11,945 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7082 transitions. [2021-03-11 14:40:11,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:11,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7082 transitions. [2021-03-11 14:40:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:11,947 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:11,947 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:11,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2021-03-11 14:40:11,947 INFO L428 AbstractCegarLoop]: === Iteration 532 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:11,948 INFO L82 PathProgramCache]: Analyzing trace with hash -56997708, now seen corresponding path program 524 times [2021-03-11 14:40:11,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:11,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923467771] [2021-03-11 14:40:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:11,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:11,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:11,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:11,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:11,966 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:11,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:11,980 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:11,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:12,000 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:12,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:12,028 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:12,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:12,062 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:12,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:12,105 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:12,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:12,156 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:12,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:12,214 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:12,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:12,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923467771] [2021-03-11 14:40:12,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:12,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:12,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696838692] [2021-03-11 14:40:12,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:12,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:12,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:12,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:12,267 INFO L87 Difference]: Start difference. First operand 1590 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:12,492 INFO L93 Difference]: Finished difference Result 3010 states and 11859 transitions. [2021-03-11 14:40:12,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:12,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:12,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:12,500 INFO L225 Difference]: With dead ends: 3010 [2021-03-11 14:40:12,500 INFO L226 Difference]: Without dead ends: 2982 [2021-03-11 14:40:12,500 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 382.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:12,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2021-03-11 14:40:12,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1580. [2021-03-11 14:40:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.468651044965168) internal successors, (7056), 1579 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7056 transitions. [2021-03-11 14:40:12,551 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7056 transitions. Word has length 28 [2021-03-11 14:40:12,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:12,551 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7056 transitions. [2021-03-11 14:40:12,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:12,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7056 transitions. [2021-03-11 14:40:12,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:12,553 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:12,553 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:12,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2021-03-11 14:40:12,553 INFO L428 AbstractCegarLoop]: === Iteration 533 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:12,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:12,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1336930008, now seen corresponding path program 525 times [2021-03-11 14:40:12,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:12,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830584921] [2021-03-11 14:40:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:12,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:12,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:12,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:12,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:12,572 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:12,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:12,586 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:12,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:12,606 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:12,632 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:12,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:12,663 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:12,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:12,700 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:12,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:12,748 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:12,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:12,806 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:12,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:12,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:12,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830584921] [2021-03-11 14:40:12,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:12,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:12,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216558362] [2021-03-11 14:40:12,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:12,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:12,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:12,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:12,856 INFO L87 Difference]: Start difference. First operand 1580 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:13,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:13,060 INFO L93 Difference]: Finished difference Result 3009 states and 11856 transitions. [2021-03-11 14:40:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:13,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:13,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:13,068 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:40:13,068 INFO L226 Difference]: Without dead ends: 2989 [2021-03-11 14:40:13,068 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 322.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-03-11 14:40:13,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1588. [2021-03-11 14:40:13,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.4549464398235665) internal successors, (7070), 1587 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7070 transitions. [2021-03-11 14:40:13,116 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7070 transitions. Word has length 28 [2021-03-11 14:40:13,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:13,116 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7070 transitions. [2021-03-11 14:40:13,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:13,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7070 transitions. [2021-03-11 14:40:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:13,118 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:13,118 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:13,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2021-03-11 14:40:13,119 INFO L428 AbstractCegarLoop]: === Iteration 534 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:13,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:13,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1163682316, now seen corresponding path program 526 times [2021-03-11 14:40:13,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:13,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495823301] [2021-03-11 14:40:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:13,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:13,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:13,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:13,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:13,137 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:13,151 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:13,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:13,170 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:13,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:13,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:13,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:13,228 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:13,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:13,270 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:13,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:13,322 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:13,379 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:13,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:13,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495823301] [2021-03-11 14:40:13,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:13,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:13,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147334099] [2021-03-11 14:40:13,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:13,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:13,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:13,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:13,431 INFO L87 Difference]: Start difference. First operand 1588 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:13,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:13,625 INFO L93 Difference]: Finished difference Result 3006 states and 11843 transitions. [2021-03-11 14:40:13,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:13,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:13,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:13,632 INFO L225 Difference]: With dead ends: 3006 [2021-03-11 14:40:13,632 INFO L226 Difference]: Without dead ends: 2981 [2021-03-11 14:40:13,632 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 363.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-03-11 14:40:13,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1580. [2021-03-11 14:40:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.46358454718176) internal successors, (7048), 1579 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:13,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7048 transitions. [2021-03-11 14:40:13,681 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7048 transitions. Word has length 28 [2021-03-11 14:40:13,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:13,681 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7048 transitions. [2021-03-11 14:40:13,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:13,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7048 transitions. [2021-03-11 14:40:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:13,683 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:13,683 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:13,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2021-03-11 14:40:13,683 INFO L428 AbstractCegarLoop]: === Iteration 535 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:13,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:13,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1018713448, now seen corresponding path program 527 times [2021-03-11 14:40:13,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:13,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680896159] [2021-03-11 14:40:13,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:13,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:13,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:13,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:13,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:13,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:13,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:13,727 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:13,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:13,753 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:13,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:13,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:13,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:13,828 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:13,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:13,881 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:13,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:13,941 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:13,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:14,010 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:14,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:14,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680896159] [2021-03-11 14:40:14,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:14,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:14,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441366764] [2021-03-11 14:40:14,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:14,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:14,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:14,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:14,074 INFO L87 Difference]: Start difference. First operand 1580 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:14,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:14,290 INFO L93 Difference]: Finished difference Result 3004 states and 11840 transitions. [2021-03-11 14:40:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:14,291 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:14,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:14,297 INFO L225 Difference]: With dead ends: 3004 [2021-03-11 14:40:14,297 INFO L226 Difference]: Without dead ends: 2986 [2021-03-11 14:40:14,297 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 437.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:14,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2021-03-11 14:40:14,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1587. [2021-03-11 14:40:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.452080706179067) internal successors, (7061), 1586 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:14,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7061 transitions. [2021-03-11 14:40:14,344 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7061 transitions. Word has length 28 [2021-03-11 14:40:14,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:14,344 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7061 transitions. [2021-03-11 14:40:14,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:14,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7061 transitions. [2021-03-11 14:40:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:14,346 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:14,346 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:14,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2021-03-11 14:40:14,346 INFO L428 AbstractCegarLoop]: === Iteration 536 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:14,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:14,346 INFO L82 PathProgramCache]: Analyzing trace with hash 447258642, now seen corresponding path program 528 times [2021-03-11 14:40:14,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:14,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25428154] [2021-03-11 14:40:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:14,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:14,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:14,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:14,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:14,373 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:14,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:14,391 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:14,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:14,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:14,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:14,442 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:40:14,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:40:14,473 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:14,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:14,515 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:14,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:14,564 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:14,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:14,620 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:14,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:14,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25428154] [2021-03-11 14:40:14,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:14,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:14,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617542782] [2021-03-11 14:40:14,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:14,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:14,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:14,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:14,670 INFO L87 Difference]: Start difference. First operand 1587 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:14,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:14,900 INFO L93 Difference]: Finished difference Result 3003 states and 11831 transitions. [2021-03-11 14:40:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:14,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:14,907 INFO L225 Difference]: With dead ends: 3003 [2021-03-11 14:40:14,907 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:40:14,908 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 366.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:14,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:40:14,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1562. [2021-03-11 14:40:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 4.490711082639334) internal successors, (7010), 1561 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:14,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 7010 transitions. [2021-03-11 14:40:14,955 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 7010 transitions. Word has length 28 [2021-03-11 14:40:14,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:14,955 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 7010 transitions. [2021-03-11 14:40:14,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:14,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 7010 transitions. [2021-03-11 14:40:14,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:14,957 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:14,957 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:14,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2021-03-11 14:40:14,958 INFO L428 AbstractCegarLoop]: === Iteration 537 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:14,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:14,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1933571164, now seen corresponding path program 529 times [2021-03-11 14:40:14,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:14,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927123085] [2021-03-11 14:40:14,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:14,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:14,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:14,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:14,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:14,982 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:14,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:14,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:14,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:15,024 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:15,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:15,048 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:15,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:15,080 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:15,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:15,139 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:15,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:15,216 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:15,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:15,279 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:15,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:15,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927123085] [2021-03-11 14:40:15,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:15,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:15,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555010949] [2021-03-11 14:40:15,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:15,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:15,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:15,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:15,328 INFO L87 Difference]: Start difference. First operand 1562 states and 7010 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:15,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:15,539 INFO L93 Difference]: Finished difference Result 2955 states and 11734 transitions. [2021-03-11 14:40:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:15,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:15,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:15,546 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:40:15,546 INFO L226 Difference]: Without dead ends: 2940 [2021-03-11 14:40:15,546 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 413.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-03-11 14:40:15,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1578. [2021-03-11 14:40:15,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.478123018389347) internal successors, (7062), 1577 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:15,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7062 transitions. [2021-03-11 14:40:15,594 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7062 transitions. Word has length 28 [2021-03-11 14:40:15,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:15,594 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7062 transitions. [2021-03-11 14:40:15,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7062 transitions. [2021-03-11 14:40:15,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:15,597 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:15,597 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:15,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2021-03-11 14:40:15,597 INFO L428 AbstractCegarLoop]: === Iteration 538 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:15,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:15,599 INFO L82 PathProgramCache]: Analyzing trace with hash -444166168, now seen corresponding path program 530 times [2021-03-11 14:40:15,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:15,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113805931] [2021-03-11 14:40:15,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:15,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:15,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:15,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:15,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:15,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:15,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:15,646 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:15,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:15,670 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:15,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:15,696 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:15,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:15,725 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:15,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:15,782 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:15,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:15,853 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:15,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:15,909 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:15,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:15,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113805931] [2021-03-11 14:40:15,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:15,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:15,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818054992] [2021-03-11 14:40:15,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:15,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:15,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:15,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:15,964 INFO L87 Difference]: Start difference. First operand 1578 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:16,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:16,192 INFO L93 Difference]: Finished difference Result 2960 states and 11738 transitions. [2021-03-11 14:40:16,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:16,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:16,199 INFO L225 Difference]: With dead ends: 2960 [2021-03-11 14:40:16,199 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:40:16,199 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 379.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:16,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:40:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1572. [2021-03-11 14:40:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.485041374920433) internal successors, (7046), 1571 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7046 transitions. [2021-03-11 14:40:16,245 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7046 transitions. Word has length 28 [2021-03-11 14:40:16,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:16,245 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7046 transitions. [2021-03-11 14:40:16,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:16,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7046 transitions. [2021-03-11 14:40:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:16,248 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:16,248 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:16,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2021-03-11 14:40:16,248 INFO L428 AbstractCegarLoop]: === Iteration 539 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:16,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:16,248 INFO L82 PathProgramCache]: Analyzing trace with hash 215225372, now seen corresponding path program 531 times [2021-03-11 14:40:16,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:16,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479745866] [2021-03-11 14:40:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:16,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:16,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:16,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:16,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:16,266 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:16,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:16,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:16,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:16,297 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:16,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:16,321 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:16,352 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:16,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:16,412 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:16,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:16,458 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:16,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:16,511 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:16,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:16,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479745866] [2021-03-11 14:40:16,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:16,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:16,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714416070] [2021-03-11 14:40:16,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:16,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:16,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:16,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:16,560 INFO L87 Difference]: Start difference. First operand 1572 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:16,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:16,769 INFO L93 Difference]: Finished difference Result 2947 states and 11713 transitions. [2021-03-11 14:40:16,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:16,771 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:16,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:16,776 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:40:16,777 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:40:16,777 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 367.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:16,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:40:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1576. [2021-03-11 14:40:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.478095238095238) internal successors, (7053), 1575 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:16,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7053 transitions. [2021-03-11 14:40:16,824 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7053 transitions. Word has length 28 [2021-03-11 14:40:16,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:16,824 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7053 transitions. [2021-03-11 14:40:16,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:16,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7053 transitions. [2021-03-11 14:40:16,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:16,826 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:16,826 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:16,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2021-03-11 14:40:16,826 INFO L428 AbstractCegarLoop]: === Iteration 540 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:16,827 INFO L82 PathProgramCache]: Analyzing trace with hash 388473064, now seen corresponding path program 532 times [2021-03-11 14:40:16,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:16,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178213865] [2021-03-11 14:40:16,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:16,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:16,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:16,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:16,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:16,844 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:16,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:16,856 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:16,874 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:16,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:16,897 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:16,927 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:16,986 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:16,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:17,037 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:17,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:17,092 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:17,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:17,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178213865] [2021-03-11 14:40:17,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:17,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:17,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061932222] [2021-03-11 14:40:17,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:17,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:17,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:17,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:17,144 INFO L87 Difference]: Start difference. First operand 1576 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:17,369 INFO L93 Difference]: Finished difference Result 2946 states and 11707 transitions. [2021-03-11 14:40:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:17,377 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:40:17,377 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:40:17,377 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 373.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:17,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:40:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1572. [2021-03-11 14:40:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.48249522597072) internal successors, (7042), 1571 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7042 transitions. [2021-03-11 14:40:17,425 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7042 transitions. Word has length 28 [2021-03-11 14:40:17,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:17,425 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7042 transitions. [2021-03-11 14:40:17,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:17,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7042 transitions. [2021-03-11 14:40:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:17,427 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:17,428 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:17,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2021-03-11 14:40:17,428 INFO L428 AbstractCegarLoop]: === Iteration 541 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:17,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:17,428 INFO L82 PathProgramCache]: Analyzing trace with hash 631544988, now seen corresponding path program 533 times [2021-03-11 14:40:17,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:17,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139515614] [2021-03-11 14:40:17,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:17,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:17,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:17,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:17,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:17,446 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:17,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:17,459 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:17,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:17,479 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:17,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:17,504 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:17,535 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:17,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:17,598 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:17,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:17,669 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:17,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:17,733 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:17,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:17,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139515614] [2021-03-11 14:40:17,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:17,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:17,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601824822] [2021-03-11 14:40:17,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:17,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:17,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:17,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:17,784 INFO L87 Difference]: Start difference. First operand 1572 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:18,011 INFO L93 Difference]: Finished difference Result 2958 states and 11729 transitions. [2021-03-11 14:40:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:18,013 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:18,018 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:40:18,018 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:40:18,018 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 392.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:40:18,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1577. [2021-03-11 14:40:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.473350253807107) internal successors, (7050), 1576 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7050 transitions. [2021-03-11 14:40:18,066 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7050 transitions. Word has length 28 [2021-03-11 14:40:18,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:18,066 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7050 transitions. [2021-03-11 14:40:18,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:18,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7050 transitions. [2021-03-11 14:40:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:18,068 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:18,068 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:18,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2021-03-11 14:40:18,068 INFO L428 AbstractCegarLoop]: === Iteration 542 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:18,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:18,068 INFO L82 PathProgramCache]: Analyzing trace with hash -684612316, now seen corresponding path program 534 times [2021-03-11 14:40:18,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:18,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2382624] [2021-03-11 14:40:18,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:18,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:18,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:18,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:18,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:18,086 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:18,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:18,098 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:18,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:18,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:18,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:18,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:18,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:18,168 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:18,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:18,226 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:18,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:18,297 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:18,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:18,350 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:18,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:18,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2382624] [2021-03-11 14:40:18,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:18,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:18,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814159360] [2021-03-11 14:40:18,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:18,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:18,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:18,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:18,399 INFO L87 Difference]: Start difference. First operand 1577 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:18,632 INFO L93 Difference]: Finished difference Result 2952 states and 11713 transitions. [2021-03-11 14:40:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:18,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:18,639 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:40:18,639 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:40:18,639 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 384.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:18,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:40:18,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1567. [2021-03-11 14:40:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.48786717752235) internal successors, (7028), 1566 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7028 transitions. [2021-03-11 14:40:18,686 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7028 transitions. Word has length 28 [2021-03-11 14:40:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:18,686 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7028 transitions. [2021-03-11 14:40:18,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7028 transitions. [2021-03-11 14:40:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:18,688 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:18,688 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:18,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2021-03-11 14:40:18,688 INFO L428 AbstractCegarLoop]: === Iteration 543 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash -839479576, now seen corresponding path program 535 times [2021-03-11 14:40:18,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:18,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066348190] [2021-03-11 14:40:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:18,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:18,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:18,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:18,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:18,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:18,719 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:18,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:18,737 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:18,762 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:18,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:18,797 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:18,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:18,844 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:18,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:18,921 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:18,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:18,975 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:18,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:19,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066348190] [2021-03-11 14:40:19,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:19,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:19,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449977663] [2021-03-11 14:40:19,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:19,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:19,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:19,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:19,024 INFO L87 Difference]: Start difference. First operand 1567 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:19,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:19,279 INFO L93 Difference]: Finished difference Result 2963 states and 11751 transitions. [2021-03-11 14:40:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:19,281 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:19,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:19,287 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:40:19,287 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:40:19,287 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 393.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:40:19,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1579. [2021-03-11 14:40:19,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.474651457541191) internal successors, (7061), 1578 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:19,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7061 transitions. [2021-03-11 14:40:19,335 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7061 transitions. Word has length 28 [2021-03-11 14:40:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:19,335 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7061 transitions. [2021-03-11 14:40:19,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7061 transitions. [2021-03-11 14:40:19,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:19,337 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:19,337 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:19,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2021-03-11 14:40:19,337 INFO L428 AbstractCegarLoop]: === Iteration 544 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:19,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:19,337 INFO L82 PathProgramCache]: Analyzing trace with hash 649925420, now seen corresponding path program 536 times [2021-03-11 14:40:19,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:19,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031861195] [2021-03-11 14:40:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:19,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:19,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:19,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:19,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:19,366 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:19,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:19,389 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:19,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:19,416 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:19,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:19,456 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:19,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:19,502 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:19,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:19,558 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:19,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:19,673 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:19,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:19,765 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:19,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:19,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:19,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031861195] [2021-03-11 14:40:19,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:19,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:19,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095643591] [2021-03-11 14:40:19,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:19,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:19,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:19,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:19,831 INFO L87 Difference]: Start difference. First operand 1579 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:20,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:20,032 INFO L93 Difference]: Finished difference Result 2968 states and 11755 transitions. [2021-03-11 14:40:20,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:20,039 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:40:20,039 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:40:20,039 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 494.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:20,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:40:20,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1573. [2021-03-11 14:40:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.480916030534351) internal successors, (7044), 1572 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7044 transitions. [2021-03-11 14:40:20,086 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7044 transitions. Word has length 28 [2021-03-11 14:40:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:20,086 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7044 transitions. [2021-03-11 14:40:20,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7044 transitions. [2021-03-11 14:40:20,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:20,089 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:20,089 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:20,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2021-03-11 14:40:20,089 INFO L428 AbstractCegarLoop]: === Iteration 545 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:20,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:20,089 INFO L82 PathProgramCache]: Analyzing trace with hash 236231580, now seen corresponding path program 537 times [2021-03-11 14:40:20,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:20,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721031165] [2021-03-11 14:40:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:20,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:20,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:20,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:20,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:20,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:20,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:20,120 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:20,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:20,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:20,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:20,164 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:20,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:20,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:20,236 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:20,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:20,281 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:20,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:20,336 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:20,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:20,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721031165] [2021-03-11 14:40:20,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:20,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:20,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681607943] [2021-03-11 14:40:20,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:20,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:20,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:20,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:20,387 INFO L87 Difference]: Start difference. First operand 1573 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:20,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:20,673 INFO L93 Difference]: Finished difference Result 2959 states and 11738 transitions. [2021-03-11 14:40:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:20,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:20,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:20,680 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:40:20,680 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:40:20,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 357.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:40:20,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1578. [2021-03-11 14:40:20,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.472415979708307) internal successors, (7053), 1577 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7053 transitions. [2021-03-11 14:40:20,729 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7053 transitions. Word has length 28 [2021-03-11 14:40:20,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:20,729 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7053 transitions. [2021-03-11 14:40:20,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:20,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7053 transitions. [2021-03-11 14:40:20,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:20,732 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:20,732 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:20,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2021-03-11 14:40:20,732 INFO L428 AbstractCegarLoop]: === Iteration 546 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:20,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:20,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1898884268, now seen corresponding path program 538 times [2021-03-11 14:40:20,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:20,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502444743] [2021-03-11 14:40:20,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:20,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:20,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:20,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:20,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:20,751 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:20,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:20,766 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:20,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:20,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:20,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:20,817 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:20,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:20,848 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:20,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:20,887 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:20,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:20,931 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:20,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:20,983 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:20,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:21,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502444743] [2021-03-11 14:40:21,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:21,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:21,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384762405] [2021-03-11 14:40:21,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:21,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:21,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:21,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:21,033 INFO L87 Difference]: Start difference. First operand 1578 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:21,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:21,311 INFO L93 Difference]: Finished difference Result 2961 states and 11737 transitions. [2021-03-11 14:40:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:21,312 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:21,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:21,319 INFO L225 Difference]: With dead ends: 2961 [2021-03-11 14:40:21,319 INFO L226 Difference]: Without dead ends: 2939 [2021-03-11 14:40:21,319 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 362.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:21,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-03-11 14:40:21,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1573. [2021-03-11 14:40:21,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.477735368956743) internal successors, (7039), 1572 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7039 transitions. [2021-03-11 14:40:21,366 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7039 transitions. Word has length 28 [2021-03-11 14:40:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:21,366 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7039 transitions. [2021-03-11 14:40:21,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7039 transitions. [2021-03-11 14:40:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:21,369 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:21,369 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:21,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2021-03-11 14:40:21,369 INFO L428 AbstractCegarLoop]: === Iteration 547 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:21,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:21,369 INFO L82 PathProgramCache]: Analyzing trace with hash 652551196, now seen corresponding path program 539 times [2021-03-11 14:40:21,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:21,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603016650] [2021-03-11 14:40:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:21,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:21,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:21,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:21,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:21,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:21,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:21,403 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:21,423 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:21,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:21,450 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:21,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:21,482 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:21,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:21,522 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:21,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:21,569 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:21,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:21,628 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:21,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:21,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:21,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603016650] [2021-03-11 14:40:21,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:21,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:21,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754627578] [2021-03-11 14:40:21,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:21,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:21,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:21,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:21,683 INFO L87 Difference]: Start difference. First operand 1573 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:21,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:21,885 INFO L93 Difference]: Finished difference Result 2972 states and 11759 transitions. [2021-03-11 14:40:21,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:21,887 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:21,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:21,893 INFO L225 Difference]: With dead ends: 2972 [2021-03-11 14:40:21,893 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:40:21,894 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 332.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:21,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:40:21,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1581. [2021-03-11 14:40:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.463924050632912) internal successors, (7053), 1580 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7053 transitions. [2021-03-11 14:40:21,941 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7053 transitions. Word has length 28 [2021-03-11 14:40:21,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:21,941 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7053 transitions. [2021-03-11 14:40:21,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7053 transitions. [2021-03-11 14:40:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:21,943 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:21,943 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:21,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2021-03-11 14:40:21,943 INFO L428 AbstractCegarLoop]: === Iteration 548 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:21,944 INFO L82 PathProgramCache]: Analyzing trace with hash 825798888, now seen corresponding path program 540 times [2021-03-11 14:40:21,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:21,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112682989] [2021-03-11 14:40:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:21,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:21,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:21,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:21,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:21,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:21,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:21,976 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:21,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:21,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:21,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:22,024 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:22,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:22,058 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:22,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:22,097 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:22,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:22,146 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:22,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:22,204 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:22,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:22,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:22,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112682989] [2021-03-11 14:40:22,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:22,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:22,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107794108] [2021-03-11 14:40:22,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:22,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:22,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:22,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:22,262 INFO L87 Difference]: Start difference. First operand 1581 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:22,519 INFO L93 Difference]: Finished difference Result 2969 states and 11746 transitions. [2021-03-11 14:40:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:22,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:22,526 INFO L225 Difference]: With dead ends: 2969 [2021-03-11 14:40:22,526 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:40:22,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 370.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:22,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:40:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1567. [2021-03-11 14:40:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.484674329501916) internal successors, (7023), 1566 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7023 transitions. [2021-03-11 14:40:22,573 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7023 transitions. Word has length 28 [2021-03-11 14:40:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:22,573 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7023 transitions. [2021-03-11 14:40:22,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7023 transitions. [2021-03-11 14:40:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:22,576 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:22,576 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:22,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2021-03-11 14:40:22,576 INFO L428 AbstractCegarLoop]: === Iteration 549 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:22,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:22,576 INFO L82 PathProgramCache]: Analyzing trace with hash -797467160, now seen corresponding path program 541 times [2021-03-11 14:40:22,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:22,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390094065] [2021-03-11 14:40:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:22,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:22,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:22,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:22,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:22,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:22,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:22,613 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:22,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:22,635 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:22,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:22,666 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:22,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:22,699 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:22,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:22,749 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:22,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:22,804 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:22,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:22,866 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:22,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:22,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390094065] [2021-03-11 14:40:22,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:22,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:22,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793842166] [2021-03-11 14:40:22,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:22,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:22,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:22,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:22,924 INFO L87 Difference]: Start difference. First operand 1567 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:23,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:23,209 INFO L93 Difference]: Finished difference Result 2941 states and 11696 transitions. [2021-03-11 14:40:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:23,211 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:23,217 INFO L225 Difference]: With dead ends: 2941 [2021-03-11 14:40:23,217 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:40:23,217 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 402.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:40:23,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1575. [2021-03-11 14:40:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.475857687420585) internal successors, (7045), 1574 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7045 transitions. [2021-03-11 14:40:23,265 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7045 transitions. Word has length 28 [2021-03-11 14:40:23,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:23,265 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7045 transitions. [2021-03-11 14:40:23,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:23,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7045 transitions. [2021-03-11 14:40:23,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:23,267 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:23,267 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:23,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2021-03-11 14:40:23,267 INFO L428 AbstractCegarLoop]: === Iteration 550 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:23,267 INFO L82 PathProgramCache]: Analyzing trace with hash -624219468, now seen corresponding path program 542 times [2021-03-11 14:40:23,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:23,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845083871] [2021-03-11 14:40:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:23,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:23,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:23,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:23,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:23,286 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:23,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:23,300 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:23,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:23,321 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:23,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:23,352 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:23,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:23,393 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:23,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:23,443 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:23,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:23,506 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:23,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:23,571 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:23,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:23,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845083871] [2021-03-11 14:40:23,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:23,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:23,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595088359] [2021-03-11 14:40:23,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:23,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:23,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:23,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:23,626 INFO L87 Difference]: Start difference. First operand 1575 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:23,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:23,881 INFO L93 Difference]: Finished difference Result 2940 states and 11690 transitions. [2021-03-11 14:40:23,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:23,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:23,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:23,888 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:40:23,888 INFO L226 Difference]: Without dead ends: 2922 [2021-03-11 14:40:23,888 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 419.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2021-03-11 14:40:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1571. [2021-03-11 14:40:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.480254777070064) internal successors, (7034), 1570 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7034 transitions. [2021-03-11 14:40:23,936 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7034 transitions. Word has length 28 [2021-03-11 14:40:23,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:23,936 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7034 transitions. [2021-03-11 14:40:23,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7034 transitions. [2021-03-11 14:40:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:23,938 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:23,938 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:23,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2021-03-11 14:40:23,938 INFO L428 AbstractCegarLoop]: === Iteration 551 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:23,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:23,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1870552540, now seen corresponding path program 543 times [2021-03-11 14:40:23,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:23,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213590387] [2021-03-11 14:40:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:23,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:23,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:23,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:23,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:23,956 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:23,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:23,968 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:23,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:23,987 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:23,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:24,012 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:24,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:24,044 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:24,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:24,083 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:24,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:24,132 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:24,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:24,188 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:24,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:24,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213590387] [2021-03-11 14:40:24,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:24,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:24,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662413971] [2021-03-11 14:40:24,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:24,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:24,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:24,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:24,242 INFO L87 Difference]: Start difference. First operand 1571 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:24,477 INFO L93 Difference]: Finished difference Result 2945 states and 11701 transitions. [2021-03-11 14:40:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:24,485 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:40:24,485 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:40:24,485 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 364.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:24,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:40:24,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1576. [2021-03-11 14:40:24,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.471746031746032) internal successors, (7043), 1575 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7043 transitions. [2021-03-11 14:40:24,532 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7043 transitions. Word has length 28 [2021-03-11 14:40:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:24,532 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7043 transitions. [2021-03-11 14:40:24,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7043 transitions. [2021-03-11 14:40:24,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:24,534 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:24,534 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:24,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2021-03-11 14:40:24,534 INFO L428 AbstractCegarLoop]: === Iteration 552 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash -207899852, now seen corresponding path program 544 times [2021-03-11 14:40:24,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:24,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403720694] [2021-03-11 14:40:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:24,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:24,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:24,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:24,552 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:24,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:24,566 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:24,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:24,586 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:24,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:24,614 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:24,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:24,645 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:24,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:24,685 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:24,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:24,733 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:24,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:24,791 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:24,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:24,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403720694] [2021-03-11 14:40:24,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:24,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:24,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251868694] [2021-03-11 14:40:24,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:24,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:24,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:24,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:24,845 INFO L87 Difference]: Start difference. First operand 1576 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:25,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:25,069 INFO L93 Difference]: Finished difference Result 2947 states and 11700 transitions. [2021-03-11 14:40:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:25,071 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:25,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:25,076 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:40:25,077 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:40:25,077 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 368.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:40:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1571. [2021-03-11 14:40:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.477707006369426) internal successors, (7030), 1570 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7030 transitions. [2021-03-11 14:40:25,124 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7030 transitions. Word has length 28 [2021-03-11 14:40:25,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:25,124 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7030 transitions. [2021-03-11 14:40:25,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:25,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7030 transitions. [2021-03-11 14:40:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:25,126 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:25,126 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:25,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2021-03-11 14:40:25,126 INFO L428 AbstractCegarLoop]: === Iteration 553 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:25,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:25,126 INFO L82 PathProgramCache]: Analyzing trace with hash -621593692, now seen corresponding path program 545 times [2021-03-11 14:40:25,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:25,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646921908] [2021-03-11 14:40:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:25,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:25,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:25,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:25,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:25,144 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:25,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:25,160 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:25,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:25,182 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:25,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:25,208 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:25,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:25,245 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:25,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:25,284 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:25,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:25,356 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:25,410 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:25,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:25,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646921908] [2021-03-11 14:40:25,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:25,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:25,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890643552] [2021-03-11 14:40:25,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:25,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:25,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:25,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:25,460 INFO L87 Difference]: Start difference. First operand 1571 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:25,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:25,702 INFO L93 Difference]: Finished difference Result 2942 states and 11690 transitions. [2021-03-11 14:40:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:25,703 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:25,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:25,709 INFO L225 Difference]: With dead ends: 2942 [2021-03-11 14:40:25,709 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:40:25,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 397.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:40:25,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1575. [2021-03-11 14:40:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.4707750952986025) internal successors, (7037), 1574 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:25,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7037 transitions. [2021-03-11 14:40:25,755 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7037 transitions. Word has length 28 [2021-03-11 14:40:25,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:25,755 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7037 transitions. [2021-03-11 14:40:25,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7037 transitions. [2021-03-11 14:40:25,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:25,758 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:25,758 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:25,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2021-03-11 14:40:25,758 INFO L428 AbstractCegarLoop]: === Iteration 554 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:25,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:25,758 INFO L82 PathProgramCache]: Analyzing trace with hash 867811304, now seen corresponding path program 546 times [2021-03-11 14:40:25,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:25,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306082256] [2021-03-11 14:40:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:25,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:25,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:25,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:25,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:25,776 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:25,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:25,789 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:25,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:25,808 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:25,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:25,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:25,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:25,864 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:25,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:25,902 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:25,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:25,975 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:25,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:26,031 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:26,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:26,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306082256] [2021-03-11 14:40:26,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:26,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:26,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264994235] [2021-03-11 14:40:26,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:26,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:26,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:26,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:26,083 INFO L87 Difference]: Start difference. First operand 1575 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:26,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:26,316 INFO L93 Difference]: Finished difference Result 2945 states and 11692 transitions. [2021-03-11 14:40:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:26,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:26,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:26,322 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:40:26,323 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:40:26,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 387.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:26,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:40:26,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1567. [2021-03-11 14:40:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.482120051085569) internal successors, (7019), 1566 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:26,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7019 transitions. [2021-03-11 14:40:26,370 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7019 transitions. Word has length 28 [2021-03-11 14:40:26,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:26,370 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7019 transitions. [2021-03-11 14:40:26,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:26,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7019 transitions. [2021-03-11 14:40:26,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:26,372 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:26,372 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:26,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2021-03-11 14:40:26,372 INFO L428 AbstractCegarLoop]: === Iteration 555 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:26,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:26,373 INFO L82 PathProgramCache]: Analyzing trace with hash 712944044, now seen corresponding path program 547 times [2021-03-11 14:40:26,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:26,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165366455] [2021-03-11 14:40:26,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:26,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:26,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:26,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:26,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:26,391 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:26,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:26,405 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:26,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:26,424 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:26,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:26,449 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:26,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:26,479 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:26,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:26,539 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:26,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:26,606 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:26,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:26,663 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:26,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:26,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165366455] [2021-03-11 14:40:26,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:26,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:26,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543050301] [2021-03-11 14:40:26,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:26,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:26,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:26,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:26,715 INFO L87 Difference]: Start difference. First operand 1567 states and 7019 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:26,932 INFO L93 Difference]: Finished difference Result 2962 states and 11734 transitions. [2021-03-11 14:40:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:26,933 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:26,939 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:40:26,939 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:40:26,939 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 362.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:26,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:40:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1577. [2021-03-11 14:40:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.470177664974619) internal successors, (7045), 1576 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7045 transitions. [2021-03-11 14:40:26,988 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7045 transitions. Word has length 28 [2021-03-11 14:40:26,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:26,988 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7045 transitions. [2021-03-11 14:40:26,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7045 transitions. [2021-03-11 14:40:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:26,991 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:26,991 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:26,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2021-03-11 14:40:26,991 INFO L428 AbstractCegarLoop]: === Iteration 556 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:26,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:26,991 INFO L82 PathProgramCache]: Analyzing trace with hash -603213260, now seen corresponding path program 548 times [2021-03-11 14:40:26,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:26,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273512406] [2021-03-11 14:40:26,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:27,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:27,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:27,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:27,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:27,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:27,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:27,022 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:27,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:27,042 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:27,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:27,068 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:27,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:27,099 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:27,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:27,165 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:27,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:27,245 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:27,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:27,301 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:27,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:27,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273512406] [2021-03-11 14:40:27,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:27,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:27,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336954868] [2021-03-11 14:40:27,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:27,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:27,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:27,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:27,353 INFO L87 Difference]: Start difference. First operand 1577 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:27,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:27,581 INFO L93 Difference]: Finished difference Result 2956 states and 11718 transitions. [2021-03-11 14:40:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:27,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:27,588 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:40:27,588 INFO L226 Difference]: Without dead ends: 2937 [2021-03-11 14:40:27,588 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 417.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:27,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-03-11 14:40:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1572. [2021-03-11 14:40:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.476129853596436) internal successors, (7032), 1571 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:27,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7032 transitions. [2021-03-11 14:40:27,634 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7032 transitions. Word has length 28 [2021-03-11 14:40:27,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:27,634 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7032 transitions. [2021-03-11 14:40:27,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7032 transitions. [2021-03-11 14:40:27,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:27,637 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:27,637 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:27,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2021-03-11 14:40:27,637 INFO L428 AbstractCegarLoop]: === Iteration 557 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:27,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:27,637 INFO L82 PathProgramCache]: Analyzing trace with hash -360141336, now seen corresponding path program 549 times [2021-03-11 14:40:27,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:27,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074589974] [2021-03-11 14:40:27,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:27,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:27,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:27,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:27,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:27,655 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:27,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:27,668 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:27,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:27,688 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:27,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:27,713 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:27,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:27,745 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:27,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:27,818 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:27,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:27,869 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:27,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:27,928 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:27,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:27,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074589974] [2021-03-11 14:40:27,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:27,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:27,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248901694] [2021-03-11 14:40:27,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:27,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:27,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:27,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:27,981 INFO L87 Difference]: Start difference. First operand 1572 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:28,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:28,199 INFO L93 Difference]: Finished difference Result 2968 states and 11744 transitions. [2021-03-11 14:40:28,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:28,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:28,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:28,206 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:40:28,206 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:40:28,206 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 364.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:28,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:40:28,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1580. [2021-03-11 14:40:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.462317922735909) internal successors, (7046), 1579 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7046 transitions. [2021-03-11 14:40:28,253 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7046 transitions. Word has length 28 [2021-03-11 14:40:28,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:28,253 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7046 transitions. [2021-03-11 14:40:28,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7046 transitions. [2021-03-11 14:40:28,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:28,256 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:28,256 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:28,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2021-03-11 14:40:28,256 INFO L428 AbstractCegarLoop]: === Iteration 558 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:28,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:28,256 INFO L82 PathProgramCache]: Analyzing trace with hash -186893644, now seen corresponding path program 550 times [2021-03-11 14:40:28,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:28,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374681896] [2021-03-11 14:40:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:28,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:28,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:28,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:28,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:28,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:28,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:28,288 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:28,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:28,307 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:28,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:28,333 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:28,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:28,364 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:28,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:28,426 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:28,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:28,474 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:28,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:28,532 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:28,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:28,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374681896] [2021-03-11 14:40:28,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:28,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:28,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046286714] [2021-03-11 14:40:28,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:28,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:28,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:28,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:28,587 INFO L87 Difference]: Start difference. First operand 1580 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:28,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:28,891 INFO L93 Difference]: Finished difference Result 2965 states and 11731 transitions. [2021-03-11 14:40:28,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:28,892 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:28,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:28,898 INFO L225 Difference]: With dead ends: 2965 [2021-03-11 14:40:28,898 INFO L226 Difference]: Without dead ends: 2940 [2021-03-11 14:40:28,898 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 387.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:28,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-03-11 14:40:28,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1572. [2021-03-11 14:40:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.472947167409293) internal successors, (7027), 1571 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7027 transitions. [2021-03-11 14:40:28,948 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7027 transitions. Word has length 28 [2021-03-11 14:40:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:28,948 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7027 transitions. [2021-03-11 14:40:28,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7027 transitions. [2021-03-11 14:40:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:28,950 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:28,950 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:28,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2021-03-11 14:40:28,950 INFO L428 AbstractCegarLoop]: === Iteration 559 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:28,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:28,950 INFO L82 PathProgramCache]: Analyzing trace with hash 472497896, now seen corresponding path program 551 times [2021-03-11 14:40:28,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:28,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815949959] [2021-03-11 14:40:28,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:28,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:28,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:28,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:28,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:28,970 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:28,984 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:28,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:29,005 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:29,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:29,032 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:29,064 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:29,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:29,127 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:29,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:29,202 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:29,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:29,267 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:29,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:29,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815949959] [2021-03-11 14:40:29,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:29,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:29,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784089389] [2021-03-11 14:40:29,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:29,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:29,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:29,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:29,319 INFO L87 Difference]: Start difference. First operand 1572 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:29,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:29,560 INFO L93 Difference]: Finished difference Result 2952 states and 11706 transitions. [2021-03-11 14:40:29,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:29,561 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:29,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:29,567 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:40:29,567 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:40:29,567 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 425.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:29,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:40:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1576. [2021-03-11 14:40:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.466031746031746) internal successors, (7034), 1575 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7034 transitions. [2021-03-11 14:40:29,620 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7034 transitions. Word has length 28 [2021-03-11 14:40:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:29,620 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7034 transitions. [2021-03-11 14:40:29,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7034 transitions. [2021-03-11 14:40:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:29,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:29,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:29,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2021-03-11 14:40:29,622 INFO L428 AbstractCegarLoop]: === Iteration 560 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:29,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1961902892, now seen corresponding path program 552 times [2021-03-11 14:40:29,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:29,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833262606] [2021-03-11 14:40:29,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:29,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:29,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:29,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:29,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:29,644 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:29,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:29,663 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:29,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:29,688 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:29,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:29,715 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:29,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:29,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:29,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:29,818 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:29,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:29,919 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:29,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:29,979 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:29,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:30,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833262606] [2021-03-11 14:40:30,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:30,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:30,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994184186] [2021-03-11 14:40:30,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:30,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:30,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:30,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:30,039 INFO L87 Difference]: Start difference. First operand 1576 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:30,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:30,378 INFO L93 Difference]: Finished difference Result 2955 states and 11708 transitions. [2021-03-11 14:40:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:30,380 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:30,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:30,385 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:40:30,385 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:40:30,385 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 475.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:30,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:40:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1562. [2021-03-11 14:40:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 4.48750800768738) internal successors, (7005), 1561 states have internal predecessors, (7005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 7005 transitions. [2021-03-11 14:40:30,432 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 7005 transitions. Word has length 28 [2021-03-11 14:40:30,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:30,432 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 7005 transitions. [2021-03-11 14:40:30,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:30,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 7005 transitions. [2021-03-11 14:40:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:30,434 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:30,434 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:30,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2021-03-11 14:40:30,434 INFO L428 AbstractCegarLoop]: === Iteration 561 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:30,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:30,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2966018, now seen corresponding path program 553 times [2021-03-11 14:40:30,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:30,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981094902] [2021-03-11 14:40:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:30,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:30,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:30,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:30,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:30,454 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:30,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:30,469 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:30,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:30,490 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:30,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:30,515 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:30,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:30,547 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:30,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:30,613 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:30,692 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:30,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:30,755 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:30,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:30,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:30,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981094902] [2021-03-11 14:40:30,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:30,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:30,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601542535] [2021-03-11 14:40:30,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:30,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:30,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:30,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:30,810 INFO L87 Difference]: Start difference. First operand 1562 states and 7005 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:31,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:31,110 INFO L93 Difference]: Finished difference Result 2938 states and 11692 transitions. [2021-03-11 14:40:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:31,112 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:31,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:31,118 INFO L225 Difference]: With dead ends: 2938 [2021-03-11 14:40:31,118 INFO L226 Difference]: Without dead ends: 2923 [2021-03-11 14:40:31,118 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 439.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-03-11 14:40:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1575. [2021-03-11 14:40:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.477763659466328) internal successors, (7048), 1574 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:31,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7048 transitions. [2021-03-11 14:40:31,167 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7048 transitions. Word has length 28 [2021-03-11 14:40:31,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:31,167 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7048 transitions. [2021-03-11 14:40:31,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:31,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7048 transitions. [2021-03-11 14:40:31,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:31,169 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:31,169 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:31,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2021-03-11 14:40:31,169 INFO L428 AbstractCegarLoop]: === Iteration 562 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:31,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:31,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2057893784, now seen corresponding path program 554 times [2021-03-11 14:40:31,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:31,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325998804] [2021-03-11 14:40:31,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:31,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:31,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:31,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:31,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:31,189 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:31,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:31,204 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:31,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:31,228 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:31,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:31,258 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:31,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:31,291 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:31,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:31,358 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:31,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:31,445 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:31,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:31,506 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:31,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:31,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:31,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325998804] [2021-03-11 14:40:31,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:31,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:31,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114504052] [2021-03-11 14:40:31,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:31,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:31,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:31,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:31,561 INFO L87 Difference]: Start difference. First operand 1575 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:31,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:31,889 INFO L93 Difference]: Finished difference Result 2941 states and 11693 transitions. [2021-03-11 14:40:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:31,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:31,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:31,896 INFO L225 Difference]: With dead ends: 2941 [2021-03-11 14:40:31,897 INFO L226 Difference]: Without dead ends: 2918 [2021-03-11 14:40:31,897 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 462.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-03-11 14:40:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1570. [2021-03-11 14:40:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.483747609942639) internal successors, (7035), 1569 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7035 transitions. [2021-03-11 14:40:31,945 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7035 transitions. Word has length 28 [2021-03-11 14:40:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:31,945 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7035 transitions. [2021-03-11 14:40:31,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7035 transitions. [2021-03-11 14:40:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:31,947 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:31,947 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:31,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2021-03-11 14:40:31,947 INFO L428 AbstractCegarLoop]: === Iteration 563 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:31,947 INFO L82 PathProgramCache]: Analyzing trace with hash 540821596, now seen corresponding path program 555 times [2021-03-11 14:40:31,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:31,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162952400] [2021-03-11 14:40:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:31,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:31,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:31,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:31,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:31,967 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:31,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:31,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:31,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:32,006 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:32,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:32,036 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:32,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:32,072 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:32,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:32,144 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:32,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:32,195 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:32,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:32,254 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:32,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:32,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162952400] [2021-03-11 14:40:32,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:32,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:32,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760864972] [2021-03-11 14:40:32,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:32,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:32,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:32,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:32,312 INFO L87 Difference]: Start difference. First operand 1570 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:32,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:32,628 INFO L93 Difference]: Finished difference Result 2933 states and 11677 transitions. [2021-03-11 14:40:32,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:32,630 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:32,635 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:40:32,635 INFO L226 Difference]: Without dead ends: 2918 [2021-03-11 14:40:32,636 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 421.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-03-11 14:40:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1574. [2021-03-11 14:40:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.476795931341386) internal successors, (7042), 1573 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:32,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7042 transitions. [2021-03-11 14:40:32,683 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7042 transitions. Word has length 28 [2021-03-11 14:40:32,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:32,683 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7042 transitions. [2021-03-11 14:40:32,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7042 transitions. [2021-03-11 14:40:32,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:32,685 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:32,685 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:32,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2021-03-11 14:40:32,685 INFO L428 AbstractCegarLoop]: === Iteration 564 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:32,686 INFO L82 PathProgramCache]: Analyzing trace with hash 714069288, now seen corresponding path program 556 times [2021-03-11 14:40:32,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:32,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836443129] [2021-03-11 14:40:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:32,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:32,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:32,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:32,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:32,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:32,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:32,729 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:32,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:32,756 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:32,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:32,785 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:32,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:32,816 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:32,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:32,882 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:32,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:32,932 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:32,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:32,990 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:32,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:33,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836443129] [2021-03-11 14:40:33,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:33,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:33,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706473326] [2021-03-11 14:40:33,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:33,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:33,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:33,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:33,043 INFO L87 Difference]: Start difference. First operand 1574 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:33,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:33,355 INFO L93 Difference]: Finished difference Result 2932 states and 11671 transitions. [2021-03-11 14:40:33,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:33,362 INFO L225 Difference]: With dead ends: 2932 [2021-03-11 14:40:33,362 INFO L226 Difference]: Without dead ends: 2914 [2021-03-11 14:40:33,363 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 409.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:33,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-03-11 14:40:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1570. [2021-03-11 14:40:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.481198215423837) internal successors, (7031), 1569 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7031 transitions. [2021-03-11 14:40:33,411 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7031 transitions. Word has length 28 [2021-03-11 14:40:33,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:33,411 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7031 transitions. [2021-03-11 14:40:33,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7031 transitions. [2021-03-11 14:40:33,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:33,413 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:33,413 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:33,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2021-03-11 14:40:33,413 INFO L428 AbstractCegarLoop]: === Iteration 565 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash -982182628, now seen corresponding path program 557 times [2021-03-11 14:40:33,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:33,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312561786] [2021-03-11 14:40:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:33,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:33,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:33,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:33,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:33,432 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:33,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:33,447 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:33,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:33,471 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:33,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:33,498 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:33,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:33,532 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:33,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:33,601 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:33,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:33,682 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:33,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:33,741 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:33,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:33,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:33,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312561786] [2021-03-11 14:40:33,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:33,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:33,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397074921] [2021-03-11 14:40:33,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:33,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:33,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:33,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:33,794 INFO L87 Difference]: Start difference. First operand 1570 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:34,104 INFO L93 Difference]: Finished difference Result 2939 states and 11685 transitions. [2021-03-11 14:40:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:34,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:34,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:34,111 INFO L225 Difference]: With dead ends: 2939 [2021-03-11 14:40:34,111 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:40:34,111 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 444.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:40:34,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1574. [2021-03-11 14:40:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.474253019707565) internal successors, (7038), 1573 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7038 transitions. [2021-03-11 14:40:34,157 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7038 transitions. Word has length 28 [2021-03-11 14:40:34,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:34,157 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7038 transitions. [2021-03-11 14:40:34,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7038 transitions. [2021-03-11 14:40:34,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:34,179 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:34,179 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:34,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2021-03-11 14:40:34,179 INFO L428 AbstractCegarLoop]: === Iteration 566 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:34,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1251924866, now seen corresponding path program 558 times [2021-03-11 14:40:34,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:34,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091851694] [2021-03-11 14:40:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:34,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:34,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:34,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:34,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:34,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:34,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:34,212 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:34,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:34,231 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:34,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:34,256 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:34,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:34,287 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:34,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:34,352 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:34,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:34,430 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:34,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:34,486 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:34,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:34,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:34,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091851694] [2021-03-11 14:40:34,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:34,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:34,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575746992] [2021-03-11 14:40:34,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:34,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:34,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:34,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:34,538 INFO L87 Difference]: Start difference. First operand 1574 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:34,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:34,834 INFO L93 Difference]: Finished difference Result 2935 states and 11673 transitions. [2021-03-11 14:40:34,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:34,835 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:34,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:34,841 INFO L225 Difference]: With dead ends: 2935 [2021-03-11 14:40:34,841 INFO L226 Difference]: Without dead ends: 2913 [2021-03-11 14:40:34,841 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 418.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-03-11 14:40:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1566. [2021-03-11 14:40:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.485623003194888) internal successors, (7020), 1565 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7020 transitions. [2021-03-11 14:40:34,888 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7020 transitions. Word has length 28 [2021-03-11 14:40:34,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:34,888 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7020 transitions. [2021-03-11 14:40:34,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:34,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7020 transitions. [2021-03-11 14:40:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:34,890 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:34,890 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:34,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2021-03-11 14:40:34,890 INFO L428 AbstractCegarLoop]: === Iteration 567 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:34,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:34,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1097057606, now seen corresponding path program 559 times [2021-03-11 14:40:34,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:34,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233941752] [2021-03-11 14:40:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:34,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:34,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:34,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:34,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:34,909 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:34,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:34,922 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:34,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:34,941 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:34,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:34,967 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:34,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:34,997 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:34,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:35,041 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:35,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:35,121 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:35,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:35,181 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:35,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:35,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233941752] [2021-03-11 14:40:35,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:35,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:35,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277339113] [2021-03-11 14:40:35,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:35,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:35,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:35,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:35,233 INFO L87 Difference]: Start difference. First operand 1566 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:35,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:35,504 INFO L93 Difference]: Finished difference Result 2946 states and 11710 transitions. [2021-03-11 14:40:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:35,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:35,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:35,511 INFO L225 Difference]: With dead ends: 2946 [2021-03-11 14:40:35,511 INFO L226 Difference]: Without dead ends: 2931 [2021-03-11 14:40:35,511 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 398.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2021-03-11 14:40:35,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 1576. [2021-03-11 14:40:35,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.474920634920635) internal successors, (7048), 1575 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7048 transitions. [2021-03-11 14:40:35,557 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7048 transitions. Word has length 28 [2021-03-11 14:40:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:35,557 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7048 transitions. [2021-03-11 14:40:35,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:35,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7048 transitions. [2021-03-11 14:40:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:35,560 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:35,560 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:35,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2021-03-11 14:40:35,560 INFO L428 AbstractCegarLoop]: === Iteration 568 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:35,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:35,560 INFO L82 PathProgramCache]: Analyzing trace with hash -963802196, now seen corresponding path program 560 times [2021-03-11 14:40:35,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:35,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989980265] [2021-03-11 14:40:35,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:35,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:35,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:35,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:35,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:35,578 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:35,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:35,591 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:35,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:35,613 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:35,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:35,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:35,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:35,677 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:35,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:35,715 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:35,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:35,793 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:35,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:35,849 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:35,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:35,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989980265] [2021-03-11 14:40:35,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:35,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:35,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352707041] [2021-03-11 14:40:35,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:35,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:35,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:35,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:35,900 INFO L87 Difference]: Start difference. First operand 1576 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:36,220 INFO L93 Difference]: Finished difference Result 2949 states and 11711 transitions. [2021-03-11 14:40:36,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:36,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:36,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:36,228 INFO L225 Difference]: With dead ends: 2949 [2021-03-11 14:40:36,228 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:40:36,228 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 403.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:36,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:40:36,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1571. [2021-03-11 14:40:36,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.480254777070064) internal successors, (7034), 1570 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:36,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7034 transitions. [2021-03-11 14:40:36,276 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7034 transitions. Word has length 28 [2021-03-11 14:40:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:36,276 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7034 transitions. [2021-03-11 14:40:36,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:36,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7034 transitions. [2021-03-11 14:40:36,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:36,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:36,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:36,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2021-03-11 14:40:36,278 INFO L428 AbstractCegarLoop]: === Iteration 569 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:36,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:36,279 INFO L82 PathProgramCache]: Analyzing trace with hash 561827804, now seen corresponding path program 561 times [2021-03-11 14:40:36,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:36,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192703016] [2021-03-11 14:40:36,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:36,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:36,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:36,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:36,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:36,297 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:36,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:36,310 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:36,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:36,330 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:36,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:36,358 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:36,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:36,393 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:36,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:36,433 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:36,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:36,493 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:36,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:36,558 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:36,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:36,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192703016] [2021-03-11 14:40:36,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:36,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:36,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829360165] [2021-03-11 14:40:36,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:36,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:36,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:36,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:36,611 INFO L87 Difference]: Start difference. First operand 1571 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:36,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:36,815 INFO L93 Difference]: Finished difference Result 2945 states and 11703 transitions. [2021-03-11 14:40:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:36,816 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:36,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:36,822 INFO L225 Difference]: With dead ends: 2945 [2021-03-11 14:40:36,822 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:40:36,822 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 389.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:40:36,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1576. [2021-03-11 14:40:36,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.471746031746032) internal successors, (7043), 1575 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7043 transitions. [2021-03-11 14:40:36,868 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7043 transitions. Word has length 28 [2021-03-11 14:40:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:36,868 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7043 transitions. [2021-03-11 14:40:36,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:36,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7043 transitions. [2021-03-11 14:40:36,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:36,871 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:36,871 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:36,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2021-03-11 14:40:36,871 INFO L428 AbstractCegarLoop]: === Iteration 570 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:36,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:36,871 INFO L82 PathProgramCache]: Analyzing trace with hash -2070486804, now seen corresponding path program 562 times [2021-03-11 14:40:36,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:36,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048502486] [2021-03-11 14:40:36,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:36,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:36,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:36,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:36,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:36,891 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:36,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:36,905 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:36,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:36,925 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:36,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:36,952 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:36,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:36,984 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:36,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:37,024 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:37,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:37,075 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:37,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:37,132 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:37,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:37,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:37,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048502486] [2021-03-11 14:40:37,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:37,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:37,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856693677] [2021-03-11 14:40:37,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:37,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:37,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:37,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:37,184 INFO L87 Difference]: Start difference. First operand 1576 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:37,396 INFO L93 Difference]: Finished difference Result 2947 states and 11702 transitions. [2021-03-11 14:40:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:37,398 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:37,403 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:40:37,403 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:40:37,404 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 369.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:37,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:40:37,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1571. [2021-03-11 14:40:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.477070063694267) internal successors, (7029), 1570 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:37,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7029 transitions. [2021-03-11 14:40:37,451 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7029 transitions. Word has length 28 [2021-03-11 14:40:37,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:37,451 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7029 transitions. [2021-03-11 14:40:37,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:37,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7029 transitions. [2021-03-11 14:40:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:37,453 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:37,453 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:37,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2021-03-11 14:40:37,454 INFO L428 AbstractCegarLoop]: === Iteration 571 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:37,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:37,454 INFO L82 PathProgramCache]: Analyzing trace with hash -961176420, now seen corresponding path program 563 times [2021-03-11 14:40:37,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:37,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380546199] [2021-03-11 14:40:37,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:37,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:37,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:37,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:37,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:37,473 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:37,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:37,487 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:37,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:37,507 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:37,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:37,533 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:37,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:37,566 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:37,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:37,609 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:37,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:37,658 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:37,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:37,715 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:37,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:37,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380546199] [2021-03-11 14:40:37,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:37,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:37,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513454266] [2021-03-11 14:40:37,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:37,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:37,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:37,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:37,768 INFO L87 Difference]: Start difference. First operand 1571 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:37,991 INFO L93 Difference]: Finished difference Result 2953 states and 11716 transitions. [2021-03-11 14:40:37,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:37,993 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:37,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:37,998 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:40:37,998 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:40:37,999 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 388.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:38,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:40:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1578. [2021-03-11 14:40:38,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.465440710209258) internal successors, (7042), 1577 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7042 transitions. [2021-03-11 14:40:38,046 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7042 transitions. Word has length 28 [2021-03-11 14:40:38,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:38,046 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7042 transitions. [2021-03-11 14:40:38,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7042 transitions. [2021-03-11 14:40:38,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:38,048 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:38,048 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:38,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2021-03-11 14:40:38,048 INFO L428 AbstractCegarLoop]: === Iteration 572 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:38,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1532631226, now seen corresponding path program 564 times [2021-03-11 14:40:38,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:38,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128158217] [2021-03-11 14:40:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:38,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:38,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:38,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:38,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:38,067 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:38,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:38,080 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:38,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:38,102 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:38,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:38,130 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:38,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:38,163 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:38,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:38,203 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:38,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:38,251 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:38,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:38,308 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:38,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:38,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:38,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128158217] [2021-03-11 14:40:38,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:38,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:38,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410757454] [2021-03-11 14:40:38,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:38,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:38,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:38,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:38,361 INFO L87 Difference]: Start difference. First operand 1578 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:38,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:38,576 INFO L93 Difference]: Finished difference Result 2952 states and 11707 transitions. [2021-03-11 14:40:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:38,577 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:38,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:38,583 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:40:38,583 INFO L226 Difference]: Without dead ends: 2923 [2021-03-11 14:40:38,583 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 370.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-03-11 14:40:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1566. [2021-03-11 14:40:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.4830670926517575) internal successors, (7016), 1565 states have internal predecessors, (7016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:38,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7016 transitions. [2021-03-11 14:40:38,629 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7016 transitions. Word has length 28 [2021-03-11 14:40:38,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:38,629 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7016 transitions. [2021-03-11 14:40:38,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7016 transitions. [2021-03-11 14:40:38,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:38,631 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:38,631 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:38,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2021-03-11 14:40:38,632 INFO L428 AbstractCegarLoop]: === Iteration 573 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:38,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:38,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1128566918, now seen corresponding path program 565 times [2021-03-11 14:40:38,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:38,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186250826] [2021-03-11 14:40:38,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:38,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:38,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:38,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:38,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:38,650 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:38,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:38,664 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:38,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:38,684 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:38,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:38,709 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:38,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:38,741 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:38,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:38,780 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:38,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:38,827 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:38,887 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:38,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:38,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:38,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186250826] [2021-03-11 14:40:38,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:38,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:38,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817050482] [2021-03-11 14:40:38,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:38,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:38,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:38,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:38,946 INFO L87 Difference]: Start difference. First operand 1566 states and 7016 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:39,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:39,155 INFO L93 Difference]: Finished difference Result 2932 states and 11671 transitions. [2021-03-11 14:40:39,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:39,157 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:39,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:39,163 INFO L225 Difference]: With dead ends: 2932 [2021-03-11 14:40:39,163 INFO L226 Difference]: Without dead ends: 2917 [2021-03-11 14:40:39,163 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 372.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:39,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2021-03-11 14:40:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1574. [2021-03-11 14:40:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.474253019707565) internal successors, (7038), 1573 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7038 transitions. [2021-03-11 14:40:39,214 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7038 transitions. Word has length 28 [2021-03-11 14:40:39,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:39,214 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7038 transitions. [2021-03-11 14:40:39,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:39,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7038 transitions. [2021-03-11 14:40:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:39,216 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:39,216 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:39,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2021-03-11 14:40:39,216 INFO L428 AbstractCegarLoop]: === Iteration 574 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:39,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1301814610, now seen corresponding path program 566 times [2021-03-11 14:40:39,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:39,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101004952] [2021-03-11 14:40:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:39,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:39,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:39,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:39,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:39,236 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:39,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:39,251 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:39,271 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:39,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:39,299 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:39,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:39,332 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:39,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:39,371 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:39,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:39,419 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:39,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:39,476 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:39,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:39,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:39,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101004952] [2021-03-11 14:40:39,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:39,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:39,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654813144] [2021-03-11 14:40:39,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:39,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:39,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:39,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:39,544 INFO L87 Difference]: Start difference. First operand 1574 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:39,783 INFO L93 Difference]: Finished difference Result 2931 states and 11665 transitions. [2021-03-11 14:40:39,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:39,784 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:39,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:39,790 INFO L225 Difference]: With dead ends: 2931 [2021-03-11 14:40:39,790 INFO L226 Difference]: Without dead ends: 2913 [2021-03-11 14:40:39,790 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 384.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:39,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-03-11 14:40:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1570. [2021-03-11 14:40:39,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.478648820905035) internal successors, (7027), 1569 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7027 transitions. [2021-03-11 14:40:39,837 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7027 transitions. Word has length 28 [2021-03-11 14:40:39,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:39,838 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7027 transitions. [2021-03-11 14:40:39,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:39,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7027 transitions. [2021-03-11 14:40:39,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:39,840 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:39,840 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:39,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2021-03-11 14:40:39,840 INFO L428 AbstractCegarLoop]: === Iteration 575 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:39,840 INFO L82 PathProgramCache]: Analyzing trace with hash 55481538, now seen corresponding path program 567 times [2021-03-11 14:40:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:39,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861150568] [2021-03-11 14:40:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:39,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:39,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:39,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:39,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:39,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:39,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:39,880 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:39,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:39,907 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:39,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:39,938 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:39,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:39,979 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:39,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:40,022 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:40,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:40,071 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:40,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:40,129 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:40,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:40,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:40,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861150568] [2021-03-11 14:40:40,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:40,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:40,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293109581] [2021-03-11 14:40:40,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:40,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:40,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:40,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:40,183 INFO L87 Difference]: Start difference. First operand 1570 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:40,412 INFO L93 Difference]: Finished difference Result 2936 states and 11676 transitions. [2021-03-11 14:40:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:40,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:40,420 INFO L225 Difference]: With dead ends: 2936 [2021-03-11 14:40:40,420 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:40:40,420 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 401.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:40:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1575. [2021-03-11 14:40:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.470139771283354) internal successors, (7036), 1574 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7036 transitions. [2021-03-11 14:40:40,468 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7036 transitions. Word has length 28 [2021-03-11 14:40:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:40,468 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7036 transitions. [2021-03-11 14:40:40,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7036 transitions. [2021-03-11 14:40:40,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:40,470 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:40,470 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:40,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2021-03-11 14:40:40,470 INFO L428 AbstractCegarLoop]: === Iteration 576 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:40,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1718134226, now seen corresponding path program 568 times [2021-03-11 14:40:40,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:40,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307456489] [2021-03-11 14:40:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:40,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:40,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:40,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:40,491 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:40,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:40,506 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:40,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:40,529 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:40,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:40,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:40,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:40,605 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:40,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:40,650 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:40,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:40,702 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:40,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:40,764 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:40,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:40,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307456489] [2021-03-11 14:40:40,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:40,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:40,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522636696] [2021-03-11 14:40:40,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:40,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:40,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:40,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:40,820 INFO L87 Difference]: Start difference. First operand 1575 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:41,068 INFO L93 Difference]: Finished difference Result 2938 states and 11675 transitions. [2021-03-11 14:40:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:41,069 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:41,075 INFO L225 Difference]: With dead ends: 2938 [2021-03-11 14:40:41,075 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:40:41,075 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 422.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:41,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:40:41,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1570. [2021-03-11 14:40:41,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4760994263862335) internal successors, (7023), 1569 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7023 transitions. [2021-03-11 14:40:41,123 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7023 transitions. Word has length 28 [2021-03-11 14:40:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:41,123 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7023 transitions. [2021-03-11 14:40:41,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7023 transitions. [2021-03-11 14:40:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:41,126 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:41,126 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:41,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2021-03-11 14:40:41,126 INFO L428 AbstractCegarLoop]: === Iteration 577 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:41,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:41,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1304440386, now seen corresponding path program 569 times [2021-03-11 14:40:41,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:41,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343118792] [2021-03-11 14:40:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:41,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:41,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:41,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:41,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:41,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:41,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:41,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:41,182 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:41,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:41,208 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:41,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:41,241 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:41,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:41,285 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:41,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:41,369 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:41,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:41,435 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:41,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343118792] [2021-03-11 14:40:41,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:41,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:41,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619211777] [2021-03-11 14:40:41,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:41,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:41,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:41,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:41,495 INFO L87 Difference]: Start difference. First operand 1570 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:41,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:41,741 INFO L93 Difference]: Finished difference Result 2933 states and 11665 transitions. [2021-03-11 14:40:41,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:41,743 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:41,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:41,750 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:40:41,750 INFO L226 Difference]: Without dead ends: 2919 [2021-03-11 14:40:41,750 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 441.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:41,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2021-03-11 14:40:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1574. [2021-03-11 14:40:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4691671964399236) internal successors, (7030), 1573 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7030 transitions. [2021-03-11 14:40:41,802 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7030 transitions. Word has length 28 [2021-03-11 14:40:41,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:41,802 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7030 transitions. [2021-03-11 14:40:41,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7030 transitions. [2021-03-11 14:40:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:41,804 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:41,804 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:41,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2021-03-11 14:40:41,804 INFO L428 AbstractCegarLoop]: === Iteration 578 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:41,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:41,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1501121914, now seen corresponding path program 570 times [2021-03-11 14:40:41,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:41,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15437287] [2021-03-11 14:40:41,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:41,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:41,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:41,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:41,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:41,826 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:41,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:41,843 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:41,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:41,868 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:41,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:41,900 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:41,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:41,938 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:41,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:41,985 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:41,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:42,077 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:42,146 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:42,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:42,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15437287] [2021-03-11 14:40:42,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:42,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:42,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487451085] [2021-03-11 14:40:42,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:42,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:42,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:42,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:42,207 INFO L87 Difference]: Start difference. First operand 1574 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:42,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:42,471 INFO L93 Difference]: Finished difference Result 2936 states and 11667 transitions. [2021-03-11 14:40:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:42,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:42,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:42,479 INFO L225 Difference]: With dead ends: 2936 [2021-03-11 14:40:42,479 INFO L226 Difference]: Without dead ends: 2911 [2021-03-11 14:40:42,479 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 472.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:42,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-11 14:40:42,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 1566. [2021-03-11 14:40:42,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.480511182108626) internal successors, (7012), 1565 states have internal predecessors, (7012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:42,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7012 transitions. [2021-03-11 14:40:42,529 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7012 transitions. Word has length 28 [2021-03-11 14:40:42,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:42,529 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7012 transitions. [2021-03-11 14:40:42,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:42,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7012 transitions. [2021-03-11 14:40:42,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:42,532 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:42,532 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:42,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2021-03-11 14:40:42,532 INFO L428 AbstractCegarLoop]: === Iteration 579 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:42,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:42,532 INFO L82 PathProgramCache]: Analyzing trace with hash -900783572, now seen corresponding path program 571 times [2021-03-11 14:40:42,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:42,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297137043] [2021-03-11 14:40:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:42,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:42,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:42,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:42,553 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:42,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:42,569 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:42,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:42,592 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:42,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:42,619 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:42,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:42,655 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:42,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:42,725 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:42,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:42,816 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:42,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:42,883 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:42,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:42,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297137043] [2021-03-11 14:40:42,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:42,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:42,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797736844] [2021-03-11 14:40:42,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:42,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:42,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:42,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:42,943 INFO L87 Difference]: Start difference. First operand 1566 states and 7012 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:43,178 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:40:43,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:43,199 INFO L93 Difference]: Finished difference Result 2943 states and 11691 transitions. [2021-03-11 14:40:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:43,201 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:43,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:43,207 INFO L225 Difference]: With dead ends: 2943 [2021-03-11 14:40:43,207 INFO L226 Difference]: Without dead ends: 2925 [2021-03-11 14:40:43,207 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 488.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-03-11 14:40:43,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1574. [2021-03-11 14:40:43,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4717101080737445) internal successors, (7034), 1573 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:43,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7034 transitions. [2021-03-11 14:40:43,259 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7034 transitions. Word has length 28 [2021-03-11 14:40:43,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:43,259 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7034 transitions. [2021-03-11 14:40:43,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:43,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7034 transitions. [2021-03-11 14:40:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:43,261 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:43,262 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:43,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2021-03-11 14:40:43,262 INFO L428 AbstractCegarLoop]: === Iteration 580 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:43,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:43,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1333323922, now seen corresponding path program 572 times [2021-03-11 14:40:43,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:43,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199441545] [2021-03-11 14:40:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:43,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:43,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:43,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:43,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:43,283 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:43,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:43,300 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:43,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:43,324 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:43,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:43,357 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:43,390 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:43,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:43,457 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:43,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:43,541 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:43,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:43,601 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:43,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:43,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199441545] [2021-03-11 14:40:43,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:43,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:43,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737257819] [2021-03-11 14:40:43,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:43,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:43,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:43,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:43,656 INFO L87 Difference]: Start difference. First operand 1574 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:43,870 INFO L93 Difference]: Finished difference Result 2939 states and 11679 transitions. [2021-03-11 14:40:43,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:43,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:43,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:43,877 INFO L225 Difference]: With dead ends: 2939 [2021-03-11 14:40:43,877 INFO L226 Difference]: Without dead ends: 2921 [2021-03-11 14:40:43,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 449.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2021-03-11 14:40:43,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1570. [2021-03-11 14:40:43,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4760994263862335) internal successors, (7023), 1569 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7023 transitions. [2021-03-11 14:40:43,923 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7023 transitions. Word has length 28 [2021-03-11 14:40:43,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:43,923 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7023 transitions. [2021-03-11 14:40:43,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7023 transitions. [2021-03-11 14:40:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:43,925 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:43,925 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:43,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2021-03-11 14:40:43,925 INFO L428 AbstractCegarLoop]: === Iteration 581 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:43,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:43,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1973868952, now seen corresponding path program 573 times [2021-03-11 14:40:43,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:43,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251934106] [2021-03-11 14:40:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:43,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:43,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:43,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:43,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:43,944 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:43,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:43,959 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:43,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:43,980 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:43,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:44,005 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:44,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:44,037 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:44,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:44,100 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:44,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:44,148 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:44,206 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:44,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:44,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251934106] [2021-03-11 14:40:44,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:44,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:44,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127913898] [2021-03-11 14:40:44,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:44,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:44,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:44,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:44,260 INFO L87 Difference]: Start difference. First operand 1570 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:44,490 INFO L93 Difference]: Finished difference Result 2949 states and 11702 transitions. [2021-03-11 14:40:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:44,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:44,498 INFO L225 Difference]: With dead ends: 2949 [2021-03-11 14:40:44,498 INFO L226 Difference]: Without dead ends: 2931 [2021-03-11 14:40:44,498 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 400.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2021-03-11 14:40:44,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 1577. [2021-03-11 14:40:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.464467005076142) internal successors, (7036), 1576 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7036 transitions. [2021-03-11 14:40:44,545 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7036 transitions. Word has length 28 [2021-03-11 14:40:44,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:44,545 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7036 transitions. [2021-03-11 14:40:44,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7036 transitions. [2021-03-11 14:40:44,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:44,547 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:44,547 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:44,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2021-03-11 14:40:44,547 INFO L428 AbstractCegarLoop]: === Iteration 582 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:44,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:44,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1749643538, now seen corresponding path program 574 times [2021-03-11 14:40:44,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:44,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155870300] [2021-03-11 14:40:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:44,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:44,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:44,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:44,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:44,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:44,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:44,581 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:44,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:44,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:44,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:44,629 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:44,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:44,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:44,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:44,730 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:44,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:44,781 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:44,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:44,844 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:44,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:44,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155870300] [2021-03-11 14:40:44,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:44,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:44,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778087919] [2021-03-11 14:40:44,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:44,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:44,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:44,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:44,900 INFO L87 Difference]: Start difference. First operand 1577 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:45,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:45,131 INFO L93 Difference]: Finished difference Result 2948 states and 11693 transitions. [2021-03-11 14:40:45,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:45,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:45,139 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:40:45,139 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:40:45,139 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 413.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:40:45,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1570. [2021-03-11 14:40:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.473550031867432) internal successors, (7019), 1569 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:45,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7019 transitions. [2021-03-11 14:40:45,187 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7019 transitions. Word has length 28 [2021-03-11 14:40:45,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:45,187 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7019 transitions. [2021-03-11 14:40:45,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:45,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7019 transitions. [2021-03-11 14:40:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:45,189 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:45,189 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:45,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2021-03-11 14:40:45,189 INFO L428 AbstractCegarLoop]: === Iteration 583 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:45,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:45,190 INFO L82 PathProgramCache]: Analyzing trace with hash 798094120, now seen corresponding path program 575 times [2021-03-11 14:40:45,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:45,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757063954] [2021-03-11 14:40:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:45,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:45,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:45,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:45,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:45,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:45,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:45,224 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:45,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:45,246 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:45,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:45,272 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:45,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:45,305 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:45,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:45,374 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:45,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:45,455 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:45,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:45,516 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:45,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:45,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757063954] [2021-03-11 14:40:45,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:45,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:45,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090057210] [2021-03-11 14:40:45,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:45,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:45,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:45,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:45,569 INFO L87 Difference]: Start difference. First operand 1570 states and 7019 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:45,854 INFO L93 Difference]: Finished difference Result 2938 states and 11673 transitions. [2021-03-11 14:40:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:45,855 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:45,861 INFO L225 Difference]: With dead ends: 2938 [2021-03-11 14:40:45,861 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:40:45,861 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 441.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:45,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:40:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1574. [2021-03-11 14:40:45,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.466624284806103) internal successors, (7026), 1573 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7026 transitions. [2021-03-11 14:40:45,908 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7026 transitions. Word has length 28 [2021-03-11 14:40:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:45,908 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7026 transitions. [2021-03-11 14:40:45,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7026 transitions. [2021-03-11 14:40:45,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:45,910 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:45,910 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:45,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2021-03-11 14:40:45,910 INFO L428 AbstractCegarLoop]: === Iteration 584 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:45,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:45,911 INFO L82 PathProgramCache]: Analyzing trace with hash -2007468180, now seen corresponding path program 576 times [2021-03-11 14:40:45,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:45,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374969091] [2021-03-11 14:40:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:45,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:45,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:45,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:45,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:45,938 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:45,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:45,953 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:45,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:45,976 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:45,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:46,005 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:40:46,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:40:46,042 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:46,114 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:46,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:46,200 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:46,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:46,262 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:46,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:46,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374969091] [2021-03-11 14:40:46,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:46,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:46,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301608794] [2021-03-11 14:40:46,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:46,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:46,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:46,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:46,320 INFO L87 Difference]: Start difference. First operand 1574 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:46,575 INFO L93 Difference]: Finished difference Result 2941 states and 11675 transitions. [2021-03-11 14:40:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:46,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:46,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:46,582 INFO L225 Difference]: With dead ends: 2941 [2021-03-11 14:40:46,582 INFO L226 Difference]: Without dead ends: 2912 [2021-03-11 14:40:46,582 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 462.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:46,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2021-03-11 14:40:46,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1562. [2021-03-11 14:40:46,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 4.484945547725816) internal successors, (7001), 1561 states have internal predecessors, (7001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 7001 transitions. [2021-03-11 14:40:46,629 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 7001 transitions. Word has length 28 [2021-03-11 14:40:46,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:46,629 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 7001 transitions. [2021-03-11 14:40:46,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:46,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 7001 transitions. [2021-03-11 14:40:46,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:46,632 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:46,632 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:46,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2021-03-11 14:40:46,632 INFO L428 AbstractCegarLoop]: === Iteration 585 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:46,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:46,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1070478082, now seen corresponding path program 577 times [2021-03-11 14:40:46,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:46,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694927039] [2021-03-11 14:40:46,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:46,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:46,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:46,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:46,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:46,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:46,667 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:46,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:46,688 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:46,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:46,716 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:46,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:46,777 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:46,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:46,853 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:46,908 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:46,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:46,971 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:46,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:47,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694927039] [2021-03-11 14:40:47,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:47,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:47,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425220812] [2021-03-11 14:40:47,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:47,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:47,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:47,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:47,027 INFO L87 Difference]: Start difference. First operand 1562 states and 7001 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:47,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:47,274 INFO L93 Difference]: Finished difference Result 2991 states and 11808 transitions. [2021-03-11 14:40:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:47,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:47,281 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:40:47,281 INFO L226 Difference]: Without dead ends: 2971 [2021-03-11 14:40:47,282 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 414.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-03-11 14:40:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1585. [2021-03-11 14:40:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.460858585858586) internal successors, (7066), 1584 states have internal predecessors, (7066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:47,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7066 transitions. [2021-03-11 14:40:47,329 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7066 transitions. Word has length 28 [2021-03-11 14:40:47,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:47,329 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7066 transitions. [2021-03-11 14:40:47,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:47,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7066 transitions. [2021-03-11 14:40:47,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:47,332 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:47,332 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:47,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2021-03-11 14:40:47,332 INFO L428 AbstractCegarLoop]: === Iteration 586 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:47,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:47,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1815180580, now seen corresponding path program 578 times [2021-03-11 14:40:47,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:47,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016174908] [2021-03-11 14:40:47,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:47,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:47,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:47,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:47,352 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:47,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:47,372 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:47,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:47,397 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:47,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:47,426 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:47,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:47,487 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:47,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:47,567 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:47,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:47,624 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:47,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:47,688 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:47,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:47,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016174908] [2021-03-11 14:40:47,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:47,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:47,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533889621] [2021-03-11 14:40:47,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:47,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:47,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:47,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:47,745 INFO L87 Difference]: Start difference. First operand 1585 states and 7066 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:48,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:48,013 INFO L93 Difference]: Finished difference Result 2989 states and 11796 transitions. [2021-03-11 14:40:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:48,020 INFO L225 Difference]: With dead ends: 2989 [2021-03-11 14:40:48,020 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:40:48,020 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 480.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:48,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:40:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1575. [2021-03-11 14:40:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.474587039390089) internal successors, (7043), 1574 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:48,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7043 transitions. [2021-03-11 14:40:48,067 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7043 transitions. Word has length 28 [2021-03-11 14:40:48,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:48,067 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7043 transitions. [2021-03-11 14:40:48,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7043 transitions. [2021-03-11 14:40:48,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:48,070 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:48,070 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:48,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2021-03-11 14:40:48,070 INFO L428 AbstractCegarLoop]: === Iteration 587 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:48,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:48,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1608333660, now seen corresponding path program 579 times [2021-03-11 14:40:48,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:48,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12336371] [2021-03-11 14:40:48,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:48,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:48,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:48,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:48,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:48,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:48,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:48,104 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:48,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:48,126 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:48,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:48,154 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:48,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:48,210 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:48,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:48,284 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:48,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:48,362 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:48,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:48,428 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:48,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:48,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12336371] [2021-03-11 14:40:48,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:48,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:48,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944058014] [2021-03-11 14:40:48,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:48,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:48,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:48,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:48,487 INFO L87 Difference]: Start difference. First operand 1575 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:48,708 INFO L93 Difference]: Finished difference Result 2982 states and 11781 transitions. [2021-03-11 14:40:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:48,710 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:48,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:48,716 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:40:48,716 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:40:48,716 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 447.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:48,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:40:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1580. [2021-03-11 14:40:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.465484483850538) internal successors, (7051), 1579 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:48,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7051 transitions. [2021-03-11 14:40:48,764 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7051 transitions. Word has length 28 [2021-03-11 14:40:48,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:48,764 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7051 transitions. [2021-03-11 14:40:48,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:48,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7051 transitions. [2021-03-11 14:40:48,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:48,766 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:48,766 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:48,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2021-03-11 14:40:48,767 INFO L428 AbstractCegarLoop]: === Iteration 588 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:48,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:48,767 INFO L82 PathProgramCache]: Analyzing trace with hash 292176356, now seen corresponding path program 580 times [2021-03-11 14:40:48,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:48,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877729480] [2021-03-11 14:40:48,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:48,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:48,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:48,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:48,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:48,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:48,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:48,801 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:48,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:48,822 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:48,851 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:48,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:48,907 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:48,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:48,979 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:48,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:49,059 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:49,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:49,119 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:49,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:49,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877729480] [2021-03-11 14:40:49,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:49,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:49,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049305898] [2021-03-11 14:40:49,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:49,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:49,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:49,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:49,175 INFO L87 Difference]: Start difference. First operand 1580 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:49,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:49,458 INFO L93 Difference]: Finished difference Result 2976 states and 11765 transitions. [2021-03-11 14:40:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:49,466 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:40:49,466 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:40:49,466 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 473.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:49,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:40:49,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1575. [2021-03-11 14:40:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.47141041931385) internal successors, (7038), 1574 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7038 transitions. [2021-03-11 14:40:49,515 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7038 transitions. Word has length 28 [2021-03-11 14:40:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:49,515 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7038 transitions. [2021-03-11 14:40:49,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7038 transitions. [2021-03-11 14:40:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:49,517 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:49,517 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:49,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2021-03-11 14:40:49,518 INFO L428 AbstractCegarLoop]: === Iteration 589 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:49,518 INFO L82 PathProgramCache]: Analyzing trace with hash -330990180, now seen corresponding path program 581 times [2021-03-11 14:40:49,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:49,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031184058] [2021-03-11 14:40:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:49,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:49,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:49,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:49,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:49,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:49,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:49,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:49,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:49,576 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:49,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:49,607 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:49,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:49,667 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:49,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:49,742 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:49,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:49,828 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:49,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:49,891 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:49,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:49,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031184058] [2021-03-11 14:40:49,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:49,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:49,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990851247] [2021-03-11 14:40:49,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:49,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:49,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:49,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:49,947 INFO L87 Difference]: Start difference. First operand 1575 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:50,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:50,176 INFO L93 Difference]: Finished difference Result 2977 states and 11768 transitions. [2021-03-11 14:40:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:50,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:50,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:50,184 INFO L225 Difference]: With dead ends: 2977 [2021-03-11 14:40:50,184 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:40:50,184 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 493.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:50,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:40:50,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1579. [2021-03-11 14:40:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.464512040557668) internal successors, (7045), 1578 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7045 transitions. [2021-03-11 14:40:50,235 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7045 transitions. Word has length 28 [2021-03-11 14:40:50,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:50,235 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7045 transitions. [2021-03-11 14:40:50,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:50,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7045 transitions. [2021-03-11 14:40:50,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:50,237 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:50,237 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:50,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2021-03-11 14:40:50,237 INFO L428 AbstractCegarLoop]: === Iteration 590 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:50,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:50,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1903117314, now seen corresponding path program 582 times [2021-03-11 14:40:50,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:50,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916475080] [2021-03-11 14:40:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:50,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:50,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:50,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:50,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:50,258 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:50,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:50,273 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:50,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:50,296 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:50,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:50,327 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:50,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:50,389 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:40:50,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:40:50,465 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:50,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:50,554 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:50,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:50,617 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:50,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:50,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916475080] [2021-03-11 14:40:50,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:50,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:50,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523331561] [2021-03-11 14:40:50,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:50,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:50,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:50,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:50,681 INFO L87 Difference]: Start difference. First operand 1579 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:50,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:50,981 INFO L93 Difference]: Finished difference Result 2973 states and 11756 transitions. [2021-03-11 14:40:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:50,988 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:40:50,988 INFO L226 Difference]: Without dead ends: 2949 [2021-03-11 14:40:50,988 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 502.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2021-03-11 14:40:51,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1569. [2021-03-11 14:40:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.478954081632653) internal successors, (7023), 1568 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:51,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7023 transitions. [2021-03-11 14:40:51,035 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7023 transitions. Word has length 28 [2021-03-11 14:40:51,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:51,035 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7023 transitions. [2021-03-11 14:40:51,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7023 transitions. [2021-03-11 14:40:51,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:51,038 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:51,038 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:51,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2021-03-11 14:40:51,038 INFO L428 AbstractCegarLoop]: === Iteration 591 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:51,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:51,038 INFO L82 PathProgramCache]: Analyzing trace with hash -2130397626, now seen corresponding path program 583 times [2021-03-11 14:40:51,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:51,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692038372] [2021-03-11 14:40:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:51,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:51,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:51,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:51,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:51,058 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:51,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:51,075 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:51,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:51,098 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:51,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:51,127 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:51,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:51,184 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:51,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:51,228 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:51,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:51,280 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:51,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:51,340 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:51,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:51,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692038372] [2021-03-11 14:40:51,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:51,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:51,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696966201] [2021-03-11 14:40:51,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:51,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:51,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:51,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:51,397 INFO L87 Difference]: Start difference. First operand 1569 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:51,583 INFO L93 Difference]: Finished difference Result 3004 states and 11839 transitions. [2021-03-11 14:40:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:51,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:51,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:51,590 INFO L225 Difference]: With dead ends: 3004 [2021-03-11 14:40:51,590 INFO L226 Difference]: Without dead ends: 2984 [2021-03-11 14:40:51,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 379.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:51,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2021-03-11 14:40:51,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1589. [2021-03-11 14:40:51,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 4.454030226700252) internal successors, (7073), 1588 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:51,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 7073 transitions. [2021-03-11 14:40:51,638 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 7073 transitions. Word has length 28 [2021-03-11 14:40:51,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:51,638 INFO L480 AbstractCegarLoop]: Abstraction has 1589 states and 7073 transitions. [2021-03-11 14:40:51,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 7073 transitions. [2021-03-11 14:40:51,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:51,640 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:51,640 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:51,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2021-03-11 14:40:51,640 INFO L428 AbstractCegarLoop]: === Iteration 592 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:51,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:51,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1385695128, now seen corresponding path program 584 times [2021-03-11 14:40:51,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:51,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673656468] [2021-03-11 14:40:51,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:51,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:51,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:51,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:51,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:51,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:51,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:51,676 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:51,698 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:51,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:51,727 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:51,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:51,786 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:51,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:51,833 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:40:51,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:40:51,888 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:51,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:51,955 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:51,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:52,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:52,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673656468] [2021-03-11 14:40:52,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:52,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:52,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548875803] [2021-03-11 14:40:52,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:52,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:52,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:52,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:52,015 INFO L87 Difference]: Start difference. First operand 1589 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:52,277 INFO L93 Difference]: Finished difference Result 3002 states and 11827 transitions. [2021-03-11 14:40:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:52,278 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:52,284 INFO L225 Difference]: With dead ends: 3002 [2021-03-11 14:40:52,284 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:40:52,284 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 442.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:40:52,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1579. [2021-03-11 14:40:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.465779467680608) internal successors, (7047), 1578 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7047 transitions. [2021-03-11 14:40:52,332 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7047 transitions. Word has length 28 [2021-03-11 14:40:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:52,332 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7047 transitions. [2021-03-11 14:40:52,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7047 transitions. [2021-03-11 14:40:52,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:52,334 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:52,334 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:52,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2021-03-11 14:40:52,334 INFO L428 AbstractCegarLoop]: === Iteration 593 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:52,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:52,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1629339868, now seen corresponding path program 585 times [2021-03-11 14:40:52,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:52,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291914164] [2021-03-11 14:40:52,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:52,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:52,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:52,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:52,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:52,354 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:52,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:52,370 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:52,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:52,393 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:52,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:52,423 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:52,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:52,484 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:52,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:52,531 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:52,586 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:52,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:52,656 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:52,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:52,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291914164] [2021-03-11 14:40:52,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:52,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:52,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514415464] [2021-03-11 14:40:52,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:52,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:52,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:52,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:52,717 INFO L87 Difference]: Start difference. First operand 1579 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:52,911 INFO L93 Difference]: Finished difference Result 3001 states and 11824 transitions. [2021-03-11 14:40:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:52,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:52,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:52,918 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:40:52,918 INFO L226 Difference]: Without dead ends: 2981 [2021-03-11 14:40:52,918 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 404.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:52,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-03-11 14:40:52,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1587. [2021-03-11 14:40:52,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.452080706179067) internal successors, (7061), 1586 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7061 transitions. [2021-03-11 14:40:52,965 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7061 transitions. Word has length 28 [2021-03-11 14:40:52,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:52,965 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7061 transitions. [2021-03-11 14:40:52,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7061 transitions. [2021-03-11 14:40:52,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:52,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:52,967 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:52,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2021-03-11 14:40:52,967 INFO L428 AbstractCegarLoop]: === Iteration 594 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:52,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:52,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1802587560, now seen corresponding path program 586 times [2021-03-11 14:40:52,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:52,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076375789] [2021-03-11 14:40:52,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:52,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:52,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:52,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:52,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:52,986 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:52,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:53,002 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:53,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:53,024 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:53,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:53,053 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:53,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:53,112 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:53,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:53,158 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:53,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:53,217 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:53,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:53,280 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:53,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:53,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076375789] [2021-03-11 14:40:53,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:53,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:53,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831886836] [2021-03-11 14:40:53,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:53,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:53,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:53,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:53,338 INFO L87 Difference]: Start difference. First operand 1587 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:53,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:53,582 INFO L93 Difference]: Finished difference Result 2998 states and 11811 transitions. [2021-03-11 14:40:53,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:53,583 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:53,590 INFO L225 Difference]: With dead ends: 2998 [2021-03-11 14:40:53,590 INFO L226 Difference]: Without dead ends: 2973 [2021-03-11 14:40:53,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 439.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:53,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2021-03-11 14:40:53,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 1579. [2021-03-11 14:40:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.4607097591888465) internal successors, (7039), 1578 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:53,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7039 transitions. [2021-03-11 14:40:53,637 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7039 transitions. Word has length 28 [2021-03-11 14:40:53,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:53,637 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7039 transitions. [2021-03-11 14:40:53,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7039 transitions. [2021-03-11 14:40:53,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:53,639 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:53,639 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:53,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2021-03-11 14:40:53,639 INFO L428 AbstractCegarLoop]: === Iteration 595 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:53,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:53,640 INFO L82 PathProgramCache]: Analyzing trace with hash -309983972, now seen corresponding path program 587 times [2021-03-11 14:40:53,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:53,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010195461] [2021-03-11 14:40:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:53,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:53,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:53,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:53,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:53,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:53,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:53,677 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:53,702 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:53,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:53,732 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:53,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:53,791 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:53,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:53,839 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:53,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:53,893 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:53,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:53,957 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:53,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:54,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010195461] [2021-03-11 14:40:54,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:54,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:54,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206791646] [2021-03-11 14:40:54,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:54,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:54,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:54,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:54,015 INFO L87 Difference]: Start difference. First operand 1579 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:54,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:54,292 INFO L93 Difference]: Finished difference Result 2996 states and 11808 transitions. [2021-03-11 14:40:54,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:54,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:54,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:54,300 INFO L225 Difference]: With dead ends: 2996 [2021-03-11 14:40:54,300 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:40:54,300 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 448.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:54,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:40:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1586. [2021-03-11 14:40:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.449211356466877) internal successors, (7052), 1585 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7052 transitions. [2021-03-11 14:40:54,348 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7052 transitions. Word has length 28 [2021-03-11 14:40:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:54,348 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7052 transitions. [2021-03-11 14:40:54,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7052 transitions. [2021-03-11 14:40:54,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:54,350 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:54,350 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:54,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2021-03-11 14:40:54,350 INFO L428 AbstractCegarLoop]: === Iteration 596 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:54,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:54,351 INFO L82 PathProgramCache]: Analyzing trace with hash -881438778, now seen corresponding path program 588 times [2021-03-11 14:40:54,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:54,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111850629] [2021-03-11 14:40:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:54,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:54,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:54,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:54,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:54,371 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:54,387 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:54,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:54,411 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:54,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:54,439 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:54,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:54,500 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:40:54,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:40:54,547 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:54,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:54,602 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:54,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:54,668 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:54,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:54,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:54,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111850629] [2021-03-11 14:40:54,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:54,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:54,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444780772] [2021-03-11 14:40:54,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:54,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:54,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:54,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:54,726 INFO L87 Difference]: Start difference. First operand 1586 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:54,949 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:40:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:54,978 INFO L93 Difference]: Finished difference Result 2995 states and 11799 transitions. [2021-03-11 14:40:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:54,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:54,985 INFO L225 Difference]: With dead ends: 2995 [2021-03-11 14:40:54,985 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:40:54,986 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 455.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:55,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:40:55,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1569. [2021-03-11 14:40:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.474489795918367) internal successors, (7016), 1568 states have internal predecessors, (7016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7016 transitions. [2021-03-11 14:40:55,033 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7016 transitions. Word has length 28 [2021-03-11 14:40:55,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:55,034 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7016 transitions. [2021-03-11 14:40:55,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7016 transitions. [2021-03-11 14:40:55,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:55,036 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:55,036 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:55,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2021-03-11 14:40:55,036 INFO L428 AbstractCegarLoop]: === Iteration 597 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:55,036 INFO L82 PathProgramCache]: Analyzing trace with hash -2098888314, now seen corresponding path program 589 times [2021-03-11 14:40:55,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:55,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570907228] [2021-03-11 14:40:55,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:55,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:55,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:55,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:55,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:55,059 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:55,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:55,076 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:55,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:55,102 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:55,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:55,130 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:55,191 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:55,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:55,268 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:55,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:55,353 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:55,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:55,418 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:55,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:55,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570907228] [2021-03-11 14:40:55,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:55,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:55,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551829673] [2021-03-11 14:40:55,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:55,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:55,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:55,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:55,475 INFO L87 Difference]: Start difference. First operand 1569 states and 7016 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:55,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:55,667 INFO L93 Difference]: Finished difference Result 2978 states and 11766 transitions. [2021-03-11 14:40:55,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:55,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:55,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:55,675 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:40:55,675 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:40:55,675 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 460.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:55,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:40:55,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1579. [2021-03-11 14:40:55,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.462610899873257) internal successors, (7042), 1578 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7042 transitions. [2021-03-11 14:40:55,721 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7042 transitions. Word has length 28 [2021-03-11 14:40:55,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:55,722 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7042 transitions. [2021-03-11 14:40:55,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7042 transitions. [2021-03-11 14:40:55,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:55,724 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:55,724 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:55,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2021-03-11 14:40:55,724 INFO L428 AbstractCegarLoop]: === Iteration 598 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:55,724 INFO L82 PathProgramCache]: Analyzing trace with hash 879921678, now seen corresponding path program 590 times [2021-03-11 14:40:55,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:55,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927169501] [2021-03-11 14:40:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:55,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:55,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:55,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:55,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:55,743 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:55,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:55,758 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:55,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:55,781 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:55,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:55,809 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:55,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:55,867 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:55,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:55,938 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:40:55,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:40:56,022 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:56,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:56,084 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:56,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:56,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927169501] [2021-03-11 14:40:56,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:56,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:56,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444981273] [2021-03-11 14:40:56,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:56,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:56,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:56,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:56,140 INFO L87 Difference]: Start difference. First operand 1579 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:56,366 INFO L93 Difference]: Finished difference Result 2972 states and 11750 transitions. [2021-03-11 14:40:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:56,367 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:56,373 INFO L225 Difference]: With dead ends: 2972 [2021-03-11 14:40:56,373 INFO L226 Difference]: Without dead ends: 2953 [2021-03-11 14:40:56,373 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 477.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:56,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-03-11 14:40:56,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1574. [2021-03-11 14:40:56,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.468531468531468) internal successors, (7029), 1573 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:56,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7029 transitions. [2021-03-11 14:40:56,436 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7029 transitions. Word has length 28 [2021-03-11 14:40:56,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:56,436 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7029 transitions. [2021-03-11 14:40:56,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7029 transitions. [2021-03-11 14:40:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:56,438 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:56,438 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:56,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2021-03-11 14:40:56,438 INFO L428 AbstractCegarLoop]: === Iteration 599 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:56,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:56,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1122993602, now seen corresponding path program 591 times [2021-03-11 14:40:56,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:56,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884368085] [2021-03-11 14:40:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:56,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:56,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:56,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:56,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:56,458 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:56,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:56,474 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:56,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:56,497 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:56,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:56,526 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:56,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:56,584 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:56,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:56,654 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:56,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:56,708 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:40:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:40:56,772 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:56,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:56,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884368085] [2021-03-11 14:40:56,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:56,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:56,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908903756] [2021-03-11 14:40:56,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:56,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:56,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:56,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:56,830 INFO L87 Difference]: Start difference. First operand 1574 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:57,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:57,043 INFO L93 Difference]: Finished difference Result 2984 states and 11776 transitions. [2021-03-11 14:40:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:57,044 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:57,050 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:40:57,050 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:40:57,051 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 415.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:57,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:40:57,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1582. [2021-03-11 14:40:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.454775458570525) internal successors, (7043), 1581 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7043 transitions. [2021-03-11 14:40:57,101 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7043 transitions. Word has length 28 [2021-03-11 14:40:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:57,102 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7043 transitions. [2021-03-11 14:40:57,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7043 transitions. [2021-03-11 14:40:57,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:57,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:57,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:57,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2021-03-11 14:40:57,104 INFO L428 AbstractCegarLoop]: === Iteration 600 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:57,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:57,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1296241294, now seen corresponding path program 592 times [2021-03-11 14:40:57,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:57,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710279726] [2021-03-11 14:40:57,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:57,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:57,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:57,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:57,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:57,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:57,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:57,141 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:57,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:57,165 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:57,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:57,195 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:57,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:57,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:57,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:57,323 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:40:57,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:40:57,377 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:57,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:57,442 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:57,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:57,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:57,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710279726] [2021-03-11 14:40:57,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:57,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:57,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979457588] [2021-03-11 14:40:57,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:57,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:57,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:57,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:57,502 INFO L87 Difference]: Start difference. First operand 1582 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:57,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:57,765 INFO L93 Difference]: Finished difference Result 2981 states and 11763 transitions. [2021-03-11 14:40:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:57,773 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:40:57,773 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:40:57,773 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 471.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:57,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:40:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1574. [2021-03-11 14:40:57,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.465352828989193) internal successors, (7024), 1573 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7024 transitions. [2021-03-11 14:40:57,821 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7024 transitions. Word has length 28 [2021-03-11 14:40:57,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:57,821 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7024 transitions. [2021-03-11 14:40:57,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7024 transitions. [2021-03-11 14:40:57,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:57,823 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:57,823 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:57,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2021-03-11 14:40:57,824 INFO L428 AbstractCegarLoop]: === Iteration 601 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:57,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:57,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1955632834, now seen corresponding path program 593 times [2021-03-11 14:40:57,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:57,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674884780] [2021-03-11 14:40:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:57,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:57,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:57,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:57,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:57,847 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:57,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:57,866 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:57,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:57,889 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:57,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:57,919 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:57,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:57,978 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:57,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:58,049 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:58,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:58,132 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:58,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:58,196 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:58,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:58,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674884780] [2021-03-11 14:40:58,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:58,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:58,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963426479] [2021-03-11 14:40:58,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:58,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:58,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:58,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:58,255 INFO L87 Difference]: Start difference. First operand 1574 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:58,600 INFO L93 Difference]: Finished difference Result 2968 states and 11738 transitions. [2021-03-11 14:40:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:58,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:58,608 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:40:58,608 INFO L226 Difference]: Without dead ends: 2954 [2021-03-11 14:40:58,608 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 496.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:58,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-03-11 14:40:58,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1578. [2021-03-11 14:40:58,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.458465440710209) internal successors, (7031), 1577 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7031 transitions. [2021-03-11 14:40:58,654 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7031 transitions. Word has length 28 [2021-03-11 14:40:58,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:58,654 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7031 transitions. [2021-03-11 14:40:58,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:58,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7031 transitions. [2021-03-11 14:40:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:58,657 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:58,657 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:58,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2021-03-11 14:40:58,657 INFO L428 AbstractCegarLoop]: === Iteration 602 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:58,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:58,657 INFO L82 PathProgramCache]: Analyzing trace with hash -849929466, now seen corresponding path program 594 times [2021-03-11 14:40:58,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:58,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494778273] [2021-03-11 14:40:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:58,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:58,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:58,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:58,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:58,677 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:58,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:58,692 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:58,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:58,714 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:58,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:58,742 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:58,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:58,798 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:58,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:58,865 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:58,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:58,948 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:58,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:59,012 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:59,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:59,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494778273] [2021-03-11 14:40:59,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:59,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:59,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492164353] [2021-03-11 14:40:59,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:59,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:59,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:59,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:59,070 INFO L87 Difference]: Start difference. First operand 1578 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:59,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:40:59,323 INFO L93 Difference]: Finished difference Result 2971 states and 11740 transitions. [2021-03-11 14:40:59,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:40:59,324 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:40:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:40:59,330 INFO L225 Difference]: With dead ends: 2971 [2021-03-11 14:40:59,330 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:40:59,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 478.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:40:59,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:40:59,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1569. [2021-03-11 14:40:59,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.471301020408164) internal successors, (7011), 1568 states have internal predecessors, (7011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7011 transitions. [2021-03-11 14:40:59,377 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7011 transitions. Word has length 28 [2021-03-11 14:40:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:40:59,377 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7011 transitions. [2021-03-11 14:40:59,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:40:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7011 transitions. [2021-03-11 14:40:59,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:40:59,379 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:40:59,379 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:40:59,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2021-03-11 14:40:59,380 INFO L428 AbstractCegarLoop]: === Iteration 603 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:40:59,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:40:59,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1343682712, now seen corresponding path program 595 times [2021-03-11 14:40:59,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:40:59,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374225584] [2021-03-11 14:40:59,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:40:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:40:59,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:59,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:40:59,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:40:59,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:40:59,400 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:40:59,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:40:59,416 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:40:59,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:40:59,439 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:40:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:40:59,468 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:40:59,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:40:59,527 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:40:59,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:40:59,600 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:40:59,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:40:59,689 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:40:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:40:59,756 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:40:59,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:40:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:40:59,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374225584] [2021-03-11 14:40:59,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:40:59,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:40:59,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119095141] [2021-03-11 14:40:59,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:40:59,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:40:59,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:40:59,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:40:59,816 INFO L87 Difference]: Start difference. First operand 1569 states and 7011 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:00,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:00,099 INFO L93 Difference]: Finished difference Result 2968 states and 11743 transitions. [2021-03-11 14:41:00,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:00,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:00,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:00,107 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:41:00,107 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:41:00,107 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 512.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:00,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:41:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1577. [2021-03-11 14:41:00,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.46256345177665) internal successors, (7033), 1576 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:00,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7033 transitions. [2021-03-11 14:41:00,156 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7033 transitions. Word has length 28 [2021-03-11 14:41:00,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:00,156 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7033 transitions. [2021-03-11 14:41:00,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:00,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7033 transitions. [2021-03-11 14:41:00,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:00,158 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:00,159 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:00,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2021-03-11 14:41:00,159 INFO L428 AbstractCegarLoop]: === Iteration 604 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:00,159 INFO L82 PathProgramCache]: Analyzing trace with hash 890424782, now seen corresponding path program 596 times [2021-03-11 14:41:00,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:00,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086541655] [2021-03-11 14:41:00,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:00,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:00,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:00,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:00,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:00,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:00,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:00,197 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:00,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:00,222 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:00,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:00,253 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:00,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:00,312 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:00,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:00,391 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:00,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:00,493 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:00,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:00,568 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:00,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:00,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:00,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086541655] [2021-03-11 14:41:00,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:00,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:00,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933983607] [2021-03-11 14:41:00,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:00,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:00,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:00,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:00,639 INFO L87 Difference]: Start difference. First operand 1577 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:00,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:00,918 INFO L93 Difference]: Finished difference Result 2964 states and 11731 transitions. [2021-03-11 14:41:00,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:00,921 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:00,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:00,927 INFO L225 Difference]: With dead ends: 2964 [2021-03-11 14:41:00,927 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:41:00,927 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 549.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:00,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:41:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1573. [2021-03-11 14:41:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.466921119592875) internal successors, (7022), 1572 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:00,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7022 transitions. [2021-03-11 14:41:00,977 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7022 transitions. Word has length 28 [2021-03-11 14:41:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:00,977 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7022 transitions. [2021-03-11 14:41:00,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7022 transitions. [2021-03-11 14:41:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:00,979 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:00,979 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:00,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2021-03-11 14:41:00,979 INFO L428 AbstractCegarLoop]: === Iteration 605 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:00,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:00,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1878199204, now seen corresponding path program 597 times [2021-03-11 14:41:00,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:00,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804262594] [2021-03-11 14:41:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:00,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:00,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:00,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:00,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:01,001 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:01,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:01,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:01,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:01,043 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:01,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:01,078 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:01,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:01,145 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:01,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:01,221 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:01,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:01,280 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:01,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:01,393 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:01,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:01,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804262594] [2021-03-11 14:41:01,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:01,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:01,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116281560] [2021-03-11 14:41:01,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:01,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:01,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:01,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:01,455 INFO L87 Difference]: Start difference. First operand 1573 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:01,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:01,715 INFO L93 Difference]: Finished difference Result 2974 states and 11754 transitions. [2021-03-11 14:41:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:01,718 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:01,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:01,724 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:41:01,724 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:41:01,724 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 543.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:41:01,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1580. [2021-03-11 14:41:01,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.455351488283724) internal successors, (7035), 1579 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:01,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7035 transitions. [2021-03-11 14:41:01,772 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7035 transitions. Word has length 28 [2021-03-11 14:41:01,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:01,772 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7035 transitions. [2021-03-11 14:41:01,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:01,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7035 transitions. [2021-03-11 14:41:01,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:01,774 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:01,774 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:01,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2021-03-11 14:41:01,774 INFO L428 AbstractCegarLoop]: === Iteration 606 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:01,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:01,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1306744398, now seen corresponding path program 598 times [2021-03-11 14:41:01,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:01,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140745718] [2021-03-11 14:41:01,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:01,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:01,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:01,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:01,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:01,794 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:01,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:01,809 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:01,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:01,830 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:01,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:01,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:01,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:01,912 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:01,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:01,980 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:01,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:02,037 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:02,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:02,101 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:02,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:02,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140745718] [2021-03-11 14:41:02,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:02,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:02,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847117814] [2021-03-11 14:41:02,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:02,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:02,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:02,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:02,164 INFO L87 Difference]: Start difference. First operand 1580 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:02,441 INFO L93 Difference]: Finished difference Result 2973 states and 11745 transitions. [2021-03-11 14:41:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:02,443 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:02,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:02,449 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:41:02,449 INFO L226 Difference]: Without dead ends: 2949 [2021-03-11 14:41:02,449 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 454.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:02,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2021-03-11 14:41:02,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1573. [2021-03-11 14:41:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.464376590330788) internal successors, (7018), 1572 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7018 transitions. [2021-03-11 14:41:02,496 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7018 transitions. Word has length 28 [2021-03-11 14:41:02,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:02,496 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7018 transitions. [2021-03-11 14:41:02,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7018 transitions. [2021-03-11 14:41:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:02,499 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:02,499 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:02,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2021-03-11 14:41:02,499 INFO L428 AbstractCegarLoop]: === Iteration 607 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:02,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:02,499 INFO L82 PathProgramCache]: Analyzing trace with hash 355194980, now seen corresponding path program 599 times [2021-03-11 14:41:02,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:02,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973344565] [2021-03-11 14:41:02,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:02,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:02,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:02,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:02,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:02,519 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:02,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:02,535 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:02,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:02,559 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:02,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:02,588 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:02,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:02,648 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:02,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:02,725 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:02,812 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:02,877 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:02,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:02,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973344565] [2021-03-11 14:41:02,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:02,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:02,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20875386] [2021-03-11 14:41:02,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:02,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:02,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:02,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:02,938 INFO L87 Difference]: Start difference. First operand 1573 states and 7018 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:03,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:03,203 INFO L93 Difference]: Finished difference Result 2963 states and 11725 transitions. [2021-03-11 14:41:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:03,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:03,210 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:41:03,211 INFO L226 Difference]: Without dead ends: 2949 [2021-03-11 14:41:03,211 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 501.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:03,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2021-03-11 14:41:03,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1577. [2021-03-11 14:41:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.45748730964467) internal successors, (7025), 1576 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7025 transitions. [2021-03-11 14:41:03,257 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7025 transitions. Word has length 28 [2021-03-11 14:41:03,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:03,257 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7025 transitions. [2021-03-11 14:41:03,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:03,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7025 transitions. [2021-03-11 14:41:03,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:03,259 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:03,259 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:03,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2021-03-11 14:41:03,260 INFO L428 AbstractCegarLoop]: === Iteration 608 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:03,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:03,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1844599976, now seen corresponding path program 600 times [2021-03-11 14:41:03,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:03,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764636532] [2021-03-11 14:41:03,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:03,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:03,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:03,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:03,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:03,287 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:03,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:03,309 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:03,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:03,339 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:03,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:03,378 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:03,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:03,456 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:03,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:03,550 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:03,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:03,657 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:03,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:03,738 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:03,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:03,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764636532] [2021-03-11 14:41:03,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:03,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:03,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415194244] [2021-03-11 14:41:03,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:03,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:03,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:03,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:03,816 INFO L87 Difference]: Start difference. First operand 1577 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:04,167 INFO L93 Difference]: Finished difference Result 2966 states and 11727 transitions. [2021-03-11 14:41:04,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:04,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:04,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:04,174 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:41:04,175 INFO L226 Difference]: Without dead ends: 2927 [2021-03-11 14:41:04,175 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 608.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:04,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2021-03-11 14:41:04,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 1555. [2021-03-11 14:41:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 4.492277992277992) internal successors, (6981), 1554 states have internal predecessors, (6981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:04,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 6981 transitions. [2021-03-11 14:41:04,221 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 6981 transitions. Word has length 28 [2021-03-11 14:41:04,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:04,221 INFO L480 AbstractCegarLoop]: Abstraction has 1555 states and 6981 transitions. [2021-03-11 14:41:04,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:04,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 6981 transitions. [2021-03-11 14:41:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:04,224 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:04,224 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:04,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2021-03-11 14:41:04,224 INFO L428 AbstractCegarLoop]: === Iteration 609 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:04,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:04,224 INFO L82 PathProgramCache]: Analyzing trace with hash -208706742, now seen corresponding path program 601 times [2021-03-11 14:41:04,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:04,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724289387] [2021-03-11 14:41:04,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:04,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:04,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:04,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:04,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:04,247 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:04,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:04,263 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:04,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:04,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:04,314 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:04,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:04,350 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:04,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:04,398 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:04,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:04,489 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:04,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:04,554 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:04,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:04,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:04,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724289387] [2021-03-11 14:41:04,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:04,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:04,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818265828] [2021-03-11 14:41:04,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:04,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:04,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:04,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:04,616 INFO L87 Difference]: Start difference. First operand 1555 states and 6981 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:04,875 INFO L93 Difference]: Finished difference Result 2994 states and 11845 transitions. [2021-03-11 14:41:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:04,876 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:04,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:04,882 INFO L225 Difference]: With dead ends: 2994 [2021-03-11 14:41:04,882 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:41:04,883 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 453.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:41:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1584. [2021-03-11 14:41:04,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.475679090334808) internal successors, (7085), 1583 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:04,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7085 transitions. [2021-03-11 14:41:04,930 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7085 transitions. Word has length 28 [2021-03-11 14:41:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:04,930 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7085 transitions. [2021-03-11 14:41:04,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:04,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7085 transitions. [2021-03-11 14:41:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:04,932 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:04,932 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:04,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2021-03-11 14:41:04,932 INFO L428 AbstractCegarLoop]: === Iteration 610 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:04,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:04,933 INFO L82 PathProgramCache]: Analyzing trace with hash 535995756, now seen corresponding path program 602 times [2021-03-11 14:41:04,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:04,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106103171] [2021-03-11 14:41:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:04,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:04,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:04,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:04,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:04,952 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:04,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:04,968 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:04,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:04,990 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:04,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:05,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:05,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:05,053 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:05,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:05,097 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:05,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:05,187 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:05,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:05,252 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:05,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:05,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106103171] [2021-03-11 14:41:05,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:05,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:05,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399985214] [2021-03-11 14:41:05,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:05,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:05,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:05,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:05,310 INFO L87 Difference]: Start difference. First operand 1584 states and 7085 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:05,499 INFO L93 Difference]: Finished difference Result 2998 states and 11846 transitions. [2021-03-11 14:41:05,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:05,501 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:05,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:05,507 INFO L225 Difference]: With dead ends: 2998 [2021-03-11 14:41:05,507 INFO L226 Difference]: Without dead ends: 2971 [2021-03-11 14:41:05,507 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 396.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-03-11 14:41:05,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1577. [2021-03-11 14:41:05,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.4828680203045685) internal successors, (7065), 1576 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7065 transitions. [2021-03-11 14:41:05,556 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7065 transitions. Word has length 28 [2021-03-11 14:41:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:05,556 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7065 transitions. [2021-03-11 14:41:05,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7065 transitions. [2021-03-11 14:41:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:05,559 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:05,559 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:05,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2021-03-11 14:41:05,559 INFO L428 AbstractCegarLoop]: === Iteration 611 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:05,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1402234216, now seen corresponding path program 603 times [2021-03-11 14:41:05,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:05,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128675813] [2021-03-11 14:41:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:05,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:05,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:05,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:05,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:05,579 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:05,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:05,594 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:05,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:05,616 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:05,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:05,646 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:05,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:05,682 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:05,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:05,728 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:05,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:05,782 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:05,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:05,844 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:05,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:05,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128675813] [2021-03-11 14:41:05,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:05,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:05,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543189897] [2021-03-11 14:41:05,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:05,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:05,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:05,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:05,904 INFO L87 Difference]: Start difference. First operand 1577 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:06,156 INFO L93 Difference]: Finished difference Result 2991 states and 11833 transitions. [2021-03-11 14:41:06,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:06,158 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:06,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:06,163 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:41:06,163 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:41:06,164 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 411.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:06,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:41:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1583. [2021-03-11 14:41:06,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.472819216182048) internal successors, (7076), 1582 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7076 transitions. [2021-03-11 14:41:06,211 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7076 transitions. Word has length 28 [2021-03-11 14:41:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:06,211 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7076 transitions. [2021-03-11 14:41:06,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7076 transitions. [2021-03-11 14:41:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:06,213 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:06,214 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:06,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2021-03-11 14:41:06,214 INFO L428 AbstractCegarLoop]: === Iteration 612 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:06,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:06,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1403328084, now seen corresponding path program 604 times [2021-03-11 14:41:06,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:06,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741984158] [2021-03-11 14:41:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:06,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:06,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:06,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:06,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:06,235 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:06,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:06,251 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:06,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:06,274 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:06,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:06,303 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:06,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:06,340 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:06,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:06,388 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:06,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:06,442 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:06,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:06,509 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:06,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:06,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741984158] [2021-03-11 14:41:06,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:06,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:06,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229154610] [2021-03-11 14:41:06,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:06,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:06,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:06,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:06,569 INFO L87 Difference]: Start difference. First operand 1583 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:06,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:06,816 INFO L93 Difference]: Finished difference Result 2993 states and 11831 transitions. [2021-03-11 14:41:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:06,818 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:06,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:06,824 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:41:06,824 INFO L226 Difference]: Without dead ends: 2969 [2021-03-11 14:41:06,824 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 428.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-03-11 14:41:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1577. [2021-03-11 14:41:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.479060913705584) internal successors, (7059), 1576 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7059 transitions. [2021-03-11 14:41:06,870 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7059 transitions. Word has length 28 [2021-03-11 14:41:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:06,870 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7059 transitions. [2021-03-11 14:41:06,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:06,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7059 transitions. [2021-03-11 14:41:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:06,873 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:06,873 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:06,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611 [2021-03-11 14:41:06,873 INFO L428 AbstractCegarLoop]: === Iteration 613 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:06,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:06,873 INFO L82 PathProgramCache]: Analyzing trace with hash -537089624, now seen corresponding path program 605 times [2021-03-11 14:41:06,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:06,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304792657] [2021-03-11 14:41:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:06,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:06,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:06,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:06,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:06,893 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:06,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:06,909 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:06,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:06,931 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:06,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:06,958 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:06,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:06,993 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:06,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:07,037 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:07,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:07,092 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:07,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:07,159 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:07,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:07,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304792657] [2021-03-11 14:41:07,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:07,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:07,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172550819] [2021-03-11 14:41:07,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:07,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:07,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:07,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:07,219 INFO L87 Difference]: Start difference. First operand 1577 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:07,414 INFO L93 Difference]: Finished difference Result 3003 states and 11850 transitions. [2021-03-11 14:41:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:07,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:07,422 INFO L225 Difference]: With dead ends: 3003 [2021-03-11 14:41:07,422 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:41:07,422 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 373.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:41:07,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1587. [2021-03-11 14:41:07,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.461538461538462) internal successors, (7076), 1586 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7076 transitions. [2021-03-11 14:41:07,470 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7076 transitions. Word has length 28 [2021-03-11 14:41:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:07,470 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7076 transitions. [2021-03-11 14:41:07,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:07,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7076 transitions. [2021-03-11 14:41:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:07,472 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:07,472 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:07,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612 [2021-03-11 14:41:07,472 INFO L428 AbstractCegarLoop]: === Iteration 614 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:07,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:07,472 INFO L82 PathProgramCache]: Analyzing trace with hash 207612874, now seen corresponding path program 606 times [2021-03-11 14:41:07,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:07,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365893849] [2021-03-11 14:41:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:07,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:07,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:07,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:07,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:07,493 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:07,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:07,509 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:07,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:07,532 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:07,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:07,562 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:07,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:07,600 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:07,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:07,651 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:07,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:07,710 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:07,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:07,775 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:07,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:07,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365893849] [2021-03-11 14:41:07,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:07,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:07,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476060294] [2021-03-11 14:41:07,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:07,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:07,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:07,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:07,836 INFO L87 Difference]: Start difference. First operand 1587 states and 7076 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:08,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:08,097 INFO L93 Difference]: Finished difference Result 3001 states and 11838 transitions. [2021-03-11 14:41:08,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:08,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:08,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:08,105 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:41:08,105 INFO L226 Difference]: Without dead ends: 2965 [2021-03-11 14:41:08,105 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 437.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2021-03-11 14:41:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1569. [2021-03-11 14:41:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.488520408163265) internal successors, (7038), 1568 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7038 transitions. [2021-03-11 14:41:08,151 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7038 transitions. Word has length 28 [2021-03-11 14:41:08,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:08,151 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7038 transitions. [2021-03-11 14:41:08,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:08,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7038 transitions. [2021-03-11 14:41:08,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:08,154 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:08,154 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:08,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable613 [2021-03-11 14:41:08,154 INFO L428 AbstractCegarLoop]: === Iteration 615 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:08,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:08,154 INFO L82 PathProgramCache]: Analyzing trace with hash -715053008, now seen corresponding path program 607 times [2021-03-11 14:41:08,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:08,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221233060] [2021-03-11 14:41:08,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:08,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:08,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:08,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:08,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:08,192 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:08,217 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:08,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:08,255 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:08,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:08,303 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:08,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:08,378 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:08,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:08,467 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:08,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:08,532 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:08,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:08,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221233060] [2021-03-11 14:41:08,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:08,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:08,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208052972] [2021-03-11 14:41:08,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:08,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:08,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:08,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:08,588 INFO L87 Difference]: Start difference. First operand 1569 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:08,820 INFO L93 Difference]: Finished difference Result 2980 states and 11802 transitions. [2021-03-11 14:41:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:08,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:08,827 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:41:08,827 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:41:08,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 496.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:08,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:41:08,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1581. [2021-03-11 14:41:08,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.474050632911393) internal successors, (7069), 1580 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7069 transitions. [2021-03-11 14:41:08,875 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7069 transitions. Word has length 28 [2021-03-11 14:41:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:08,875 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7069 transitions. [2021-03-11 14:41:08,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7069 transitions. [2021-03-11 14:41:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:08,877 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:08,877 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:08,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614 [2021-03-11 14:41:08,877 INFO L428 AbstractCegarLoop]: === Iteration 616 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:08,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:08,877 INFO L82 PathProgramCache]: Analyzing trace with hash 29649490, now seen corresponding path program 608 times [2021-03-11 14:41:08,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:08,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661608754] [2021-03-11 14:41:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:08,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:08,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:08,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:08,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:08,906 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:08,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:08,926 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:08,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:08,953 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:08,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:08,986 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:08,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:09,023 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:09,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:09,099 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:09,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:09,191 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:09,261 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:09,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:09,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661608754] [2021-03-11 14:41:09,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:09,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:09,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587605433] [2021-03-11 14:41:09,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:09,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:09,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:09,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:09,322 INFO L87 Difference]: Start difference. First operand 1581 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:09,516 INFO L93 Difference]: Finished difference Result 2984 states and 11803 transitions. [2021-03-11 14:41:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:09,518 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:09,524 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:41:09,524 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:41:09,524 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 462.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:41:09,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1574. [2021-03-11 14:41:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4825174825174825) internal successors, (7051), 1573 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7051 transitions. [2021-03-11 14:41:09,571 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7051 transitions. Word has length 28 [2021-03-11 14:41:09,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:09,571 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7051 transitions. [2021-03-11 14:41:09,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7051 transitions. [2021-03-11 14:41:09,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:09,574 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:09,574 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:09,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615 [2021-03-11 14:41:09,574 INFO L428 AbstractCegarLoop]: === Iteration 617 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:09,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:09,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1433743528, now seen corresponding path program 609 times [2021-03-11 14:41:09,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:09,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700962715] [2021-03-11 14:41:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:09,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:09,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:09,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:09,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:09,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:09,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:09,611 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:09,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:09,633 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:09,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:09,663 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:09,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:09,700 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:09,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:09,775 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:09,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:09,830 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:09,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:09,895 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:09,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:09,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700962715] [2021-03-11 14:41:09,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:09,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:09,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955132164] [2021-03-11 14:41:09,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:09,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:09,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:09,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:09,956 INFO L87 Difference]: Start difference. First operand 1574 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:10,191 INFO L93 Difference]: Finished difference Result 2971 states and 11778 transitions. [2021-03-11 14:41:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:10,199 INFO L225 Difference]: With dead ends: 2971 [2021-03-11 14:41:10,199 INFO L226 Difference]: Without dead ends: 2955 [2021-03-11 14:41:10,200 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 450.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:10,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2021-03-11 14:41:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1578. [2021-03-11 14:41:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.4755865567533295) internal successors, (7058), 1577 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7058 transitions. [2021-03-11 14:41:10,246 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7058 transitions. Word has length 28 [2021-03-11 14:41:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:10,246 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7058 transitions. [2021-03-11 14:41:10,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:10,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7058 transitions. [2021-03-11 14:41:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:10,249 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:10,249 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:10,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616 [2021-03-11 14:41:10,249 INFO L428 AbstractCegarLoop]: === Iteration 618 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:10,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:10,249 INFO L82 PathProgramCache]: Analyzing trace with hash 862288722, now seen corresponding path program 610 times [2021-03-11 14:41:10,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:10,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297281529] [2021-03-11 14:41:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:10,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:10,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:10,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:10,270 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:10,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:10,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:10,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:10,309 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:10,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:10,340 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:10,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:10,377 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:10,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:10,457 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:10,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:10,512 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:10,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:10,577 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:10,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:10,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297281529] [2021-03-11 14:41:10,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:10,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:10,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534316240] [2021-03-11 14:41:10,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:10,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:10,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:10,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:10,639 INFO L87 Difference]: Start difference. First operand 1578 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:10,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:10,915 INFO L93 Difference]: Finished difference Result 2969 states and 11770 transitions. [2021-03-11 14:41:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:10,917 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:10,924 INFO L225 Difference]: With dead ends: 2969 [2021-03-11 14:41:10,924 INFO L226 Difference]: Without dead ends: 2951 [2021-03-11 14:41:10,924 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 464.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-03-11 14:41:10,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1574. [2021-03-11 14:41:10,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.479974570883662) internal successors, (7047), 1573 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:10,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7047 transitions. [2021-03-11 14:41:10,975 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7047 transitions. Word has length 28 [2021-03-11 14:41:10,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:10,979 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7047 transitions. [2021-03-11 14:41:10,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7047 transitions. [2021-03-11 14:41:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:10,982 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:10,982 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:10,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617 [2021-03-11 14:41:10,983 INFO L428 AbstractCegarLoop]: === Iteration 619 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:10,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:10,983 INFO L82 PathProgramCache]: Analyzing trace with hash -505580312, now seen corresponding path program 611 times [2021-03-11 14:41:10,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:10,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001789117] [2021-03-11 14:41:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:10,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:10,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:10,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:10,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:11,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:11,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:11,026 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:11,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:11,053 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:11,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:11,086 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:11,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:11,126 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:11,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:11,209 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:11,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:11,296 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:11,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:11,363 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:11,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:11,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:11,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001789117] [2021-03-11 14:41:11,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:11,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:11,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124527740] [2021-03-11 14:41:11,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:11,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:11,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:11,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:11,421 INFO L87 Difference]: Start difference. First operand 1574 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:11,611 INFO L93 Difference]: Finished difference Result 2980 states and 11790 transitions. [2021-03-11 14:41:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:11,613 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:11,619 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:41:11,620 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:41:11,620 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 459.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:11,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:41:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1579. [2021-03-11 14:41:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.47084917617237) internal successors, (7055), 1578 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7055 transitions. [2021-03-11 14:41:11,669 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7055 transitions. Word has length 28 [2021-03-11 14:41:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:11,669 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7055 transitions. [2021-03-11 14:41:11,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7055 transitions. [2021-03-11 14:41:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:11,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:11,671 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:11,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618 [2021-03-11 14:41:11,671 INFO L428 AbstractCegarLoop]: === Iteration 620 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:11,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:11,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1821737616, now seen corresponding path program 612 times [2021-03-11 14:41:11,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:11,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517555783] [2021-03-11 14:41:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:11,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:11,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:11,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:11,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:11,691 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:11,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:11,708 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:11,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:11,733 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:11,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:11,767 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:11,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:11,806 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:11,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:11,883 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:11,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:11,968 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:11,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:12,038 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:12,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:12,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:12,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517555783] [2021-03-11 14:41:12,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:12,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:12,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808819849] [2021-03-11 14:41:12,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:12,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:12,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:12,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:12,099 INFO L87 Difference]: Start difference. First operand 1579 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:12,377 INFO L93 Difference]: Finished difference Result 2974 states and 11774 transitions. [2021-03-11 14:41:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:12,380 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:12,387 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:41:12,387 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:41:12,387 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 502.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:41:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1569. [2021-03-11 14:41:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.485331632653061) internal successors, (7033), 1568 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7033 transitions. [2021-03-11 14:41:12,437 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7033 transitions. Word has length 28 [2021-03-11 14:41:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:12,437 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7033 transitions. [2021-03-11 14:41:12,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7033 transitions. [2021-03-11 14:41:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:12,439 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:12,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:12,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619 [2021-03-11 14:41:12,440 INFO L428 AbstractCegarLoop]: === Iteration 621 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:12,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:12,440 INFO L82 PathProgramCache]: Analyzing trace with hash -704549904, now seen corresponding path program 613 times [2021-03-11 14:41:12,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:12,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707260139] [2021-03-11 14:41:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:12,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:12,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:12,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:12,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:12,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:12,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:12,490 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:12,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:12,521 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:12,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:12,554 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:12,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:12,601 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:41:12,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:41:12,658 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:12,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:12,725 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:12,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:12,815 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:12,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:12,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707260139] [2021-03-11 14:41:12,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:12,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:12,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075505757] [2021-03-11 14:41:12,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:12,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:12,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:12,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:12,897 INFO L87 Difference]: Start difference. First operand 1569 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:13,174 INFO L93 Difference]: Finished difference Result 2972 states and 11782 transitions. [2021-03-11 14:41:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:13,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:13,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:13,182 INFO L225 Difference]: With dead ends: 2972 [2021-03-11 14:41:13,182 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:41:13,183 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 516.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:13,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:41:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1579. [2021-03-11 14:41:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.473384030418251) internal successors, (7059), 1578 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7059 transitions. [2021-03-11 14:41:13,231 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7059 transitions. Word has length 28 [2021-03-11 14:41:13,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:13,231 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7059 transitions. [2021-03-11 14:41:13,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7059 transitions. [2021-03-11 14:41:13,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:13,233 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:13,233 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:13,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable620 [2021-03-11 14:41:13,233 INFO L428 AbstractCegarLoop]: === Iteration 622 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:13,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:13,233 INFO L82 PathProgramCache]: Analyzing trace with hash 784855092, now seen corresponding path program 614 times [2021-03-11 14:41:13,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:13,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317794225] [2021-03-11 14:41:13,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:13,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:13,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:13,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:13,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:13,254 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:13,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:13,270 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:13,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:13,293 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:13,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:13,323 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:13,360 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:41:13,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:41:13,406 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:13,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:13,465 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:13,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:13,533 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:13,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:13,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317794225] [2021-03-11 14:41:13,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:13,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:13,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400897441] [2021-03-11 14:41:13,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:13,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:13,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:13,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:13,594 INFO L87 Difference]: Start difference. First operand 1579 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:13,844 INFO L93 Difference]: Finished difference Result 2974 states and 11780 transitions. [2021-03-11 14:41:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:13,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:13,852 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:41:13,852 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:41:13,852 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 436.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:13,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:41:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1573. [2021-03-11 14:41:13,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.480916030534351) internal successors, (7044), 1572 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:13,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7044 transitions. [2021-03-11 14:41:13,899 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7044 transitions. Word has length 28 [2021-03-11 14:41:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:13,899 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7044 transitions. [2021-03-11 14:41:13,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7044 transitions. [2021-03-11 14:41:13,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:13,901 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:13,901 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:13,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621 [2021-03-11 14:41:13,901 INFO L428 AbstractCegarLoop]: === Iteration 623 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:13,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:13,902 INFO L82 PathProgramCache]: Analyzing trace with hash -166694326, now seen corresponding path program 615 times [2021-03-11 14:41:13,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:13,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17440403] [2021-03-11 14:41:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:13,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:13,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:13,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:13,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:13,922 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:13,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:13,939 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:13,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:13,962 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:13,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:13,992 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:13,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:14,030 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:41:14,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:41:14,075 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:14,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:14,131 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:14,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:14,198 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:14,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:14,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17440403] [2021-03-11 14:41:14,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:14,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:14,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616412788] [2021-03-11 14:41:14,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:14,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:14,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:14,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:14,258 INFO L87 Difference]: Start difference. First operand 1573 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:14,552 INFO L93 Difference]: Finished difference Result 2966 states and 11764 transitions. [2021-03-11 14:41:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:14,553 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:14,559 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:41:14,559 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:41:14,559 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 421.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:14,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:41:14,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1577. [2021-03-11 14:41:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.473984771573604) internal successors, (7051), 1576 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:14,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7051 transitions. [2021-03-11 14:41:14,605 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7051 transitions. Word has length 28 [2021-03-11 14:41:14,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:14,606 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7051 transitions. [2021-03-11 14:41:14,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:14,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7051 transitions. [2021-03-11 14:41:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:14,608 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:14,608 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:14,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable622 [2021-03-11 14:41:14,608 INFO L428 AbstractCegarLoop]: === Iteration 624 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:14,608 INFO L82 PathProgramCache]: Analyzing trace with hash -738149132, now seen corresponding path program 616 times [2021-03-11 14:41:14,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:14,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447324990] [2021-03-11 14:41:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:14,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:14,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:14,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:14,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:14,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:14,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:14,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:14,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:14,665 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:14,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:14,697 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:14,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:14,735 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:41:14,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:41:14,780 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:14,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:14,838 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:14,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:14,904 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:14,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:14,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:14,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447324990] [2021-03-11 14:41:14,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:14,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:14,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380842107] [2021-03-11 14:41:14,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:14,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:14,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:14,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:14,966 INFO L87 Difference]: Start difference. First operand 1577 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:15,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:15,290 INFO L93 Difference]: Finished difference Result 2964 states and 11756 transitions. [2021-03-11 14:41:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:15,291 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:15,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:15,298 INFO L225 Difference]: With dead ends: 2964 [2021-03-11 14:41:15,298 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:41:15,298 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 427.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:41:15,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1573. [2021-03-11 14:41:15,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.478371501272265) internal successors, (7040), 1572 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7040 transitions. [2021-03-11 14:41:15,345 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7040 transitions. Word has length 28 [2021-03-11 14:41:15,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:15,345 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7040 transitions. [2021-03-11 14:41:15,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7040 transitions. [2021-03-11 14:41:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:15,347 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:15,347 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:15,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623 [2021-03-11 14:41:15,347 INFO L428 AbstractCegarLoop]: === Iteration 625 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:15,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash 249625290, now seen corresponding path program 617 times [2021-03-11 14:41:15,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:15,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022843518] [2021-03-11 14:41:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:15,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:15,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:15,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:15,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:15,368 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:15,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:15,385 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:15,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:15,408 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:15,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:15,439 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:15,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:15,476 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:41:15,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:41:15,520 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:15,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:15,604 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:15,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:15,670 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:15,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:15,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022843518] [2021-03-11 14:41:15,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:15,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:15,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926071029] [2021-03-11 14:41:15,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:15,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:15,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:15,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:15,731 INFO L87 Difference]: Start difference. First operand 1573 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:16,023 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:41:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:16,043 INFO L93 Difference]: Finished difference Result 2970 states and 11768 transitions. [2021-03-11 14:41:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:16,045 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:16,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:16,050 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:41:16,051 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:41:16,051 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 464.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:16,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:41:16,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1577. [2021-03-11 14:41:16,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.471446700507614) internal successors, (7047), 1576 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7047 transitions. [2021-03-11 14:41:16,099 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7047 transitions. Word has length 28 [2021-03-11 14:41:16,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:16,099 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7047 transitions. [2021-03-11 14:41:16,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:16,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7047 transitions. [2021-03-11 14:41:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:16,101 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:16,101 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:16,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624 [2021-03-11 14:41:16,101 INFO L428 AbstractCegarLoop]: === Iteration 626 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:16,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:16,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1811234512, now seen corresponding path program 618 times [2021-03-11 14:41:16,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:16,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496999161] [2021-03-11 14:41:16,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:16,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:16,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:16,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:16,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:16,121 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:16,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:16,137 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:16,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:16,159 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:16,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:16,188 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:16,227 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:41:16,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:41:16,273 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:16,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:16,363 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:16,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:16,432 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:16,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:16,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496999161] [2021-03-11 14:41:16,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:16,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:16,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959376257] [2021-03-11 14:41:16,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:16,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:16,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:16,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:16,501 INFO L87 Difference]: Start difference. First operand 1577 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:16,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:16,777 INFO L93 Difference]: Finished difference Result 2966 states and 11756 transitions. [2021-03-11 14:41:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:16,779 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:16,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:16,785 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:41:16,785 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:41:16,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 473.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:16,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:41:16,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1569. [2021-03-11 14:41:16,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.482780612244898) internal successors, (7029), 1568 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:16,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7029 transitions. [2021-03-11 14:41:16,834 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7029 transitions. Word has length 28 [2021-03-11 14:41:16,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:16,835 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7029 transitions. [2021-03-11 14:41:16,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7029 transitions. [2021-03-11 14:41:16,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:16,837 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:16,837 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:16,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625 [2021-03-11 14:41:16,837 INFO L428 AbstractCegarLoop]: === Iteration 627 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:16,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:16,837 INFO L82 PathProgramCache]: Analyzing trace with hash 50655698, now seen corresponding path program 619 times [2021-03-11 14:41:16,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:16,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362285799] [2021-03-11 14:41:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:16,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:16,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:16,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:16,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:16,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:16,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:16,876 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:16,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:16,901 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:16,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:16,933 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:16,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:16,972 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:16,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:17,047 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:17,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:17,108 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:17,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:17,179 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:17,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:17,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362285799] [2021-03-11 14:41:17,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:17,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:17,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571143476] [2021-03-11 14:41:17,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:17,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:17,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:17,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:17,249 INFO L87 Difference]: Start difference. First operand 1569 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:17,503 INFO L93 Difference]: Finished difference Result 2995 states and 11824 transitions. [2021-03-11 14:41:17,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:17,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:17,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:17,511 INFO L225 Difference]: With dead ends: 2995 [2021-03-11 14:41:17,511 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:41:17,511 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 438.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:41:17,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1585. [2021-03-11 14:41:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.460858585858586) internal successors, (7066), 1584 states have internal predecessors, (7066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:17,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7066 transitions. [2021-03-11 14:41:17,560 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7066 transitions. Word has length 28 [2021-03-11 14:41:17,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:17,560 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7066 transitions. [2021-03-11 14:41:17,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:17,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7066 transitions. [2021-03-11 14:41:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:17,562 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:17,562 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:17,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626 [2021-03-11 14:41:17,562 INFO L428 AbstractCegarLoop]: === Iteration 628 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:17,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:17,562 INFO L82 PathProgramCache]: Analyzing trace with hash 795358196, now seen corresponding path program 620 times [2021-03-11 14:41:17,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:17,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627543495] [2021-03-11 14:41:17,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:17,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:17,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:17,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:17,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:17,583 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:17,600 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:17,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:17,623 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:17,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:17,653 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:17,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:17,690 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:17,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:17,761 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:17,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:17,822 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:17,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:17,889 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:17,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:17,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:17,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627543495] [2021-03-11 14:41:17,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:17,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:17,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332125820] [2021-03-11 14:41:17,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:17,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:17,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:17,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:17,952 INFO L87 Difference]: Start difference. First operand 1585 states and 7066 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:18,247 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:41:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:18,269 INFO L93 Difference]: Finished difference Result 2993 states and 11812 transitions. [2021-03-11 14:41:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:18,271 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:18,277 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:41:18,277 INFO L226 Difference]: Without dead ends: 2965 [2021-03-11 14:41:18,277 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 465.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2021-03-11 14:41:18,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1575. [2021-03-11 14:41:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.474587039390089) internal successors, (7043), 1574 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:18,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7043 transitions. [2021-03-11 14:41:18,325 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7043 transitions. Word has length 28 [2021-03-11 14:41:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:18,325 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7043 transitions. [2021-03-11 14:41:18,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7043 transitions. [2021-03-11 14:41:18,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:18,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:18,327 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:18,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable627 [2021-03-11 14:41:18,327 INFO L428 AbstractCegarLoop]: === Iteration 629 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:18,328 INFO L82 PathProgramCache]: Analyzing trace with hash 588511276, now seen corresponding path program 621 times [2021-03-11 14:41:18,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:18,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33706193] [2021-03-11 14:41:18,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:18,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:18,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:18,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:18,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:18,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:18,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:18,366 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:18,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:18,390 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:18,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:18,427 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:18,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:18,466 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:18,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:18,541 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:18,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:18,626 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:18,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:18,695 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:18,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:18,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33706193] [2021-03-11 14:41:18,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:18,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:18,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593939173] [2021-03-11 14:41:18,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:18,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:18,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:18,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:18,757 INFO L87 Difference]: Start difference. First operand 1575 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:18,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:18,966 INFO L93 Difference]: Finished difference Result 2986 states and 11797 transitions. [2021-03-11 14:41:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:18,968 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:18,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:18,974 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:41:18,974 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:41:18,974 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 453.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:18,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:41:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1580. [2021-03-11 14:41:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.465484483850538) internal successors, (7051), 1579 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7051 transitions. [2021-03-11 14:41:19,021 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7051 transitions. Word has length 28 [2021-03-11 14:41:19,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:19,021 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7051 transitions. [2021-03-11 14:41:19,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:19,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7051 transitions. [2021-03-11 14:41:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:19,024 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:19,024 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:19,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable628 [2021-03-11 14:41:19,024 INFO L428 AbstractCegarLoop]: === Iteration 630 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:19,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:19,024 INFO L82 PathProgramCache]: Analyzing trace with hash -727646028, now seen corresponding path program 622 times [2021-03-11 14:41:19,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:19,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376502287] [2021-03-11 14:41:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:19,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:19,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:19,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:19,045 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:19,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:19,062 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:19,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:19,086 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:19,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:19,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:19,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:19,151 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:19,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:19,219 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:19,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:19,298 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:19,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:19,363 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:19,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:19,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376502287] [2021-03-11 14:41:19,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:19,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:19,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073006275] [2021-03-11 14:41:19,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:19,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:19,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:19,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:19,426 INFO L87 Difference]: Start difference. First operand 1580 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:19,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:19,671 INFO L93 Difference]: Finished difference Result 2980 states and 11781 transitions. [2021-03-11 14:41:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:19,673 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:19,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:19,678 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:41:19,678 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:41:19,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 475.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:41:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1575. [2021-03-11 14:41:19,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.47141041931385) internal successors, (7038), 1574 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:19,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7038 transitions. [2021-03-11 14:41:19,732 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7038 transitions. Word has length 28 [2021-03-11 14:41:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:19,732 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7038 transitions. [2021-03-11 14:41:19,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:19,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7038 transitions. [2021-03-11 14:41:19,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:19,735 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:19,735 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:19,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable629 [2021-03-11 14:41:19,735 INFO L428 AbstractCegarLoop]: === Iteration 631 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:19,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1350812564, now seen corresponding path program 623 times [2021-03-11 14:41:19,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:19,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406819333] [2021-03-11 14:41:19,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:19,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:19,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:19,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:19,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:19,760 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:19,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:19,783 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:19,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:19,813 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:19,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:19,846 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:19,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:19,886 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:19,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:19,962 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:19,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:20,052 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:20,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:20,125 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:20,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:20,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406819333] [2021-03-11 14:41:20,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:20,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:20,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137593495] [2021-03-11 14:41:20,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:20,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:20,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:20,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:20,189 INFO L87 Difference]: Start difference. First operand 1575 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:20,427 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:41:20,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:20,447 INFO L93 Difference]: Finished difference Result 2981 states and 11784 transitions. [2021-03-11 14:41:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:20,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:20,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:20,456 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:41:20,456 INFO L226 Difference]: Without dead ends: 2963 [2021-03-11 14:41:20,456 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 529.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:20,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2021-03-11 14:41:20,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1579. [2021-03-11 14:41:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.464512040557668) internal successors, (7045), 1578 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7045 transitions. [2021-03-11 14:41:20,504 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7045 transitions. Word has length 28 [2021-03-11 14:41:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:20,504 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7045 transitions. [2021-03-11 14:41:20,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7045 transitions. [2021-03-11 14:41:20,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:20,506 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:20,506 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:20,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable630 [2021-03-11 14:41:20,506 INFO L428 AbstractCegarLoop]: === Iteration 632 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:20,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:20,506 INFO L82 PathProgramCache]: Analyzing trace with hash 883294930, now seen corresponding path program 624 times [2021-03-11 14:41:20,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:20,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225835133] [2021-03-11 14:41:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:20,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:20,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:20,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:20,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:20,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:20,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:20,546 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:20,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:20,571 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:20,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:20,603 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:20,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:20,643 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:20,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:20,718 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:20,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:20,808 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:20,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:20,872 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:20,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:20,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225835133] [2021-03-11 14:41:20,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:20,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:20,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444641965] [2021-03-11 14:41:20,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:20,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:20,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:20,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:20,931 INFO L87 Difference]: Start difference. First operand 1579 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:21,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:21,243 INFO L93 Difference]: Finished difference Result 2977 states and 11772 transitions. [2021-03-11 14:41:21,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:21,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:21,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:21,251 INFO L225 Difference]: With dead ends: 2977 [2021-03-11 14:41:21,251 INFO L226 Difference]: Without dead ends: 2947 [2021-03-11 14:41:21,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 495.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-03-11 14:41:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1563. [2021-03-11 14:41:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.489116517285531) internal successors, (7012), 1562 states have internal predecessors, (7012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:21,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7012 transitions. [2021-03-11 14:41:21,299 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7012 transitions. Word has length 28 [2021-03-11 14:41:21,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:21,299 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7012 transitions. [2021-03-11 14:41:21,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:21,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7012 transitions. [2021-03-11 14:41:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:21,302 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:21,302 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:21,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631 [2021-03-11 14:41:21,302 INFO L428 AbstractCegarLoop]: === Iteration 633 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:21,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:21,302 INFO L82 PathProgramCache]: Analyzing trace with hash -651605882, now seen corresponding path program 625 times [2021-03-11 14:41:21,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:21,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021551865] [2021-03-11 14:41:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:21,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:21,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:21,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:21,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:21,323 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:21,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:21,341 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:21,366 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:21,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:21,399 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:21,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:21,442 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:21,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:21,492 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:21,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:21,587 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:21,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:21,659 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:21,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:21,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021551865] [2021-03-11 14:41:21,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:21,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:21,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126453928] [2021-03-11 14:41:21,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:21,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:21,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:21,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:21,724 INFO L87 Difference]: Start difference. First operand 1563 states and 7012 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:22,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:22,039 INFO L93 Difference]: Finished difference Result 3017 states and 11911 transitions. [2021-03-11 14:41:22,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:22,041 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:22,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:22,047 INFO L225 Difference]: With dead ends: 3017 [2021-03-11 14:41:22,047 INFO L226 Difference]: Without dead ends: 3001 [2021-03-11 14:41:22,047 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 489.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2021-03-11 14:41:22,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 1588. [2021-03-11 14:41:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.468809073724008) internal successors, (7092), 1587 states have internal predecessors, (7092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:22,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7092 transitions. [2021-03-11 14:41:22,094 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7092 transitions. Word has length 28 [2021-03-11 14:41:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:22,094 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7092 transitions. [2021-03-11 14:41:22,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7092 transitions. [2021-03-11 14:41:22,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:22,096 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:22,097 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:22,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632 [2021-03-11 14:41:22,097 INFO L428 AbstractCegarLoop]: === Iteration 634 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:22,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:22,097 INFO L82 PathProgramCache]: Analyzing trace with hash 93096616, now seen corresponding path program 626 times [2021-03-11 14:41:22,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:22,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834194261] [2021-03-11 14:41:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:22,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:22,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:22,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:22,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:22,119 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:22,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:22,137 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:22,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:22,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:22,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:22,196 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:22,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:22,239 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:22,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:22,291 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:22,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:22,390 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:22,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:22,459 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:22,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:22,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834194261] [2021-03-11 14:41:22,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:22,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:22,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271846917] [2021-03-11 14:41:22,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:22,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:22,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:22,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:22,520 INFO L87 Difference]: Start difference. First operand 1588 states and 7092 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:22,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:22,819 INFO L93 Difference]: Finished difference Result 3021 states and 11912 transitions. [2021-03-11 14:41:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:22,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:22,828 INFO L225 Difference]: With dead ends: 3021 [2021-03-11 14:41:22,828 INFO L226 Difference]: Without dead ends: 2994 [2021-03-11 14:41:22,828 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 452.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2021-03-11 14:41:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1581. [2021-03-11 14:41:22,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.4759493670886075) internal successors, (7072), 1580 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7072 transitions. [2021-03-11 14:41:22,877 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7072 transitions. Word has length 28 [2021-03-11 14:41:22,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:22,877 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7072 transitions. [2021-03-11 14:41:22,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7072 transitions. [2021-03-11 14:41:22,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:22,879 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:22,880 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:22,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633 [2021-03-11 14:41:22,880 INFO L428 AbstractCegarLoop]: === Iteration 635 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:22,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:22,880 INFO L82 PathProgramCache]: Analyzing trace with hash 959335076, now seen corresponding path program 627 times [2021-03-11 14:41:22,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:22,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698535071] [2021-03-11 14:41:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:22,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:22,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:22,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:22,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:22,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:22,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:22,921 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:22,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:22,948 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:22,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:22,982 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:23,027 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:23,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:23,084 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:23,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:23,147 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:23,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:23,220 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:23,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698535071] [2021-03-11 14:41:23,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:23,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:23,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291384442] [2021-03-11 14:41:23,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:23,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:23,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:23,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:23,286 INFO L87 Difference]: Start difference. First operand 1581 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:23,559 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:23,584 INFO L93 Difference]: Finished difference Result 3014 states and 11899 transitions. [2021-03-11 14:41:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:23,593 INFO L225 Difference]: With dead ends: 3014 [2021-03-11 14:41:23,594 INFO L226 Difference]: Without dead ends: 2998 [2021-03-11 14:41:23,594 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 483.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:23,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-03-11 14:41:23,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 1587. [2021-03-11 14:41:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.465952080706179) internal successors, (7083), 1586 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:23,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7083 transitions. [2021-03-11 14:41:23,643 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7083 transitions. Word has length 28 [2021-03-11 14:41:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:23,643 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7083 transitions. [2021-03-11 14:41:23,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7083 transitions. [2021-03-11 14:41:23,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:23,646 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:23,646 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:23,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634 [2021-03-11 14:41:23,646 INFO L428 AbstractCegarLoop]: === Iteration 636 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:23,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:23,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1846227224, now seen corresponding path program 628 times [2021-03-11 14:41:23,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:23,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456987657] [2021-03-11 14:41:23,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:23,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:23,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:23,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:23,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:23,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:23,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:23,688 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:23,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:23,715 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:23,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:23,749 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:23,795 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:23,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:23,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:23,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:23,909 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:23,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:23,983 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:23,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:24,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456987657] [2021-03-11 14:41:24,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:24,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:24,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625347017] [2021-03-11 14:41:24,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:24,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:24,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:24,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:24,049 INFO L87 Difference]: Start difference. First operand 1587 states and 7083 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:24,348 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:41:24,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:24,380 INFO L93 Difference]: Finished difference Result 3016 states and 11897 transitions. [2021-03-11 14:41:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:24,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:24,389 INFO L225 Difference]: With dead ends: 3016 [2021-03-11 14:41:24,389 INFO L226 Difference]: Without dead ends: 2992 [2021-03-11 14:41:24,389 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 491.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-03-11 14:41:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 1581. [2021-03-11 14:41:24,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.472151898734177) internal successors, (7066), 1580 states have internal predecessors, (7066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:24,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7066 transitions. [2021-03-11 14:41:24,439 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7066 transitions. Word has length 28 [2021-03-11 14:41:24,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:24,439 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7066 transitions. [2021-03-11 14:41:24,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7066 transitions. [2021-03-11 14:41:24,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:24,441 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:24,441 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:24,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635 [2021-03-11 14:41:24,441 INFO L428 AbstractCegarLoop]: === Iteration 637 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:24,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:24,442 INFO L82 PathProgramCache]: Analyzing trace with hash -979988764, now seen corresponding path program 629 times [2021-03-11 14:41:24,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:24,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925908325] [2021-03-11 14:41:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:24,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:24,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:24,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:24,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:24,463 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:24,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:24,481 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:24,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:24,507 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:24,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:24,539 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:24,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:24,578 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:24,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:24,624 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:24,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:24,685 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:24,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:24,760 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:24,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:24,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925908325] [2021-03-11 14:41:24,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:24,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:24,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342808290] [2021-03-11 14:41:24,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:24,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:24,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:24,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:24,825 INFO L87 Difference]: Start difference. First operand 1581 states and 7066 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:25,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:25,093 INFO L93 Difference]: Finished difference Result 3026 states and 11916 transitions. [2021-03-11 14:41:25,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:25,095 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:25,101 INFO L225 Difference]: With dead ends: 3026 [2021-03-11 14:41:25,101 INFO L226 Difference]: Without dead ends: 3006 [2021-03-11 14:41:25,101 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 406.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2021-03-11 14:41:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1591. [2021-03-11 14:41:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1590 states have (on average 4.4547169811320755) internal successors, (7083), 1590 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:25,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 7083 transitions. [2021-03-11 14:41:25,148 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 7083 transitions. Word has length 28 [2021-03-11 14:41:25,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:25,148 INFO L480 AbstractCegarLoop]: Abstraction has 1591 states and 7083 transitions. [2021-03-11 14:41:25,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:25,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 7083 transitions. [2021-03-11 14:41:25,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:25,151 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:25,151 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:25,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable636 [2021-03-11 14:41:25,151 INFO L428 AbstractCegarLoop]: === Iteration 638 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:25,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:25,151 INFO L82 PathProgramCache]: Analyzing trace with hash -235286266, now seen corresponding path program 630 times [2021-03-11 14:41:25,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:25,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184420189] [2021-03-11 14:41:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:25,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:25,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:25,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:25,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:25,172 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:25,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:25,190 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:25,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:25,215 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:25,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:25,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:25,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:25,290 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:25,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:25,341 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:25,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:25,402 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:25,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:25,473 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:25,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184420189] [2021-03-11 14:41:25,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:25,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:25,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413437838] [2021-03-11 14:41:25,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:25,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:25,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:25,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:25,539 INFO L87 Difference]: Start difference. First operand 1591 states and 7083 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:25,785 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:41:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:25,812 INFO L93 Difference]: Finished difference Result 3024 states and 11904 transitions. [2021-03-11 14:41:25,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:25,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:25,820 INFO L225 Difference]: With dead ends: 3024 [2021-03-11 14:41:25,820 INFO L226 Difference]: Without dead ends: 2988 [2021-03-11 14:41:25,820 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 467.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-03-11 14:41:25,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1573. [2021-03-11 14:41:25,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.480279898218829) internal successors, (7043), 1572 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7043 transitions. [2021-03-11 14:41:25,867 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7043 transitions. Word has length 28 [2021-03-11 14:41:25,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:25,867 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7043 transitions. [2021-03-11 14:41:25,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7043 transitions. [2021-03-11 14:41:25,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:25,869 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:25,869 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:25,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable637 [2021-03-11 14:41:25,869 INFO L428 AbstractCegarLoop]: === Iteration 639 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:25,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:25,870 INFO L82 PathProgramCache]: Analyzing trace with hash -63860560, now seen corresponding path program 631 times [2021-03-11 14:41:25,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:25,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108422832] [2021-03-11 14:41:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:25,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:25,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:25,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:25,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:25,896 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:25,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:25,914 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:25,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:25,940 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:25,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:25,972 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:25,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:26,017 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:26,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:26,069 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:26,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:26,160 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:26,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:26,224 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:26,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:26,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:26,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108422832] [2021-03-11 14:41:26,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:26,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:26,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085065207] [2021-03-11 14:41:26,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:26,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:26,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:26,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:26,283 INFO L87 Difference]: Start difference. First operand 1573 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:26,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:26,603 INFO L93 Difference]: Finished difference Result 3013 states and 11895 transitions. [2021-03-11 14:41:26,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:26,605 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:26,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:26,611 INFO L225 Difference]: With dead ends: 3013 [2021-03-11 14:41:26,611 INFO L226 Difference]: Without dead ends: 2997 [2021-03-11 14:41:26,611 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 480.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-03-11 14:41:26,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 1587. [2021-03-11 14:41:26,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.465321563682219) internal successors, (7082), 1586 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:26,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7082 transitions. [2021-03-11 14:41:26,659 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7082 transitions. Word has length 28 [2021-03-11 14:41:26,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:26,659 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7082 transitions. [2021-03-11 14:41:26,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7082 transitions. [2021-03-11 14:41:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:26,661 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:26,661 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:26,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638 [2021-03-11 14:41:26,661 INFO L428 AbstractCegarLoop]: === Iteration 640 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:26,661 INFO L82 PathProgramCache]: Analyzing trace with hash 680841938, now seen corresponding path program 632 times [2021-03-11 14:41:26,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:26,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072155967] [2021-03-11 14:41:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:26,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:26,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:26,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:26,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:26,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:26,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:26,703 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:26,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:26,728 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:26,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:26,761 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:26,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:26,804 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:26,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:26,856 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:26,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:26,952 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:26,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:27,021 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:27,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:27,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072155967] [2021-03-11 14:41:27,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:27,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:27,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245339438] [2021-03-11 14:41:27,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:27,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:27,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:27,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:27,088 INFO L87 Difference]: Start difference. First operand 1587 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:27,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:27,328 INFO L93 Difference]: Finished difference Result 3017 states and 11896 transitions. [2021-03-11 14:41:27,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:27,329 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:27,336 INFO L225 Difference]: With dead ends: 3017 [2021-03-11 14:41:27,336 INFO L226 Difference]: Without dead ends: 2990 [2021-03-11 14:41:27,337 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 459.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-03-11 14:41:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1580. [2021-03-11 14:41:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.472450918302723) internal successors, (7062), 1579 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:27,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7062 transitions. [2021-03-11 14:41:27,385 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7062 transitions. Word has length 28 [2021-03-11 14:41:27,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:27,385 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7062 transitions. [2021-03-11 14:41:27,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:27,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7062 transitions. [2021-03-11 14:41:27,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:27,387 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:27,387 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:27,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable639 [2021-03-11 14:41:27,388 INFO L428 AbstractCegarLoop]: === Iteration 641 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:27,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:27,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1011850596, now seen corresponding path program 633 times [2021-03-11 14:41:27,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:27,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064588744] [2021-03-11 14:41:27,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:27,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:27,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:27,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:27,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:27,412 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:27,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:27,430 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:27,456 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:27,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:27,488 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:27,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:27,529 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:27,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:27,575 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:27,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:27,629 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:27,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:27,694 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:27,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:27,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064588744] [2021-03-11 14:41:27,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:27,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:27,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884326516] [2021-03-11 14:41:27,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:27,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:27,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:27,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:27,759 INFO L87 Difference]: Start difference. First operand 1580 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:28,023 INFO L93 Difference]: Finished difference Result 3009 states and 11881 transitions. [2021-03-11 14:41:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:28,026 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:28,032 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:41:28,032 INFO L226 Difference]: Without dead ends: 2993 [2021-03-11 14:41:28,032 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 441.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:28,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-03-11 14:41:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 1586. [2021-03-11 14:41:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.462460567823344) internal successors, (7073), 1585 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7073 transitions. [2021-03-11 14:41:28,079 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7073 transitions. Word has length 28 [2021-03-11 14:41:28,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:28,079 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7073 transitions. [2021-03-11 14:41:28,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7073 transitions. [2021-03-11 14:41:28,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:28,081 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:28,081 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:28,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable640 [2021-03-11 14:41:28,081 INFO L428 AbstractCegarLoop]: === Iteration 642 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:28,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:28,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1929800786, now seen corresponding path program 634 times [2021-03-11 14:41:28,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:28,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16576425] [2021-03-11 14:41:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:28,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:28,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:28,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:28,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:28,103 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:28,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:28,121 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:28,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:28,147 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:28,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:28,179 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:28,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:28,223 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:28,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:28,274 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:28,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:28,334 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:28,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:28,406 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:28,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:28,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16576425] [2021-03-11 14:41:28,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:28,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:28,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714001435] [2021-03-11 14:41:28,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:28,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:28,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:28,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:28,473 INFO L87 Difference]: Start difference. First operand 1586 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:28,745 INFO L93 Difference]: Finished difference Result 3010 states and 11877 transitions. [2021-03-11 14:41:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:28,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:28,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:28,753 INFO L225 Difference]: With dead ends: 3010 [2021-03-11 14:41:28,753 INFO L226 Difference]: Without dead ends: 2987 [2021-03-11 14:41:28,753 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 463.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2021-03-11 14:41:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1580. [2021-03-11 14:41:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.468651044965168) internal successors, (7056), 1579 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7056 transitions. [2021-03-11 14:41:28,799 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7056 transitions. Word has length 28 [2021-03-11 14:41:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:28,799 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7056 transitions. [2021-03-11 14:41:28,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:28,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7056 transitions. [2021-03-11 14:41:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:28,802 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:28,802 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:28,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable641 [2021-03-11 14:41:28,802 INFO L428 AbstractCegarLoop]: === Iteration 643 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:28,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:28,802 INFO L82 PathProgramCache]: Analyzing trace with hash -927473244, now seen corresponding path program 635 times [2021-03-11 14:41:28,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:28,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837730461] [2021-03-11 14:41:28,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:28,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:28,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:28,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:28,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:28,824 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:28,842 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:28,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:28,868 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:28,901 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:28,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:28,946 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:28,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:28,997 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:28,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:29,058 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:29,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:29,129 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:29,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:29,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837730461] [2021-03-11 14:41:29,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:29,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:29,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933291808] [2021-03-11 14:41:29,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:29,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:29,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:29,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:29,188 INFO L87 Difference]: Start difference. First operand 1580 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:29,420 INFO L93 Difference]: Finished difference Result 3019 states and 11894 transitions. [2021-03-11 14:41:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:29,427 INFO L225 Difference]: With dead ends: 3019 [2021-03-11 14:41:29,427 INFO L226 Difference]: Without dead ends: 2999 [2021-03-11 14:41:29,427 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 411.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:29,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-03-11 14:41:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 1588. [2021-03-11 14:41:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.4549464398235665) internal successors, (7070), 1587 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:29,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7070 transitions. [2021-03-11 14:41:29,474 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7070 transitions. Word has length 28 [2021-03-11 14:41:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:29,474 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7070 transitions. [2021-03-11 14:41:29,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7070 transitions. [2021-03-11 14:41:29,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:29,477 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:29,477 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:29,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable642 [2021-03-11 14:41:29,477 INFO L428 AbstractCegarLoop]: === Iteration 644 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:29,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:29,477 INFO L82 PathProgramCache]: Analyzing trace with hash -754225552, now seen corresponding path program 636 times [2021-03-11 14:41:29,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:29,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497958503] [2021-03-11 14:41:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:29,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:29,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:29,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:29,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:29,499 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:29,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:29,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:29,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:29,544 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:29,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:29,578 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:29,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:29,624 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:29,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:29,677 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:29,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:29,740 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:29,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:29,813 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:29,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:29,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497958503] [2021-03-11 14:41:29,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:29,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:29,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598983397] [2021-03-11 14:41:29,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:29,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:29,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:29,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:29,881 INFO L87 Difference]: Start difference. First operand 1588 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:30,245 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:30,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:30,272 INFO L93 Difference]: Finished difference Result 3016 states and 11881 transitions. [2021-03-11 14:41:30,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:30,274 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:30,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:30,280 INFO L225 Difference]: With dead ends: 3016 [2021-03-11 14:41:30,281 INFO L226 Difference]: Without dead ends: 2984 [2021-03-11 14:41:30,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 479.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2021-03-11 14:41:30,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1573. [2021-03-11 14:41:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.475826972010178) internal successors, (7036), 1572 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7036 transitions. [2021-03-11 14:41:30,328 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7036 transitions. Word has length 28 [2021-03-11 14:41:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:30,328 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7036 transitions. [2021-03-11 14:41:30,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7036 transitions. [2021-03-11 14:41:30,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:30,330 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:30,330 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:30,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643 [2021-03-11 14:41:30,330 INFO L428 AbstractCegarLoop]: === Iteration 645 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:30,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:30,331 INFO L82 PathProgramCache]: Analyzing trace with hash -53357456, now seen corresponding path program 637 times [2021-03-11 14:41:30,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:30,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938780053] [2021-03-11 14:41:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:30,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:30,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:30,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:30,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:30,353 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:30,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:30,371 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:30,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:30,397 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:30,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:30,432 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:30,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:30,477 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:30,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:30,529 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:30,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:30,591 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:30,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:30,659 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:30,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:30,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938780053] [2021-03-11 14:41:30,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:30,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:30,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731219761] [2021-03-11 14:41:30,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:30,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:30,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:30,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:30,720 INFO L87 Difference]: Start difference. First operand 1573 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:31,110 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:31,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:31,134 INFO L93 Difference]: Finished difference Result 3005 states and 11873 transitions. [2021-03-11 14:41:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:31,136 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:31,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:31,143 INFO L225 Difference]: With dead ends: 3005 [2021-03-11 14:41:31,143 INFO L226 Difference]: Without dead ends: 2989 [2021-03-11 14:41:31,143 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 471.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:31,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-03-11 14:41:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1585. [2021-03-11 14:41:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.463383838383838) internal successors, (7070), 1584 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7070 transitions. [2021-03-11 14:41:31,192 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7070 transitions. Word has length 28 [2021-03-11 14:41:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:31,192 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7070 transitions. [2021-03-11 14:41:31,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7070 transitions. [2021-03-11 14:41:31,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:31,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:31,194 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:31,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644 [2021-03-11 14:41:31,194 INFO L428 AbstractCegarLoop]: === Iteration 646 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:31,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:31,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1436047540, now seen corresponding path program 638 times [2021-03-11 14:41:31,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:31,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550405073] [2021-03-11 14:41:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:31,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:31,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:31,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:31,217 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:31,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:31,235 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:31,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:31,262 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:31,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:31,299 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:31,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:31,345 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:31,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:31,398 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:31,459 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:31,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:31,529 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:31,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:31,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550405073] [2021-03-11 14:41:31,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:31,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:31,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029026298] [2021-03-11 14:41:31,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:31,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:31,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:31,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:31,593 INFO L87 Difference]: Start difference. First operand 1585 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:31,972 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:41:31,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:31,999 INFO L93 Difference]: Finished difference Result 3007 states and 11871 transitions. [2021-03-11 14:41:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:32,008 INFO L225 Difference]: With dead ends: 3007 [2021-03-11 14:41:32,009 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:41:32,009 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 492.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:32,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:41:32,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1579. [2021-03-11 14:41:32,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.469581749049429) internal successors, (7053), 1578 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:32,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7053 transitions. [2021-03-11 14:41:32,059 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7053 transitions. Word has length 28 [2021-03-11 14:41:32,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:32,059 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7053 transitions. [2021-03-11 14:41:32,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7053 transitions. [2021-03-11 14:41:32,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:32,061 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:32,062 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:32,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable645 [2021-03-11 14:41:32,062 INFO L428 AbstractCegarLoop]: === Iteration 647 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:32,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:32,062 INFO L82 PathProgramCache]: Analyzing trace with hash -588587258, now seen corresponding path program 639 times [2021-03-11 14:41:32,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:32,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634499363] [2021-03-11 14:41:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:32,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:32,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:32,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:32,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:32,086 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:32,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:32,108 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:32,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:32,135 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:32,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:32,174 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:32,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:32,222 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:32,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:32,275 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:32,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:32,338 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:32,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:32,412 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:32,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:32,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634499363] [2021-03-11 14:41:32,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:32,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:32,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9492131] [2021-03-11 14:41:32,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:32,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:32,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:32,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:32,487 INFO L87 Difference]: Start difference. First operand 1579 states and 7053 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:32,893 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:41:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:32,917 INFO L93 Difference]: Finished difference Result 3004 states and 11865 transitions. [2021-03-11 14:41:32,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:32,920 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:32,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:32,927 INFO L225 Difference]: With dead ends: 3004 [2021-03-11 14:41:32,927 INFO L226 Difference]: Without dead ends: 2988 [2021-03-11 14:41:32,927 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 503.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-03-11 14:41:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1585. [2021-03-11 14:41:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.459595959595959) internal successors, (7064), 1584 states have internal predecessors, (7064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7064 transitions. [2021-03-11 14:41:32,979 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7064 transitions. Word has length 28 [2021-03-11 14:41:32,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:32,979 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7064 transitions. [2021-03-11 14:41:32,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7064 transitions. [2021-03-11 14:41:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:32,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:32,981 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:32,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646 [2021-03-11 14:41:32,981 INFO L428 AbstractCegarLoop]: === Iteration 648 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:32,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:32,982 INFO L82 PathProgramCache]: Analyzing trace with hash 329362932, now seen corresponding path program 640 times [2021-03-11 14:41:32,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:32,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63954414] [2021-03-11 14:41:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:32,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:32,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:32,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:32,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:33,004 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:33,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:33,023 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:33,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:33,048 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:33,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:33,081 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:33,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:33,125 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:33,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:33,176 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:33,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:33,237 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:33,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:33,306 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:33,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:33,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63954414] [2021-03-11 14:41:33,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:33,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:33,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751110150] [2021-03-11 14:41:33,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:33,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:33,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:33,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:33,372 INFO L87 Difference]: Start difference. First operand 1585 states and 7064 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:33,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:33,660 INFO L93 Difference]: Finished difference Result 3005 states and 11861 transitions. [2021-03-11 14:41:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:33,662 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:33,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:33,668 INFO L225 Difference]: With dead ends: 3005 [2021-03-11 14:41:33,668 INFO L226 Difference]: Without dead ends: 2982 [2021-03-11 14:41:33,668 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 458.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2021-03-11 14:41:33,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1579. [2021-03-11 14:41:33,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.465779467680608) internal successors, (7047), 1578 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7047 transitions. [2021-03-11 14:41:33,715 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7047 transitions. Word has length 28 [2021-03-11 14:41:33,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:33,715 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7047 transitions. [2021-03-11 14:41:33,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:33,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7047 transitions. [2021-03-11 14:41:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:33,717 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:33,717 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:33,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647 [2021-03-11 14:41:33,717 INFO L428 AbstractCegarLoop]: === Iteration 649 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:33,717 INFO L82 PathProgramCache]: Analyzing trace with hash -172267642, now seen corresponding path program 641 times [2021-03-11 14:41:33,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:33,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599999673] [2021-03-11 14:41:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:33,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:33,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:33,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:33,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:33,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:33,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:33,757 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:33,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:33,783 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:33,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:33,817 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:33,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:33,864 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:33,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:33,916 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:33,972 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:33,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:34,037 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:34,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:34,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599999673] [2021-03-11 14:41:34,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:34,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:34,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385379856] [2021-03-11 14:41:34,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:34,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:34,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:34,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:34,096 INFO L87 Difference]: Start difference. First operand 1579 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:34,363 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:41:34,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:34,385 INFO L93 Difference]: Finished difference Result 3009 states and 11870 transitions. [2021-03-11 14:41:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:34,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:34,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:34,394 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:41:34,394 INFO L226 Difference]: Without dead ends: 2991 [2021-03-11 14:41:34,394 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 458.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-03-11 14:41:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1586. [2021-03-11 14:41:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.454258675078864) internal successors, (7060), 1585 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:34,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7060 transitions. [2021-03-11 14:41:34,441 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7060 transitions. Word has length 28 [2021-03-11 14:41:34,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:34,441 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7060 transitions. [2021-03-11 14:41:34,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7060 transitions. [2021-03-11 14:41:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:34,443 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:34,443 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:34,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648 [2021-03-11 14:41:34,444 INFO L428 AbstractCegarLoop]: === Iteration 650 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:34,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:34,444 INFO L82 PathProgramCache]: Analyzing trace with hash -743722448, now seen corresponding path program 642 times [2021-03-11 14:41:34,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:34,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342767468] [2021-03-11 14:41:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:34,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:34,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:34,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:34,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:34,466 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:34,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:34,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:34,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:34,511 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:34,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:34,544 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:34,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:34,590 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:34,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:34,643 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:34,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:34,706 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:34,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:34,787 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:34,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:34,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342767468] [2021-03-11 14:41:34,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:34,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:34,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891549107] [2021-03-11 14:41:34,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:34,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:34,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:34,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:34,856 INFO L87 Difference]: Start difference. First operand 1586 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:35,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:35,173 INFO L93 Difference]: Finished difference Result 3008 states and 11861 transitions. [2021-03-11 14:41:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:35,182 INFO L225 Difference]: With dead ends: 3008 [2021-03-11 14:41:35,182 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:41:35,182 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 484.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:41:35,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1573. [2021-03-11 14:41:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.472010178117048) internal successors, (7030), 1572 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7030 transitions. [2021-03-11 14:41:35,229 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7030 transitions. Word has length 28 [2021-03-11 14:41:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:35,229 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7030 transitions. [2021-03-11 14:41:35,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7030 transitions. [2021-03-11 14:41:35,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:35,232 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:35,232 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:35,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649 [2021-03-11 14:41:35,232 INFO L428 AbstractCegarLoop]: === Iteration 651 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:35,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:35,232 INFO L82 PathProgramCache]: Analyzing trace with hash 701848146, now seen corresponding path program 643 times [2021-03-11 14:41:35,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:35,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357067700] [2021-03-11 14:41:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:35,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:35,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:35,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:35,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:35,254 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:35,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:35,273 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:35,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:35,298 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:35,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:35,331 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:35,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:35,372 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:41:35,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:41:35,424 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:35,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:35,485 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:35,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:35,558 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:35,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:35,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:35,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357067700] [2021-03-11 14:41:35,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:35,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:35,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291029689] [2021-03-11 14:41:35,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:35,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:35,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:35,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:35,622 INFO L87 Difference]: Start difference. First operand 1573 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:35,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:35,937 INFO L93 Difference]: Finished difference Result 3031 states and 11921 transitions. [2021-03-11 14:41:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:35,945 INFO L225 Difference]: With dead ends: 3031 [2021-03-11 14:41:35,945 INFO L226 Difference]: Without dead ends: 3011 [2021-03-11 14:41:35,946 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 412.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2021-03-11 14:41:35,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 1593. [2021-03-11 14:41:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 4.447236180904523) internal successors, (7080), 1592 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:35,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 7080 transitions. [2021-03-11 14:41:35,993 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 7080 transitions. Word has length 28 [2021-03-11 14:41:35,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:35,993 INFO L480 AbstractCegarLoop]: Abstraction has 1593 states and 7080 transitions. [2021-03-11 14:41:35,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:35,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 7080 transitions. [2021-03-11 14:41:35,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:35,995 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:35,995 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:35,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650 [2021-03-11 14:41:35,995 INFO L428 AbstractCegarLoop]: === Iteration 652 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:35,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:35,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1446550644, now seen corresponding path program 644 times [2021-03-11 14:41:35,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:35,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532318868] [2021-03-11 14:41:35,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:36,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:36,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:36,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:36,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:36,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:36,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:36,036 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:36,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:36,063 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:36,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:36,097 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:36,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:36,141 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:41:36,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:41:36,194 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:41:36,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:41:36,259 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:36,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:36,331 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:36,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:36,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532318868] [2021-03-11 14:41:36,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:36,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:36,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211781947] [2021-03-11 14:41:36,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:36,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:36,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:36,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:36,398 INFO L87 Difference]: Start difference. First operand 1593 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:36,666 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:41:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:36,690 INFO L93 Difference]: Finished difference Result 3029 states and 11909 transitions. [2021-03-11 14:41:36,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:36,692 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:36,698 INFO L225 Difference]: With dead ends: 3029 [2021-03-11 14:41:36,698 INFO L226 Difference]: Without dead ends: 3001 [2021-03-11 14:41:36,699 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 480.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:36,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2021-03-11 14:41:36,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 1583. [2021-03-11 14:41:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.458912768647282) internal successors, (7054), 1582 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7054 transitions. [2021-03-11 14:41:36,746 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7054 transitions. Word has length 28 [2021-03-11 14:41:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:36,746 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7054 transitions. [2021-03-11 14:41:36,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7054 transitions. [2021-03-11 14:41:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:36,748 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:36,748 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:36,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable651 [2021-03-11 14:41:36,748 INFO L428 AbstractCegarLoop]: === Iteration 653 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:36,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:36,748 INFO L82 PathProgramCache]: Analyzing trace with hash 166618344, now seen corresponding path program 645 times [2021-03-11 14:41:36,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:36,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86607266] [2021-03-11 14:41:36,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:36,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:36,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:36,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:36,771 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:36,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:36,789 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:36,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:36,816 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:36,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:36,850 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:36,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:36,894 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:41:36,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:41:36,946 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:36,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:37,007 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:37,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:37,081 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:37,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:37,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86607266] [2021-03-11 14:41:37,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:37,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:37,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365971220] [2021-03-11 14:41:37,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:37,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:37,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:37,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:37,146 INFO L87 Difference]: Start difference. First operand 1583 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:37,397 INFO L93 Difference]: Finished difference Result 3028 states and 11906 transitions. [2021-03-11 14:41:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:37,398 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:37,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:37,405 INFO L225 Difference]: With dead ends: 3028 [2021-03-11 14:41:37,405 INFO L226 Difference]: Without dead ends: 3008 [2021-03-11 14:41:37,405 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 428.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:37,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-03-11 14:41:37,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1591. [2021-03-11 14:41:37,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1590 states have (on average 4.445283018867925) internal successors, (7068), 1590 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:37,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 7068 transitions. [2021-03-11 14:41:37,453 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 7068 transitions. Word has length 28 [2021-03-11 14:41:37,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:37,453 INFO L480 AbstractCegarLoop]: Abstraction has 1591 states and 7068 transitions. [2021-03-11 14:41:37,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:37,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 7068 transitions. [2021-03-11 14:41:37,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:37,456 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:37,456 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:37,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable652 [2021-03-11 14:41:37,456 INFO L428 AbstractCegarLoop]: === Iteration 654 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:37,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:37,456 INFO L82 PathProgramCache]: Analyzing trace with hash 339866036, now seen corresponding path program 646 times [2021-03-11 14:41:37,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:37,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208648232] [2021-03-11 14:41:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:37,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:37,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:37,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:37,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:37,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:37,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:37,497 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:37,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:37,521 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:37,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:37,553 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:37,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:37,595 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:41:37,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:41:37,644 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:37,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:37,703 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:37,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:37,779 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:37,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:37,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208648232] [2021-03-11 14:41:37,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:37,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:37,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206234563] [2021-03-11 14:41:37,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:37,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:37,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:37,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:37,849 INFO L87 Difference]: Start difference. First operand 1591 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:38,116 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:38,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:38,145 INFO L93 Difference]: Finished difference Result 3025 states and 11893 transitions. [2021-03-11 14:41:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:38,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:38,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:38,154 INFO L225 Difference]: With dead ends: 3025 [2021-03-11 14:41:38,154 INFO L226 Difference]: Without dead ends: 3000 [2021-03-11 14:41:38,154 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 471.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:38,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2021-03-11 14:41:38,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1583. [2021-03-11 14:41:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.45385587863464) internal successors, (7046), 1582 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:38,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7046 transitions. [2021-03-11 14:41:38,201 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7046 transitions. Word has length 28 [2021-03-11 14:41:38,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:38,201 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7046 transitions. [2021-03-11 14:41:38,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7046 transitions. [2021-03-11 14:41:38,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:38,203 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:38,203 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:38,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable653 [2021-03-11 14:41:38,204 INFO L428 AbstractCegarLoop]: === Iteration 655 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:38,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1772705496, now seen corresponding path program 647 times [2021-03-11 14:41:38,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:38,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904620396] [2021-03-11 14:41:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:38,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:38,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:38,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:38,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:38,226 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:38,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:38,245 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:38,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:38,271 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:38,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:38,305 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:38,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:38,349 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:41:38,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:41:38,403 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:38,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:38,466 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:38,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:38,539 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:38,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:38,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904620396] [2021-03-11 14:41:38,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:38,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:38,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995807050] [2021-03-11 14:41:38,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:38,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:38,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:38,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:38,605 INFO L87 Difference]: Start difference. First operand 1583 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:38,839 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:41:38,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:38,861 INFO L93 Difference]: Finished difference Result 3023 states and 11890 transitions. [2021-03-11 14:41:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:38,863 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:38,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:38,869 INFO L225 Difference]: With dead ends: 3023 [2021-03-11 14:41:38,869 INFO L226 Difference]: Without dead ends: 3005 [2021-03-11 14:41:38,869 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 481.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:38,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2021-03-11 14:41:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 1590. [2021-03-11 14:41:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.442416614222782) internal successors, (7059), 1589 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7059 transitions. [2021-03-11 14:41:38,917 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7059 transitions. Word has length 28 [2021-03-11 14:41:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:38,917 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7059 transitions. [2021-03-11 14:41:38,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7059 transitions. [2021-03-11 14:41:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:38,919 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:38,919 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:38,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable654 [2021-03-11 14:41:38,919 INFO L428 AbstractCegarLoop]: === Iteration 656 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:38,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1950806994, now seen corresponding path program 648 times [2021-03-11 14:41:38,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:38,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773381967] [2021-03-11 14:41:38,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:38,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:38,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:38,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:38,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:38,942 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:38,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:38,960 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:38,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:38,986 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:38,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:39,020 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:41:39,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:41:39,065 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:41:39,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:41:39,119 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:39,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:39,179 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:39,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:39,246 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:39,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:39,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773381967] [2021-03-11 14:41:39,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:39,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:39,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282333938] [2021-03-11 14:41:39,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:39,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:39,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:39,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:39,308 INFO L87 Difference]: Start difference. First operand 1590 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:39,540 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:41:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:39,571 INFO L93 Difference]: Finished difference Result 3022 states and 11881 transitions. [2021-03-11 14:41:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:39,574 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:39,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:39,580 INFO L225 Difference]: With dead ends: 3022 [2021-03-11 14:41:39,581 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:41:39,581 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 466.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:39,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:41:39,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1563. [2021-03-11 14:41:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.4839948783610755) internal successors, (7004), 1562 states have internal predecessors, (7004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:39,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7004 transitions. [2021-03-11 14:41:39,634 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7004 transitions. Word has length 28 [2021-03-11 14:41:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:39,634 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7004 transitions. [2021-03-11 14:41:39,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7004 transitions. [2021-03-11 14:41:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:39,636 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:39,636 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:39,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable655 [2021-03-11 14:41:39,636 INFO L428 AbstractCegarLoop]: === Iteration 657 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:39,636 INFO L82 PathProgramCache]: Analyzing trace with hash 325182790, now seen corresponding path program 649 times [2021-03-11 14:41:39,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:39,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962056610] [2021-03-11 14:41:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:39,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:39,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:39,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:39,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:39,662 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:39,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:39,686 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:39,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:39,710 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:39,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:39,744 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:39,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:39,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:39,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:39,868 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:39,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:39,971 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:39,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:40,044 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:40,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:40,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962056610] [2021-03-11 14:41:40,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:40,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:40,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996609851] [2021-03-11 14:41:40,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:40,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:40,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:40,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:40,114 INFO L87 Difference]: Start difference. First operand 1563 states and 7004 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:40,363 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:40,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:40,387 INFO L93 Difference]: Finished difference Result 2974 states and 11781 transitions. [2021-03-11 14:41:40,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:40,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:40,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:40,395 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:41:40,395 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:41:40,395 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 553.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:41:40,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1580. [2021-03-11 14:41:40,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.46991766941102) internal successors, (7058), 1579 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:40,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7058 transitions. [2021-03-11 14:41:40,443 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7058 transitions. Word has length 28 [2021-03-11 14:41:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:40,443 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7058 transitions. [2021-03-11 14:41:40,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7058 transitions. [2021-03-11 14:41:40,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:40,446 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:40,446 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:40,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable656 [2021-03-11 14:41:40,446 INFO L428 AbstractCegarLoop]: === Iteration 658 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:40,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:40,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1069885288, now seen corresponding path program 650 times [2021-03-11 14:41:40,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:40,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774227207] [2021-03-11 14:41:40,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:40,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:40,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:40,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:40,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:40,469 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:40,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:40,488 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:40,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:40,515 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:40,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:40,559 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:40,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:40,608 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:40,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:40,693 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:40,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:40,798 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:40,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:40,878 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:40,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:40,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774227207] [2021-03-11 14:41:40,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:40,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:40,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930709520] [2021-03-11 14:41:40,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:40,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:40,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:40,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:40,955 INFO L87 Difference]: Start difference. First operand 1580 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:41,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:41,201 INFO L93 Difference]: Finished difference Result 2978 states and 11782 transitions. [2021-03-11 14:41:41,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:41,203 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:41,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:41,209 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:41:41,209 INFO L226 Difference]: Without dead ends: 2951 [2021-03-11 14:41:41,209 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 538.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:41,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-03-11 14:41:41,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1573. [2021-03-11 14:41:41,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.478371501272265) internal successors, (7040), 1572 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7040 transitions. [2021-03-11 14:41:41,259 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7040 transitions. Word has length 28 [2021-03-11 14:41:41,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:41,259 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7040 transitions. [2021-03-11 14:41:41,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:41,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7040 transitions. [2021-03-11 14:41:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:41,261 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:41,261 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:41,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable657 [2021-03-11 14:41:41,261 INFO L428 AbstractCegarLoop]: === Iteration 659 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:41,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:41,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1820987970, now seen corresponding path program 651 times [2021-03-11 14:41:41,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:41,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401255734] [2021-03-11 14:41:41,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:41,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:41,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:41,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:41,284 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:41,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:41,304 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:41,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:41,337 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:41,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:41,376 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:41,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:41,425 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:41,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:41,518 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:41,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:41,588 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:41,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:41,674 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:41,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:41,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:41,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401255734] [2021-03-11 14:41:41,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:41,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:41,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933148663] [2021-03-11 14:41:41,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:41,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:41,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:41,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:41,753 INFO L87 Difference]: Start difference. First operand 1573 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:42,071 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:42,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:42,100 INFO L93 Difference]: Finished difference Result 2965 states and 11757 transitions. [2021-03-11 14:41:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:42,102 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:42,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:42,109 INFO L225 Difference]: With dead ends: 2965 [2021-03-11 14:41:42,109 INFO L226 Difference]: Without dead ends: 2949 [2021-03-11 14:41:42,109 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 580.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:42,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2021-03-11 14:41:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1577. [2021-03-11 14:41:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.471446700507614) internal successors, (7047), 1576 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7047 transitions. [2021-03-11 14:41:42,161 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7047 transitions. Word has length 28 [2021-03-11 14:41:42,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:42,161 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7047 transitions. [2021-03-11 14:41:42,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7047 transitions. [2021-03-11 14:41:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:42,163 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:42,163 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:42,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658 [2021-03-11 14:41:42,163 INFO L428 AbstractCegarLoop]: === Iteration 660 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:42,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:42,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1902524520, now seen corresponding path program 652 times [2021-03-11 14:41:42,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:42,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014546964] [2021-03-11 14:41:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:42,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:42,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:42,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:42,188 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:42,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:42,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:42,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:42,241 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:42,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:42,280 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:42,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:42,330 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:42,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:42,425 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:42,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:42,491 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:42,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:42,566 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:42,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:42,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:42,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014546964] [2021-03-11 14:41:42,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:42,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:42,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133350732] [2021-03-11 14:41:42,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:42,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:42,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:42,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:42,633 INFO L87 Difference]: Start difference. First operand 1577 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:42,912 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:42,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:42,954 INFO L93 Difference]: Finished difference Result 2963 states and 11749 transitions. [2021-03-11 14:41:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:42,963 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:41:42,963 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:41:42,963 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 561.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:41:43,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1573. [2021-03-11 14:41:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.475826972010178) internal successors, (7036), 1572 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:43,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7036 transitions. [2021-03-11 14:41:43,015 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7036 transitions. Word has length 28 [2021-03-11 14:41:43,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:43,015 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7036 transitions. [2021-03-11 14:41:43,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:43,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7036 transitions. [2021-03-11 14:41:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:43,017 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:43,017 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:43,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659 [2021-03-11 14:41:43,017 INFO L428 AbstractCegarLoop]: === Iteration 661 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:43,018 INFO L82 PathProgramCache]: Analyzing trace with hash 534655486, now seen corresponding path program 653 times [2021-03-11 14:41:43,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:43,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444437010] [2021-03-11 14:41:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:43,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:43,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:43,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:43,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:43,043 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:43,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:43,065 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:43,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:43,095 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:43,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:43,136 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:43,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:43,188 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:43,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:43,285 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:43,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:43,386 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:43,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:43,466 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:43,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:43,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444437010] [2021-03-11 14:41:43,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:43,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:43,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616088617] [2021-03-11 14:41:43,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:43,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:43,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:43,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:43,539 INFO L87 Difference]: Start difference. First operand 1573 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:43,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:43,800 INFO L93 Difference]: Finished difference Result 2974 states and 11769 transitions. [2021-03-11 14:41:43,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:43,802 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:43,808 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:41:43,808 INFO L226 Difference]: Without dead ends: 2954 [2021-03-11 14:41:43,808 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 546.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-03-11 14:41:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1578. [2021-03-11 14:41:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.466708941027267) internal successors, (7044), 1577 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7044 transitions. [2021-03-11 14:41:43,855 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7044 transitions. Word has length 28 [2021-03-11 14:41:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:43,855 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7044 transitions. [2021-03-11 14:41:43,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7044 transitions. [2021-03-11 14:41:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:43,857 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:43,857 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:43,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660 [2021-03-11 14:41:43,858 INFO L428 AbstractCegarLoop]: === Iteration 662 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:43,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:43,858 INFO L82 PathProgramCache]: Analyzing trace with hash -781501818, now seen corresponding path program 654 times [2021-03-11 14:41:43,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:43,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604422679] [2021-03-11 14:41:43,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:43,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:43,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:43,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:43,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:43,880 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:43,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:43,898 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:43,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:43,924 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:43,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:43,958 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:43,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:44,002 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:44,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:44,083 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:44,167 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:44,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:44,234 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:44,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:44,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604422679] [2021-03-11 14:41:44,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:44,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:44,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271989680] [2021-03-11 14:41:44,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:44,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:44,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:44,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:44,306 INFO L87 Difference]: Start difference. First operand 1578 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:44,551 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:44,581 INFO L93 Difference]: Finished difference Result 2968 states and 11753 transitions. [2021-03-11 14:41:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:44,583 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:44,589 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:41:44,589 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:41:44,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 529.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:44,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:41:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1568. [2021-03-11 14:41:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.481174218251436) internal successors, (7022), 1567 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7022 transitions. [2021-03-11 14:41:44,639 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7022 transitions. Word has length 28 [2021-03-11 14:41:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:44,639 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7022 transitions. [2021-03-11 14:41:44,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7022 transitions. [2021-03-11 14:41:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:44,641 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:44,641 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:44,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661 [2021-03-11 14:41:44,641 INFO L428 AbstractCegarLoop]: === Iteration 663 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:44,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:44,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1419274378, now seen corresponding path program 655 times [2021-03-11 14:41:44,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:44,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611818450] [2021-03-11 14:41:44,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:44,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:44,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:44,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:44,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:44,666 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:44,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:44,687 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:44,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:44,717 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:44,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:44,755 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:44,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:44,803 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:44,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:44,861 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:44,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:44,965 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:44,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:45,043 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:45,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:45,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611818450] [2021-03-11 14:41:45,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:45,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:45,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77404078] [2021-03-11 14:41:45,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:45,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:45,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:45,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:45,113 INFO L87 Difference]: Start difference. First operand 1568 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:45,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:45,386 INFO L93 Difference]: Finished difference Result 2984 states and 11805 transitions. [2021-03-11 14:41:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:45,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:45,395 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:41:45,395 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:41:45,395 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 541.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:41:45,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1582. [2021-03-11 14:41:45,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.466160657811511) internal successors, (7061), 1581 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:45,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7061 transitions. [2021-03-11 14:41:45,442 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7061 transitions. Word has length 28 [2021-03-11 14:41:45,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:45,442 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7061 transitions. [2021-03-11 14:41:45,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7061 transitions. [2021-03-11 14:41:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:45,444 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:45,445 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:45,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable662 [2021-03-11 14:41:45,445 INFO L428 AbstractCegarLoop]: === Iteration 664 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:45,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2130990420, now seen corresponding path program 656 times [2021-03-11 14:41:45,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:45,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281829582] [2021-03-11 14:41:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:45,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:45,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:45,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:45,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:45,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:45,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:45,486 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:45,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:45,514 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:45,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:45,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:45,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:45,586 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:45,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:45,636 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:45,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:45,732 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:45,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:45,809 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:45,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:45,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:45,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281829582] [2021-03-11 14:41:45,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:45,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:45,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920162999] [2021-03-11 14:41:45,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:45,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:45,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:45,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:45,879 INFO L87 Difference]: Start difference. First operand 1582 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:46,114 INFO L93 Difference]: Finished difference Result 2988 states and 11806 transitions. [2021-03-11 14:41:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:46,123 INFO L225 Difference]: With dead ends: 2988 [2021-03-11 14:41:46,123 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:41:46,123 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 470.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:41:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1575. [2021-03-11 14:41:46,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.473316391359593) internal successors, (7041), 1574 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7041 transitions. [2021-03-11 14:41:46,172 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7041 transitions. Word has length 28 [2021-03-11 14:41:46,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:46,172 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7041 transitions. [2021-03-11 14:41:46,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:46,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7041 transitions. [2021-03-11 14:41:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:46,174 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:46,174 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:46,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable663 [2021-03-11 14:41:46,175 INFO L428 AbstractCegarLoop]: === Iteration 665 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1799981762, now seen corresponding path program 657 times [2021-03-11 14:41:46,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:46,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303646707] [2021-03-11 14:41:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:46,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:46,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:46,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:46,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:46,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:46,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:46,218 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:46,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:46,247 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:46,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:46,283 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:46,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:46,327 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:46,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:46,383 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:46,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:46,450 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:46,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:46,525 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:46,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:46,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303646707] [2021-03-11 14:41:46,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:46,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:46,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102187006] [2021-03-11 14:41:46,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:46,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:46,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:46,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:46,595 INFO L87 Difference]: Start difference. First operand 1575 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:46,855 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:46,879 INFO L93 Difference]: Finished difference Result 2980 states and 11791 transitions. [2021-03-11 14:41:46,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:46,881 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:46,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:46,887 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:41:46,887 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:41:46,887 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 499.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:41:46,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1581. [2021-03-11 14:41:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.463291139240506) internal successors, (7052), 1580 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:46,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7052 transitions. [2021-03-11 14:41:46,935 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7052 transitions. Word has length 28 [2021-03-11 14:41:46,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:46,935 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7052 transitions. [2021-03-11 14:41:46,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7052 transitions. [2021-03-11 14:41:46,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:46,937 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:46,938 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:46,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664 [2021-03-11 14:41:46,938 INFO L428 AbstractCegarLoop]: === Iteration 666 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:46,938 INFO L82 PathProgramCache]: Analyzing trace with hash -882031572, now seen corresponding path program 658 times [2021-03-11 14:41:46,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:46,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306175281] [2021-03-11 14:41:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:46,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:46,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:46,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:46,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:46,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:46,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:46,980 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:46,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:47,009 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:47,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:47,045 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:47,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:47,089 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:47,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:47,145 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:47,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:47,207 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:47,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:47,277 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:47,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:47,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306175281] [2021-03-11 14:41:47,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:47,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:47,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418193905] [2021-03-11 14:41:47,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:47,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:47,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:47,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:47,357 INFO L87 Difference]: Start difference. First operand 1581 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:47,613 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:47,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:47,645 INFO L93 Difference]: Finished difference Result 2981 states and 11787 transitions. [2021-03-11 14:41:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:47,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:47,654 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:41:47,654 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:41:47,654 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 498.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:47,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:41:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1575. [2021-03-11 14:41:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.469504447268107) internal successors, (7035), 1574 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7035 transitions. [2021-03-11 14:41:47,703 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7035 transitions. Word has length 28 [2021-03-11 14:41:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:47,703 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7035 transitions. [2021-03-11 14:41:47,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7035 transitions. [2021-03-11 14:41:47,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:47,705 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:47,705 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:47,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable665 [2021-03-11 14:41:47,705 INFO L428 AbstractCegarLoop]: === Iteration 667 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:47,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:47,705 INFO L82 PathProgramCache]: Analyzing trace with hash 555661694, now seen corresponding path program 659 times [2021-03-11 14:41:47,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:47,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296748594] [2021-03-11 14:41:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:47,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:47,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:47,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:47,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:47,728 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:47,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:47,748 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:47,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:47,775 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:47,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:47,810 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:47,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:47,857 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:47,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:47,914 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:47,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:47,981 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:47,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:48,061 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:48,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:48,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296748594] [2021-03-11 14:41:48,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:48,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:48,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616559532] [2021-03-11 14:41:48,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:48,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:48,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:48,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:48,131 INFO L87 Difference]: Start difference. First operand 1575 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:48,360 INFO L93 Difference]: Finished difference Result 2990 states and 11804 transitions. [2021-03-11 14:41:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:48,362 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:48,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:48,368 INFO L225 Difference]: With dead ends: 2990 [2021-03-11 14:41:48,368 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:41:48,368 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 458.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:48,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:41:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1583. [2021-03-11 14:41:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.45575221238938) internal successors, (7049), 1582 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7049 transitions. [2021-03-11 14:41:48,415 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7049 transitions. Word has length 28 [2021-03-11 14:41:48,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:48,415 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7049 transitions. [2021-03-11 14:41:48,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:48,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7049 transitions. [2021-03-11 14:41:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:48,418 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:48,418 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:48,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable666 [2021-03-11 14:41:48,418 INFO L428 AbstractCegarLoop]: === Iteration 668 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:48,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:48,418 INFO L82 PathProgramCache]: Analyzing trace with hash 728909386, now seen corresponding path program 660 times [2021-03-11 14:41:48,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:48,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319018770] [2021-03-11 14:41:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:48,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:48,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:48,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:48,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:48,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:48,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:48,461 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:48,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:48,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:48,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:48,525 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:48,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:48,571 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:41:48,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:41:48,629 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:48,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:48,690 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:48,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:48,760 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:48,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:48,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:48,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319018770] [2021-03-11 14:41:48,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:48,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:48,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888789938] [2021-03-11 14:41:48,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:48,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:48,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:48,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:48,827 INFO L87 Difference]: Start difference. First operand 1583 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:49,122 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:49,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:49,152 INFO L93 Difference]: Finished difference Result 2987 states and 11791 transitions. [2021-03-11 14:41:49,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:49,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:49,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:49,160 INFO L225 Difference]: With dead ends: 2987 [2021-03-11 14:41:49,160 INFO L226 Difference]: Without dead ends: 2955 [2021-03-11 14:41:49,161 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 488.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2021-03-11 14:41:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1568. [2021-03-11 14:41:49,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.477983407785578) internal successors, (7017), 1567 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7017 transitions. [2021-03-11 14:41:49,208 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7017 transitions. Word has length 28 [2021-03-11 14:41:49,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:49,208 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7017 transitions. [2021-03-11 14:41:49,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7017 transitions. [2021-03-11 14:41:49,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:49,210 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:49,210 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:49,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable667 [2021-03-11 14:41:49,210 INFO L428 AbstractCegarLoop]: === Iteration 669 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:49,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:49,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1461286794, now seen corresponding path program 661 times [2021-03-11 14:41:49,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:49,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260933087] [2021-03-11 14:41:49,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:49,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:49,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:49,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:49,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:49,234 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:49,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:49,253 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:49,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:49,281 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:49,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:49,316 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:49,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:49,360 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:49,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:49,414 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:49,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:49,479 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:49,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:49,559 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:49,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:49,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260933087] [2021-03-11 14:41:49,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:49,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:49,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994048622] [2021-03-11 14:41:49,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:49,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:49,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:49,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:49,633 INFO L87 Difference]: Start difference. First operand 1568 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:49,898 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:49,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:49,924 INFO L93 Difference]: Finished difference Result 2959 states and 11740 transitions. [2021-03-11 14:41:49,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:49,926 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:49,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:49,933 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:41:49,933 INFO L226 Difference]: Without dead ends: 2943 [2021-03-11 14:41:49,933 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 502.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:49,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-03-11 14:41:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1576. [2021-03-11 14:41:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.469206349206349) internal successors, (7039), 1575 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7039 transitions. [2021-03-11 14:41:49,981 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7039 transitions. Word has length 28 [2021-03-11 14:41:49,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:49,981 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7039 transitions. [2021-03-11 14:41:49,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7039 transitions. [2021-03-11 14:41:49,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:49,983 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:49,983 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:49,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668 [2021-03-11 14:41:49,983 INFO L428 AbstractCegarLoop]: === Iteration 670 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:49,984 INFO L82 PathProgramCache]: Analyzing trace with hash 889831988, now seen corresponding path program 662 times [2021-03-11 14:41:49,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:49,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682006869] [2021-03-11 14:41:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:49,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:49,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:49,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:49,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:50,007 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:50,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:50,029 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:50,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:50,057 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:50,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:50,093 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:50,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:50,135 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:50,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:50,185 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:50,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:50,244 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:50,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:50,318 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:50,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:50,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682006869] [2021-03-11 14:41:50,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:50,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:50,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581523455] [2021-03-11 14:41:50,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:50,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:50,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:50,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:50,389 INFO L87 Difference]: Start difference. First operand 1576 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:50,677 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:50,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:50,703 INFO L93 Difference]: Finished difference Result 2957 states and 11732 transitions. [2021-03-11 14:41:50,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:50,705 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:50,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:50,711 INFO L225 Difference]: With dead ends: 2957 [2021-03-11 14:41:50,711 INFO L226 Difference]: Without dead ends: 2939 [2021-03-11 14:41:50,711 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 484.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-03-11 14:41:50,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1572. [2021-03-11 14:41:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.473583704646722) internal successors, (7028), 1571 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7028 transitions. [2021-03-11 14:41:50,758 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7028 transitions. Word has length 28 [2021-03-11 14:41:50,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:50,759 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7028 transitions. [2021-03-11 14:41:50,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:50,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7028 transitions. [2021-03-11 14:41:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:50,761 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:50,761 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:50,761 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable669 [2021-03-11 14:41:50,761 INFO L428 AbstractCegarLoop]: === Iteration 671 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:50,761 INFO L82 PathProgramCache]: Analyzing trace with hash 388201414, now seen corresponding path program 663 times [2021-03-11 14:41:50,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:50,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141559264] [2021-03-11 14:41:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:50,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:50,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:50,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:50,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:50,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:50,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:50,805 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:50,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:50,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:50,869 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:50,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:50,914 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:50,968 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:50,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:51,038 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:51,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:51,120 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:51,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:51,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141559264] [2021-03-11 14:41:51,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:51,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:51,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338478323] [2021-03-11 14:41:51,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:51,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:51,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:51,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:51,190 INFO L87 Difference]: Start difference. First operand 1572 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:51,466 INFO L93 Difference]: Finished difference Result 2964 states and 11748 transitions. [2021-03-11 14:41:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:51,469 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:51,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:51,474 INFO L225 Difference]: With dead ends: 2964 [2021-03-11 14:41:51,475 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:41:51,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 498.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:41:51,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1578. [2021-03-11 14:41:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.463538363982245) internal successors, (7039), 1577 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7039 transitions. [2021-03-11 14:41:51,522 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7039 transitions. Word has length 28 [2021-03-11 14:41:51,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:51,522 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7039 transitions. [2021-03-11 14:41:51,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:51,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7039 transitions. [2021-03-11 14:41:51,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:51,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:51,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:51,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable670 [2021-03-11 14:41:51,524 INFO L428 AbstractCegarLoop]: === Iteration 672 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1306151604, now seen corresponding path program 664 times [2021-03-11 14:41:51,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:51,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571548649] [2021-03-11 14:41:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:51,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:51,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:51,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:51,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:51,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:51,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:51,571 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:51,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:51,601 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:51,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:51,638 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:51,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:51,682 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:51,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:51,737 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:51,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:51,803 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:51,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:51,879 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:51,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:51,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571548649] [2021-03-11 14:41:51,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:51,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:51,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48626053] [2021-03-11 14:41:51,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:51,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:51,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:51,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:51,952 INFO L87 Difference]: Start difference. First operand 1578 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:52,209 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:52,239 INFO L93 Difference]: Finished difference Result 2965 states and 11744 transitions. [2021-03-11 14:41:52,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:52,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:52,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:52,247 INFO L225 Difference]: With dead ends: 2965 [2021-03-11 14:41:52,248 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:41:52,248 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 502.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:52,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:41:52,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1572. [2021-03-11 14:41:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.471037555697008) internal successors, (7024), 1571 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7024 transitions. [2021-03-11 14:41:52,295 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7024 transitions. Word has length 28 [2021-03-11 14:41:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:52,295 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7024 transitions. [2021-03-11 14:41:52,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7024 transitions. [2021-03-11 14:41:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:52,298 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:52,298 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:52,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671 [2021-03-11 14:41:52,298 INFO L428 AbstractCegarLoop]: === Iteration 673 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:52,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:52,298 INFO L82 PathProgramCache]: Analyzing trace with hash -718483194, now seen corresponding path program 665 times [2021-03-11 14:41:52,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:52,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370527240] [2021-03-11 14:41:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:52,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:52,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:52,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:52,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:52,321 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:52,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:52,342 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:52,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:52,373 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:52,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:52,412 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:52,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:52,461 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:52,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:52,523 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:52,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:52,645 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:52,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:52,733 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:52,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:52,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370527240] [2021-03-11 14:41:52,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:52,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:52,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764356357] [2021-03-11 14:41:52,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:52,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:52,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:52,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:52,811 INFO L87 Difference]: Start difference. First operand 1572 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:53,115 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:53,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:53,144 INFO L93 Difference]: Finished difference Result 2958 states and 11730 transitions. [2021-03-11 14:41:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:53,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:53,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:53,153 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:41:53,153 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:41:53,153 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 600.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:41:53,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1576. [2021-03-11 14:41:53,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.464126984126984) internal successors, (7031), 1575 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:53,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7031 transitions. [2021-03-11 14:41:53,205 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7031 transitions. Word has length 28 [2021-03-11 14:41:53,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:53,205 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7031 transitions. [2021-03-11 14:41:53,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:53,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7031 transitions. [2021-03-11 14:41:53,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:53,207 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:53,207 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:53,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable672 [2021-03-11 14:41:53,207 INFO L428 AbstractCegarLoop]: === Iteration 674 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:53,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:53,208 INFO L82 PathProgramCache]: Analyzing trace with hash 770921802, now seen corresponding path program 666 times [2021-03-11 14:41:53,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:53,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170495522] [2021-03-11 14:41:53,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:53,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:53,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:53,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:53,233 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:53,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:53,257 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:53,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:53,290 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:53,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:53,333 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:53,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:53,383 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:41:53,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:41:53,442 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:53,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:53,559 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:53,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:53,645 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:53,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:53,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170495522] [2021-03-11 14:41:53,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:53,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:53,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297847879] [2021-03-11 14:41:53,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:53,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:53,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:53,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:53,715 INFO L87 Difference]: Start difference. First operand 1576 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:54,020 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:54,058 INFO L93 Difference]: Finished difference Result 2961 states and 11732 transitions. [2021-03-11 14:41:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:54,060 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:54,066 INFO L225 Difference]: With dead ends: 2961 [2021-03-11 14:41:54,066 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:41:54,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 593.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:41:54,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1568. [2021-03-11 14:41:54,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.475430759412891) internal successors, (7013), 1567 states have internal predecessors, (7013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7013 transitions. [2021-03-11 14:41:54,114 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7013 transitions. Word has length 28 [2021-03-11 14:41:54,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:54,114 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7013 transitions. [2021-03-11 14:41:54,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:54,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7013 transitions. [2021-03-11 14:41:54,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:54,117 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:54,117 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:54,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable673 [2021-03-11 14:41:54,117 INFO L428 AbstractCegarLoop]: === Iteration 675 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:54,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:54,117 INFO L82 PathProgramCache]: Analyzing trace with hash -2078474900, now seen corresponding path program 667 times [2021-03-11 14:41:54,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:54,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230908771] [2021-03-11 14:41:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:54,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:54,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:54,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:54,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:54,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:54,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:54,164 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:54,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:54,194 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:54,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:54,234 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:54,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:54,282 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:54,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:54,377 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:54,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:54,480 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:54,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:54,566 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:54,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:54,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230908771] [2021-03-11 14:41:54,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:54,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:54,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52036467] [2021-03-11 14:41:54,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:54,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:54,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:54,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:54,643 INFO L87 Difference]: Start difference. First operand 1568 states and 7013 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:54,882 INFO L93 Difference]: Finished difference Result 2976 states and 11769 transitions. [2021-03-11 14:41:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:54,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:54,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:54,890 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:41:54,890 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:41:54,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 551.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:54,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:41:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1578. [2021-03-11 14:41:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.463538363982245) internal successors, (7039), 1577 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:54,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7039 transitions. [2021-03-11 14:41:54,937 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7039 transitions. Word has length 28 [2021-03-11 14:41:54,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:54,937 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7039 transitions. [2021-03-11 14:41:54,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:54,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7039 transitions. [2021-03-11 14:41:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:54,940 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:54,940 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:54,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable674 [2021-03-11 14:41:54,940 INFO L428 AbstractCegarLoop]: === Iteration 676 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:54,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:54,940 INFO L82 PathProgramCache]: Analyzing trace with hash 900335092, now seen corresponding path program 668 times [2021-03-11 14:41:54,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:54,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53704805] [2021-03-11 14:41:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:54,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:54,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:54,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:54,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:54,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:54,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:54,981 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:54,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:55,010 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:55,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:55,049 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:55,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:55,095 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:55,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:55,187 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:41:55,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:41:55,285 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:55,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:55,364 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:55,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:55,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53704805] [2021-03-11 14:41:55,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:55,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:55,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374557429] [2021-03-11 14:41:55,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:55,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:55,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:55,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:55,437 INFO L87 Difference]: Start difference. First operand 1578 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:55,686 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:55,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:55,712 INFO L93 Difference]: Finished difference Result 2970 states and 11753 transitions. [2021-03-11 14:41:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:55,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:55,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:55,720 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:41:55,720 INFO L226 Difference]: Without dead ends: 2951 [2021-03-11 14:41:55,721 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 577.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:55,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-03-11 14:41:55,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1573. [2021-03-11 14:41:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.469465648854962) internal successors, (7026), 1572 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7026 transitions. [2021-03-11 14:41:55,768 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7026 transitions. Word has length 28 [2021-03-11 14:41:55,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:55,768 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7026 transitions. [2021-03-11 14:41:55,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7026 transitions. [2021-03-11 14:41:55,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:55,770 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:55,770 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:55,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable675 [2021-03-11 14:41:55,771 INFO L428 AbstractCegarLoop]: === Iteration 677 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:55,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1143407016, now seen corresponding path program 669 times [2021-03-11 14:41:55,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:55,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61925434] [2021-03-11 14:41:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:55,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:55,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:55,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:55,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:55,794 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:55,815 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:55,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:55,845 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:55,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:55,882 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:55,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:55,927 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:55,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:56,023 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:56,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:56,094 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:41:56,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:41:56,176 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:56,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:56,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:56,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61925434] [2021-03-11 14:41:56,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:56,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:56,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331000962] [2021-03-11 14:41:56,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:56,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:56,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:56,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:56,248 INFO L87 Difference]: Start difference. First operand 1573 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:56,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:56,529 INFO L93 Difference]: Finished difference Result 2982 states and 11779 transitions. [2021-03-11 14:41:56,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:56,531 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:56,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:56,537 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:41:56,537 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:41:56,537 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 508.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:41:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1581. [2021-03-11 14:41:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.455696202531645) internal successors, (7040), 1580 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7040 transitions. [2021-03-11 14:41:56,585 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7040 transitions. Word has length 28 [2021-03-11 14:41:56,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:56,585 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7040 transitions. [2021-03-11 14:41:56,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:56,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7040 transitions. [2021-03-11 14:41:56,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:56,588 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:56,588 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:56,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable676 [2021-03-11 14:41:56,588 INFO L428 AbstractCegarLoop]: === Iteration 678 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:56,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1316654708, now seen corresponding path program 670 times [2021-03-11 14:41:56,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:56,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979771758] [2021-03-11 14:41:56,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:56,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:56,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:56,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:56,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:56,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:56,631 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:56,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:56,660 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:56,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:56,696 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:56,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:56,741 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:56,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:56,829 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:41:56,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:41:56,890 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:56,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:56,960 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:56,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:57,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979771758] [2021-03-11 14:41:57,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:57,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:57,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727623347] [2021-03-11 14:41:57,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:57,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:57,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:57,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:57,027 INFO L87 Difference]: Start difference. First operand 1581 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:57,284 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:57,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:57,315 INFO L93 Difference]: Finished difference Result 2979 states and 11766 transitions. [2021-03-11 14:41:57,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:57,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:57,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:57,323 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:41:57,323 INFO L226 Difference]: Without dead ends: 2954 [2021-03-11 14:41:57,324 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 521.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-03-11 14:41:57,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1573. [2021-03-11 14:41:57,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.466284987277354) internal successors, (7021), 1572 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:57,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7021 transitions. [2021-03-11 14:41:57,371 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7021 transitions. Word has length 28 [2021-03-11 14:41:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:57,371 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7021 transitions. [2021-03-11 14:41:57,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7021 transitions. [2021-03-11 14:41:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:57,374 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:57,374 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:57,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677 [2021-03-11 14:41:57,374 INFO L428 AbstractCegarLoop]: === Iteration 679 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:57,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:57,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1976046248, now seen corresponding path program 671 times [2021-03-11 14:41:57,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:57,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180986099] [2021-03-11 14:41:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:57,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:57,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:57,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:57,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:57,402 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:57,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:57,422 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:57,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:57,451 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:57,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:57,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:57,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:57,533 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:57,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:57,627 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:57,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:57,740 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:57,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:57,821 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:57,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:57,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180986099] [2021-03-11 14:41:57,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:57,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:57,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948902905] [2021-03-11 14:41:57,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:57,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:57,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:57,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:57,897 INFO L87 Difference]: Start difference. First operand 1573 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:58,157 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:41:58,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:58,181 INFO L93 Difference]: Finished difference Result 2966 states and 11741 transitions. [2021-03-11 14:41:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:58,184 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:58,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:58,190 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:41:58,191 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:41:58,191 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 596.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:58,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:41:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1577. [2021-03-11 14:41:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.459390862944162) internal successors, (7028), 1576 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:58,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7028 transitions. [2021-03-11 14:41:58,238 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7028 transitions. Word has length 28 [2021-03-11 14:41:58,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:58,238 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7028 transitions. [2021-03-11 14:41:58,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:58,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7028 transitions. [2021-03-11 14:41:58,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:58,240 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:58,240 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:58,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable678 [2021-03-11 14:41:58,240 INFO L428 AbstractCegarLoop]: === Iteration 680 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:58,240 INFO L82 PathProgramCache]: Analyzing trace with hash -829516052, now seen corresponding path program 672 times [2021-03-11 14:41:58,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:58,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064257220] [2021-03-11 14:41:58,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:58,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:58,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:58,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:58,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:58,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:58,298 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:58,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:58,337 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:58,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:58,385 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:58,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:58,445 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:41:58,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:41:58,568 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:41:58,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:41:58,703 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:41:58,706 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:58,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:58,808 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:58,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:58,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064257220] [2021-03-11 14:41:58,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:58,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:58,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215947013] [2021-03-11 14:41:58,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:58,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:58,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:58,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:58,890 INFO L87 Difference]: Start difference. First operand 1577 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:59,150 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:59,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:59,184 INFO L93 Difference]: Finished difference Result 2969 states and 11743 transitions. [2021-03-11 14:41:59,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:59,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:59,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:59,192 INFO L225 Difference]: With dead ends: 2969 [2021-03-11 14:41:59,192 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:41:59,192 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 722.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:41:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:41:59,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1563. [2021-03-11 14:41:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.480793854033291) internal successors, (6999), 1562 states have internal predecessors, (6999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 6999 transitions. [2021-03-11 14:41:59,240 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 6999 transitions. Word has length 28 [2021-03-11 14:41:59,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:41:59,240 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 6999 transitions. [2021-03-11 14:41:59,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:59,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 6999 transitions. [2021-03-11 14:41:59,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:41:59,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:41:59,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:41:59,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable679 [2021-03-11 14:41:59,243 INFO L428 AbstractCegarLoop]: === Iteration 681 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:41:59,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:41:59,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2033247324, now seen corresponding path program 673 times [2021-03-11 14:41:59,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:41:59,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668700983] [2021-03-11 14:41:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:41:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:41:59,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:59,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:41:59,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:41:59,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:41:59,266 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:41:59,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:41:59,287 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:41:59,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:41:59,316 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:41:59,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:41:59,355 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:41:59,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:41:59,402 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:41:59,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:41:59,458 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:41:59,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:41:59,528 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:41:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:41:59,612 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:41:59,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:41:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:41:59,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668700983] [2021-03-11 14:41:59,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:41:59,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:41:59,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367887791] [2021-03-11 14:41:59,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:41:59,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:41:59,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:41:59,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:41:59,685 INFO L87 Difference]: Start difference. First operand 1563 states and 6999 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:41:59,951 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:41:59,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:41:59,975 INFO L93 Difference]: Finished difference Result 2957 states and 11739 transitions. [2021-03-11 14:41:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:41:59,977 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:41:59,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:41:59,983 INFO L225 Difference]: With dead ends: 2957 [2021-03-11 14:41:59,983 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:41:59,983 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 521.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:00,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:42:00,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1577. [2021-03-11 14:42:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.469543147208122) internal successors, (7044), 1576 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7044 transitions. [2021-03-11 14:42:00,032 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7044 transitions. Word has length 28 [2021-03-11 14:42:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:00,032 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7044 transitions. [2021-03-11 14:42:00,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7044 transitions. [2021-03-11 14:42:00,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:00,035 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:00,035 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:00,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680 [2021-03-11 14:42:00,035 INFO L428 AbstractCegarLoop]: === Iteration 682 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:00,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:00,035 INFO L82 PathProgramCache]: Analyzing trace with hash -543842328, now seen corresponding path program 674 times [2021-03-11 14:42:00,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:00,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250423215] [2021-03-11 14:42:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:00,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:00,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:00,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:00,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:00,060 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:00,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:00,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:00,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:00,113 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:00,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:00,154 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:00,202 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:42:00,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:42:00,258 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:00,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:00,327 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:00,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:00,403 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:00,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:00,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250423215] [2021-03-11 14:42:00,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:00,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:00,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212507816] [2021-03-11 14:42:00,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:00,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:00,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:00,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:00,471 INFO L87 Difference]: Start difference. First operand 1577 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:00,791 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:42:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:00,818 INFO L93 Difference]: Finished difference Result 2959 states and 11737 transitions. [2021-03-11 14:42:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:00,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:00,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:00,827 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:42:00,827 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:42:00,827 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 536.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:00,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:42:00,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1571. [2021-03-11 14:42:00,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.477070063694267) internal successors, (7029), 1570 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:00,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7029 transitions. [2021-03-11 14:42:00,874 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7029 transitions. Word has length 28 [2021-03-11 14:42:00,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:00,874 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7029 transitions. [2021-03-11 14:42:00,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:00,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7029 transitions. [2021-03-11 14:42:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:00,876 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:00,876 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:00,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable681 [2021-03-11 14:42:00,878 INFO L428 AbstractCegarLoop]: === Iteration 683 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:00,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1495391746, now seen corresponding path program 675 times [2021-03-11 14:42:00,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:00,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438023162] [2021-03-11 14:42:00,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:00,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:00,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:00,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:00,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:00,903 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:00,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:00,928 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:00,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:00,961 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:00,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:01,002 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:01,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:01,053 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:42:01,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:42:01,112 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:01,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:01,185 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:01,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:01,271 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:01,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:01,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438023162] [2021-03-11 14:42:01,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:01,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:01,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327340354] [2021-03-11 14:42:01,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:01,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:01,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:01,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:01,349 INFO L87 Difference]: Start difference. First operand 1571 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:01,647 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:01,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:01,670 INFO L93 Difference]: Finished difference Result 2951 states and 11721 transitions. [2021-03-11 14:42:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:01,672 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:01,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:01,678 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:42:01,679 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:42:01,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 551.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:42:01,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1575. [2021-03-11 14:42:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.470139771283354) internal successors, (7036), 1574 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7036 transitions. [2021-03-11 14:42:01,726 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7036 transitions. Word has length 28 [2021-03-11 14:42:01,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:01,726 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7036 transitions. [2021-03-11 14:42:01,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7036 transitions. [2021-03-11 14:42:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:01,728 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:01,728 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:01,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682 [2021-03-11 14:42:01,728 INFO L428 AbstractCegarLoop]: === Iteration 684 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:01,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:01,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2066846552, now seen corresponding path program 676 times [2021-03-11 14:42:01,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:01,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346027928] [2021-03-11 14:42:01,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:01,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:01,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:01,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:01,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:01,753 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:01,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:01,773 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:01,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:01,803 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:01,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:01,842 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:01,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:01,890 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:42:01,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:42:01,947 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:01,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:02,017 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:02,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:02,100 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:02,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:02,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346027928] [2021-03-11 14:42:02,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:02,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:02,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594186951] [2021-03-11 14:42:02,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:02,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:02,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:02,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:02,177 INFO L87 Difference]: Start difference. First operand 1575 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:02,460 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:02,498 INFO L93 Difference]: Finished difference Result 2949 states and 11713 transitions. [2021-03-11 14:42:02,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:02,501 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:02,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:02,507 INFO L225 Difference]: With dead ends: 2949 [2021-03-11 14:42:02,507 INFO L226 Difference]: Without dead ends: 2931 [2021-03-11 14:42:02,507 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 535.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:02,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2021-03-11 14:42:02,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 1571. [2021-03-11 14:42:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.474522292993631) internal successors, (7025), 1570 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:02,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7025 transitions. [2021-03-11 14:42:02,556 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7025 transitions. Word has length 28 [2021-03-11 14:42:02,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:02,556 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7025 transitions. [2021-03-11 14:42:02,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7025 transitions. [2021-03-11 14:42:02,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:02,559 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:02,559 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:02,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683 [2021-03-11 14:42:02,559 INFO L428 AbstractCegarLoop]: === Iteration 685 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:02,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:02,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1079072130, now seen corresponding path program 677 times [2021-03-11 14:42:02,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:02,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323218270] [2021-03-11 14:42:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:02,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:02,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:02,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:02,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:02,584 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:02,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:02,606 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:02,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:02,636 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:02,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:02,676 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:02,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:02,725 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:42:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:42:02,782 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:02,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:02,887 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:02,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:02,972 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:02,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:03,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323218270] [2021-03-11 14:42:03,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:03,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:03,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110682023] [2021-03-11 14:42:03,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:03,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:03,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:03,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:03,048 INFO L87 Difference]: Start difference. First operand 1571 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:03,366 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:42:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:03,390 INFO L93 Difference]: Finished difference Result 2955 states and 11725 transitions. [2021-03-11 14:42:03,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:03,392 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:03,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:03,399 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:42:03,399 INFO L226 Difference]: Without dead ends: 2937 [2021-03-11 14:42:03,399 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 575.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:03,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-03-11 14:42:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1575. [2021-03-11 14:42:03,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.467598475222363) internal successors, (7032), 1574 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7032 transitions. [2021-03-11 14:42:03,447 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7032 transitions. Word has length 28 [2021-03-11 14:42:03,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:03,447 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7032 transitions. [2021-03-11 14:42:03,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7032 transitions. [2021-03-11 14:42:03,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:03,449 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:03,450 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:03,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable684 [2021-03-11 14:42:03,450 INFO L428 AbstractCegarLoop]: === Iteration 686 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:03,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:03,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1155035364, now seen corresponding path program 678 times [2021-03-11 14:42:03,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:03,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627202398] [2021-03-11 14:42:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:03,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:03,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:03,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:03,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:03,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:03,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:03,519 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:03,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:03,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:03,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:03,582 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:03,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:03,628 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:42:03,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:42:03,688 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:03,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:03,786 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:03,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:03,863 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:03,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:03,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627202398] [2021-03-11 14:42:03,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:03,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:03,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524290555] [2021-03-11 14:42:03,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:03,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:03,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:03,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:03,930 INFO L87 Difference]: Start difference. First operand 1575 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:04,243 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:04,281 INFO L93 Difference]: Finished difference Result 2951 states and 11713 transitions. [2021-03-11 14:42:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:04,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:04,290 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:42:04,290 INFO L226 Difference]: Without dead ends: 2929 [2021-03-11 14:42:04,290 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 564.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:04,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-03-11 14:42:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1567. [2021-03-11 14:42:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.478927203065134) internal successors, (7014), 1566 states have internal predecessors, (7014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:04,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7014 transitions. [2021-03-11 14:42:04,338 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7014 transitions. Word has length 28 [2021-03-11 14:42:04,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:04,338 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7014 transitions. [2021-03-11 14:42:04,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:04,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7014 transitions. [2021-03-11 14:42:04,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:04,341 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:04,341 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:04,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685 [2021-03-11 14:42:04,341 INFO L428 AbstractCegarLoop]: === Iteration 687 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:04,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:04,341 INFO L82 PathProgramCache]: Analyzing trace with hash -939155736, now seen corresponding path program 679 times [2021-03-11 14:42:04,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:04,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103469153] [2021-03-11 14:42:04,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:04,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:04,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:04,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:04,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:04,367 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:04,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:04,388 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:04,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:04,417 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:04,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:04,456 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:04,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:04,501 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:42:04,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:42:04,559 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:04,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:04,627 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:04,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:04,708 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:04,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:04,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103469153] [2021-03-11 14:42:04,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:04,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:04,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12998216] [2021-03-11 14:42:04,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:04,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:04,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:04,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:04,774 INFO L87 Difference]: Start difference. First operand 1567 states and 7014 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:05,067 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:05,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:05,092 INFO L93 Difference]: Finished difference Result 2967 states and 11764 transitions. [2021-03-11 14:42:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:05,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:05,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:05,100 INFO L225 Difference]: With dead ends: 2967 [2021-03-11 14:42:05,100 INFO L226 Difference]: Without dead ends: 2951 [2021-03-11 14:42:05,100 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 516.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:05,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-03-11 14:42:05,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1579. [2021-03-11 14:42:05,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.466413181242078) internal successors, (7048), 1578 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7048 transitions. [2021-03-11 14:42:05,147 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7048 transitions. Word has length 28 [2021-03-11 14:42:05,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:05,147 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7048 transitions. [2021-03-11 14:42:05,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7048 transitions. [2021-03-11 14:42:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:05,149 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:05,149 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:05,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable686 [2021-03-11 14:42:05,149 INFO L428 AbstractCegarLoop]: === Iteration 688 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:05,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:05,149 INFO L82 PathProgramCache]: Analyzing trace with hash 550249260, now seen corresponding path program 680 times [2021-03-11 14:42:05,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:05,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436571881] [2021-03-11 14:42:05,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:05,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:05,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:05,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:05,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:05,173 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:05,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:05,192 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:05,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:05,220 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:05,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:05,256 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:05,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:05,300 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:42:05,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:42:05,360 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:05,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:05,428 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:05,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:05,511 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:05,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:05,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436571881] [2021-03-11 14:42:05,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:05,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:05,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682604299] [2021-03-11 14:42:05,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:05,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:05,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:05,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:05,582 INFO L87 Difference]: Start difference. First operand 1579 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:05,998 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:42:06,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:06,026 INFO L93 Difference]: Finished difference Result 2969 states and 11762 transitions. [2021-03-11 14:42:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:06,028 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:06,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:06,035 INFO L225 Difference]: With dead ends: 2969 [2021-03-11 14:42:06,035 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:42:06,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 522.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:06,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:42:06,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1573. [2021-03-11 14:42:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.4726463104325695) internal successors, (7031), 1572 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7031 transitions. [2021-03-11 14:42:06,083 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7031 transitions. Word has length 28 [2021-03-11 14:42:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:06,083 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7031 transitions. [2021-03-11 14:42:06,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7031 transitions. [2021-03-11 14:42:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:06,086 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:06,086 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:06,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable687 [2021-03-11 14:42:06,086 INFO L428 AbstractCegarLoop]: === Iteration 689 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:06,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:06,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1474385538, now seen corresponding path program 681 times [2021-03-11 14:42:06,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:06,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432782858] [2021-03-11 14:42:06,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:06,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:06,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:06,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:06,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:06,111 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:06,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:06,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:06,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:06,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:06,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:06,199 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:06,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:06,245 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:42:06,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:42:06,303 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:06,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:06,372 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:06,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:06,454 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:06,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:06,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:06,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432782858] [2021-03-11 14:42:06,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:06,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:06,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201613305] [2021-03-11 14:42:06,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:06,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:06,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:06,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:06,527 INFO L87 Difference]: Start difference. First operand 1573 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:06,938 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:06,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:06,960 INFO L93 Difference]: Finished difference Result 2966 states and 11756 transitions. [2021-03-11 14:42:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:06,969 INFO L225 Difference]: With dead ends: 2966 [2021-03-11 14:42:06,969 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:42:06,969 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 519.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:42:07,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1579. [2021-03-11 14:42:07,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.462610899873257) internal successors, (7042), 1578 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7042 transitions. [2021-03-11 14:42:07,016 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7042 transitions. Word has length 28 [2021-03-11 14:42:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:07,016 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7042 transitions. [2021-03-11 14:42:07,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:07,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7042 transitions. [2021-03-11 14:42:07,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:07,018 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:07,018 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:07,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable688 [2021-03-11 14:42:07,018 INFO L428 AbstractCegarLoop]: === Iteration 690 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:07,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:07,019 INFO L82 PathProgramCache]: Analyzing trace with hash -556435348, now seen corresponding path program 682 times [2021-03-11 14:42:07,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:07,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682788124] [2021-03-11 14:42:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:07,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:07,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:07,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:07,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:07,042 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:07,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:07,061 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:07,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:07,089 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:07,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:07,127 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:07,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:07,172 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:42:07,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:42:07,226 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:07,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:07,288 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:07,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:07,361 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:07,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:07,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682788124] [2021-03-11 14:42:07,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:07,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:07,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176710031] [2021-03-11 14:42:07,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:07,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:07,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:07,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:07,435 INFO L87 Difference]: Start difference. First operand 1579 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:07,749 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:07,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:07,780 INFO L93 Difference]: Finished difference Result 2967 states and 11752 transitions. [2021-03-11 14:42:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:07,783 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:07,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:07,789 INFO L225 Difference]: With dead ends: 2967 [2021-03-11 14:42:07,789 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:42:07,790 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 500.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:42:07,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1573. [2021-03-11 14:42:07,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.46882951653944) internal successors, (7025), 1572 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7025 transitions. [2021-03-11 14:42:07,838 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7025 transitions. Word has length 28 [2021-03-11 14:42:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:07,838 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7025 transitions. [2021-03-11 14:42:07,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:07,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7025 transitions. [2021-03-11 14:42:07,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:07,840 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:07,840 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:07,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable689 [2021-03-11 14:42:07,840 INFO L428 AbstractCegarLoop]: === Iteration 691 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:07,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:07,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1058065922, now seen corresponding path program 683 times [2021-03-11 14:42:07,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:07,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528850976] [2021-03-11 14:42:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:07,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:07,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:07,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:07,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:07,868 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:07,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:07,892 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:07,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:07,923 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:07,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:07,963 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:07,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:08,011 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:42:08,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:42:08,070 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:08,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:08,139 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:08,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:08,222 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:08,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:08,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528850976] [2021-03-11 14:42:08,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:08,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:08,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381237911] [2021-03-11 14:42:08,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:08,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:08,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:08,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:08,295 INFO L87 Difference]: Start difference. First operand 1573 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:08,586 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:08,611 INFO L93 Difference]: Finished difference Result 2971 states and 11761 transitions. [2021-03-11 14:42:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:08,613 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:08,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:08,620 INFO L225 Difference]: With dead ends: 2971 [2021-03-11 14:42:08,620 INFO L226 Difference]: Without dead ends: 2953 [2021-03-11 14:42:08,620 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 539.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-03-11 14:42:08,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1580. [2021-03-11 14:42:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.457251424952502) internal successors, (7038), 1579 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7038 transitions. [2021-03-11 14:42:08,669 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7038 transitions. Word has length 28 [2021-03-11 14:42:08,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:08,669 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7038 transitions. [2021-03-11 14:42:08,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7038 transitions. [2021-03-11 14:42:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:08,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:08,671 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:08,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690 [2021-03-11 14:42:08,671 INFO L428 AbstractCegarLoop]: === Iteration 692 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:08,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1629520728, now seen corresponding path program 684 times [2021-03-11 14:42:08,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:08,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526103275] [2021-03-11 14:42:08,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:08,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:08,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:08,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:08,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:08,695 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:08,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:08,716 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:08,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:08,746 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:08,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:08,783 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:08,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:08,831 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:42:08,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:42:08,892 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:08,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:08,964 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:08,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:09,046 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:09,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:09,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526103275] [2021-03-11 14:42:09,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:09,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:09,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887612259] [2021-03-11 14:42:09,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:09,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:09,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:09,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:09,120 INFO L87 Difference]: Start difference. First operand 1580 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:09,425 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:09,456 INFO L93 Difference]: Finished difference Result 2970 states and 11752 transitions. [2021-03-11 14:42:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:09,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:09,465 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:42:09,466 INFO L226 Difference]: Without dead ends: 2940 [2021-03-11 14:42:09,466 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 532.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:09,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-03-11 14:42:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1567. [2021-03-11 14:42:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.4763729246487864) internal successors, (7010), 1566 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7010 transitions. [2021-03-11 14:42:09,515 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7010 transitions. Word has length 28 [2021-03-11 14:42:09,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:09,515 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7010 transitions. [2021-03-11 14:42:09,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:09,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7010 transitions. [2021-03-11 14:42:09,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:09,517 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:09,517 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:09,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691 [2021-03-11 14:42:09,517 INFO L428 AbstractCegarLoop]: === Iteration 693 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:09,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:09,518 INFO L82 PathProgramCache]: Analyzing trace with hash -907646424, now seen corresponding path program 685 times [2021-03-11 14:42:09,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:09,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178335405] [2021-03-11 14:42:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:09,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:09,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:09,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:09,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:09,542 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:09,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:09,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:09,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:09,601 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:09,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:09,651 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:09,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:09,710 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:09,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:09,783 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:09,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:09,867 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:09,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:09,970 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:09,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:10,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178335405] [2021-03-11 14:42:10,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:10,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:10,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361576843] [2021-03-11 14:42:10,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:10,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:10,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:10,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:10,048 INFO L87 Difference]: Start difference. First operand 1567 states and 7010 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:10,344 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:10,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:10,370 INFO L93 Difference]: Finished difference Result 2950 states and 11715 transitions. [2021-03-11 14:42:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:10,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:10,378 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:42:10,379 INFO L226 Difference]: Without dead ends: 2934 [2021-03-11 14:42:10,379 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 608.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:10,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2021-03-11 14:42:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1575. [2021-03-11 14:42:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.467598475222363) internal successors, (7032), 1574 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7032 transitions. [2021-03-11 14:42:10,431 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7032 transitions. Word has length 28 [2021-03-11 14:42:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:10,431 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7032 transitions. [2021-03-11 14:42:10,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7032 transitions. [2021-03-11 14:42:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:10,433 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:10,433 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:10,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable692 [2021-03-11 14:42:10,433 INFO L428 AbstractCegarLoop]: === Iteration 694 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:10,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:10,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1479101230, now seen corresponding path program 686 times [2021-03-11 14:42:10,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:10,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816676637] [2021-03-11 14:42:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:10,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:10,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:10,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:10,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:10,459 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:10,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:10,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:10,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:10,518 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:10,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:10,560 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:10,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:10,604 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:10,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:10,656 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:10,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:10,720 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:10,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:10,802 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:10,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:10,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816676637] [2021-03-11 14:42:10,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:10,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:10,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423974511] [2021-03-11 14:42:10,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:10,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:10,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:10,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:10,879 INFO L87 Difference]: Start difference. First operand 1575 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:11,216 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:11,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:11,246 INFO L93 Difference]: Finished difference Result 2948 states and 11707 transitions. [2021-03-11 14:42:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:11,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:11,255 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:42:11,255 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:42:11,255 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 538.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:11,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:42:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1571. [2021-03-11 14:42:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.471974522292993) internal successors, (7021), 1570 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:11,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7021 transitions. [2021-03-11 14:42:11,304 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7021 transitions. Word has length 28 [2021-03-11 14:42:11,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:11,304 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7021 transitions. [2021-03-11 14:42:11,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:11,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7021 transitions. [2021-03-11 14:42:11,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:11,306 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:11,306 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:11,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable693 [2021-03-11 14:42:11,306 INFO L428 AbstractCegarLoop]: === Iteration 695 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1980731804, now seen corresponding path program 687 times [2021-03-11 14:42:11,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:11,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273337197] [2021-03-11 14:42:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:11,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:11,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:11,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:11,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:11,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:11,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:11,354 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:11,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:11,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:11,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:11,426 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:11,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:11,476 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:11,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:11,534 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:11,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:11,609 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:11,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:11,697 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:11,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:11,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273337197] [2021-03-11 14:42:11,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:11,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:11,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862144871] [2021-03-11 14:42:11,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:11,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:11,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:11,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:11,778 INFO L87 Difference]: Start difference. First operand 1571 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:12,128 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:12,156 INFO L93 Difference]: Finished difference Result 2955 states and 11723 transitions. [2021-03-11 14:42:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:12,158 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:12,165 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:42:12,165 INFO L226 Difference]: Without dead ends: 2939 [2021-03-11 14:42:12,165 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 560.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-03-11 14:42:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1577. [2021-03-11 14:42:12,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.461928934010152) internal successors, (7032), 1576 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:12,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7032 transitions. [2021-03-11 14:42:12,213 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7032 transitions. Word has length 28 [2021-03-11 14:42:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:12,213 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7032 transitions. [2021-03-11 14:42:12,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:12,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7032 transitions. [2021-03-11 14:42:12,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:12,215 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:12,215 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:12,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable694 [2021-03-11 14:42:12,216 INFO L428 AbstractCegarLoop]: === Iteration 696 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:12,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:12,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1062781614, now seen corresponding path program 688 times [2021-03-11 14:42:12,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:12,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036505467] [2021-03-11 14:42:12,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:12,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:12,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:12,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:12,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:12,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:12,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:12,260 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:12,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:12,291 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:12,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:12,330 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:12,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:12,377 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:12,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:12,433 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:12,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:12,506 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:12,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:12,594 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:12,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:12,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036505467] [2021-03-11 14:42:12,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:12,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:12,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833753732] [2021-03-11 14:42:12,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:12,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:12,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:12,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:12,674 INFO L87 Difference]: Start difference. First operand 1577 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:13,061 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:13,097 INFO L93 Difference]: Finished difference Result 2956 states and 11719 transitions. [2021-03-11 14:42:13,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:13,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:13,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:13,107 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:42:13,107 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:42:13,107 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 548.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:13,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:42:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1571. [2021-03-11 14:42:13,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.469426751592357) internal successors, (7017), 1570 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:13,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7017 transitions. [2021-03-11 14:42:13,157 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7017 transitions. Word has length 28 [2021-03-11 14:42:13,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:13,157 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7017 transitions. [2021-03-11 14:42:13,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7017 transitions. [2021-03-11 14:42:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:13,160 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:13,160 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:13,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable695 [2021-03-11 14:42:13,160 INFO L428 AbstractCegarLoop]: === Iteration 697 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:13,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1207550884, now seen corresponding path program 689 times [2021-03-11 14:42:13,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:13,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129084867] [2021-03-11 14:42:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:13,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:13,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:13,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:13,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:13,184 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:13,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:13,205 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:13,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:13,236 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:13,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:13,274 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:13,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:13,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:13,379 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:13,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:13,503 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:13,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:13,587 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:13,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:13,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129084867] [2021-03-11 14:42:13,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:13,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:13,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982567628] [2021-03-11 14:42:13,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:13,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:13,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:13,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:13,660 INFO L87 Difference]: Start difference. First operand 1571 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:13,943 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:13,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:13,967 INFO L93 Difference]: Finished difference Result 2949 states and 11705 transitions. [2021-03-11 14:42:13,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:13,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:13,975 INFO L225 Difference]: With dead ends: 2949 [2021-03-11 14:42:13,975 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:42:13,975 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 582.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:14,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:42:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1575. [2021-03-11 14:42:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.462515883100381) internal successors, (7024), 1574 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7024 transitions. [2021-03-11 14:42:14,024 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7024 transitions. Word has length 28 [2021-03-11 14:42:14,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:14,024 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7024 transitions. [2021-03-11 14:42:14,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7024 transitions. [2021-03-11 14:42:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:14,026 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:14,026 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:14,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable696 [2021-03-11 14:42:14,026 INFO L428 AbstractCegarLoop]: === Iteration 698 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:14,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:14,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1598011416, now seen corresponding path program 690 times [2021-03-11 14:42:14,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:14,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537658794] [2021-03-11 14:42:14,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:14,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:14,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:14,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:14,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:14,051 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:14,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:14,072 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:14,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:14,103 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:14,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:14,142 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:14,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:14,190 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:14,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:14,250 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:14,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:14,365 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:14,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:14,451 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:14,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:14,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537658794] [2021-03-11 14:42:14,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:14,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:14,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274819650] [2021-03-11 14:42:14,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:14,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:14,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:14,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:14,528 INFO L87 Difference]: Start difference. First operand 1575 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:14,833 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:14,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:14,874 INFO L93 Difference]: Finished difference Result 2952 states and 11707 transitions. [2021-03-11 14:42:14,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:14,877 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:14,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:14,885 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:42:14,885 INFO L226 Difference]: Without dead ends: 2927 [2021-03-11 14:42:14,885 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 596.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:14,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2021-03-11 14:42:14,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 1567. [2021-03-11 14:42:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.47381864623244) internal successors, (7006), 1566 states have internal predecessors, (7006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7006 transitions. [2021-03-11 14:42:14,934 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7006 transitions. Word has length 28 [2021-03-11 14:42:14,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:14,934 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7006 transitions. [2021-03-11 14:42:14,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:14,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7006 transitions. [2021-03-11 14:42:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:14,937 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:14,937 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:14,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable697 [2021-03-11 14:42:14,937 INFO L428 AbstractCegarLoop]: === Iteration 699 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:14,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:14,937 INFO L82 PathProgramCache]: Analyzing trace with hash 602764780, now seen corresponding path program 691 times [2021-03-11 14:42:14,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:14,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311803283] [2021-03-11 14:42:14,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:14,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:14,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:14,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:14,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:14,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:14,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:14,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:14,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:15,015 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:15,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:15,054 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:15,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:15,104 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:15,204 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:15,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:15,321 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:15,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:15,404 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:15,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:15,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311803283] [2021-03-11 14:42:15,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:15,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:15,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797757602] [2021-03-11 14:42:15,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:15,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:15,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:15,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:15,473 INFO L87 Difference]: Start difference. First operand 1567 states and 7006 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:15,759 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:15,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:15,786 INFO L93 Difference]: Finished difference Result 2957 states and 11726 transitions. [2021-03-11 14:42:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:15,789 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:15,795 INFO L225 Difference]: With dead ends: 2957 [2021-03-11 14:42:15,795 INFO L226 Difference]: Without dead ends: 2939 [2021-03-11 14:42:15,795 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 635.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-03-11 14:42:15,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1575. [2021-03-11 14:42:15,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.465057179161373) internal successors, (7028), 1574 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:15,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7028 transitions. [2021-03-11 14:42:15,844 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7028 transitions. Word has length 28 [2021-03-11 14:42:15,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:15,844 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7028 transitions. [2021-03-11 14:42:15,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:15,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7028 transitions. [2021-03-11 14:42:15,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:15,846 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:15,846 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:15,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698 [2021-03-11 14:42:15,846 INFO L428 AbstractCegarLoop]: === Iteration 700 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:15,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:15,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1458095022, now seen corresponding path program 692 times [2021-03-11 14:42:15,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:15,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781169534] [2021-03-11 14:42:15,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:15,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:15,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:15,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:15,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:15,872 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:15,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:15,894 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:15,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:15,926 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:15,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:15,968 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:15,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:16,021 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:16,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:16,124 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:16,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:16,247 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:16,250 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:16,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:16,337 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:16,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:16,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781169534] [2021-03-11 14:42:16,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:16,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:16,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971667628] [2021-03-11 14:42:16,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:16,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:16,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:16,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:16,416 INFO L87 Difference]: Start difference. First operand 1575 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:16,685 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:16,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:16,716 INFO L93 Difference]: Finished difference Result 2953 states and 11714 transitions. [2021-03-11 14:42:16,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:16,718 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:16,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:16,725 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:42:16,725 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:42:16,725 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 655.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:42:16,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1571. [2021-03-11 14:42:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.469426751592357) internal successors, (7017), 1570 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7017 transitions. [2021-03-11 14:42:16,774 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7017 transitions. Word has length 28 [2021-03-11 14:42:16,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:16,774 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7017 transitions. [2021-03-11 14:42:16,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:16,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7017 transitions. [2021-03-11 14:42:16,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:16,777 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:16,777 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:16,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable699 [2021-03-11 14:42:16,777 INFO L428 AbstractCegarLoop]: === Iteration 701 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:16,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:16,777 INFO L82 PathProgramCache]: Analyzing trace with hash -470320600, now seen corresponding path program 693 times [2021-03-11 14:42:16,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:16,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099301465] [2021-03-11 14:42:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:16,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:16,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:16,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:16,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:16,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:16,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:16,824 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:16,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:16,854 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:16,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:16,895 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:16,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:16,944 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:16,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:17,047 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:17,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:17,130 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:17,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:17,223 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:17,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:17,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099301465] [2021-03-11 14:42:17,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:17,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:17,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231706743] [2021-03-11 14:42:17,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:17,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:17,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:17,300 INFO L87 Difference]: Start difference. First operand 1571 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:17,622 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:17,646 INFO L93 Difference]: Finished difference Result 2963 states and 11737 transitions. [2021-03-11 14:42:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:17,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:17,655 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:42:17,655 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:42:17,655 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 619.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:42:17,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1578. [2021-03-11 14:42:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.457831325301205) internal successors, (7030), 1577 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7030 transitions. [2021-03-11 14:42:17,703 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7030 transitions. Word has length 28 [2021-03-11 14:42:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:17,703 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7030 transitions. [2021-03-11 14:42:17,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7030 transitions. [2021-03-11 14:42:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:17,706 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:17,706 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:17,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700 [2021-03-11 14:42:17,706 INFO L428 AbstractCegarLoop]: === Iteration 702 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:17,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1041775406, now seen corresponding path program 694 times [2021-03-11 14:42:17,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:17,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858146937] [2021-03-11 14:42:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:17,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:17,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:17,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:17,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:17,739 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:17,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:17,766 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:17,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:17,805 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:17,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:17,846 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:17,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:17,894 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:17,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:17,998 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:17,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:18,070 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:18,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:18,150 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:18,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:18,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858146937] [2021-03-11 14:42:18,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:18,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:18,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893228028] [2021-03-11 14:42:18,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:18,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:18,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:18,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:18,226 INFO L87 Difference]: Start difference. First operand 1578 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:18,500 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:18,534 INFO L93 Difference]: Finished difference Result 2962 states and 11728 transitions. [2021-03-11 14:42:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:18,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:18,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:18,543 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:42:18,543 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:42:18,543 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 602.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:18,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:42:18,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1571. [2021-03-11 14:42:18,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.466878980891719) internal successors, (7013), 1570 states have internal predecessors, (7013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7013 transitions. [2021-03-11 14:42:18,591 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7013 transitions. Word has length 28 [2021-03-11 14:42:18,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:18,593 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7013 transitions. [2021-03-11 14:42:18,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:18,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7013 transitions. [2021-03-11 14:42:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:18,596 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:18,596 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:18,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable701 [2021-03-11 14:42:18,596 INFO L428 AbstractCegarLoop]: === Iteration 703 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:18,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:18,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1993324824, now seen corresponding path program 695 times [2021-03-11 14:42:18,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:18,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523336668] [2021-03-11 14:42:18,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:18,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:18,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:18,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:18,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:18,621 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:18,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:18,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:18,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:18,674 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:18,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:18,714 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:18,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:18,762 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:18,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:18,871 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:18,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:18,984 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:18,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:19,068 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:19,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:19,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523336668] [2021-03-11 14:42:19,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:19,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:19,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280021566] [2021-03-11 14:42:19,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:19,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:19,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:19,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:19,142 INFO L87 Difference]: Start difference. First operand 1571 states and 7013 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:19,430 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:19,456 INFO L93 Difference]: Finished difference Result 2952 states and 11708 transitions. [2021-03-11 14:42:19,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:19,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:19,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:19,466 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:42:19,466 INFO L226 Difference]: Without dead ends: 2938 [2021-03-11 14:42:19,466 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 636.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:19,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-03-11 14:42:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1575. [2021-03-11 14:42:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.45997458703939) internal successors, (7020), 1574 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7020 transitions. [2021-03-11 14:42:19,514 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7020 transitions. Word has length 28 [2021-03-11 14:42:19,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:19,514 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7020 transitions. [2021-03-11 14:42:19,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7020 transitions. [2021-03-11 14:42:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:19,516 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:19,516 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:19,517 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702 [2021-03-11 14:42:19,517 INFO L428 AbstractCegarLoop]: === Iteration 704 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:19,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:19,517 INFO L82 PathProgramCache]: Analyzing trace with hash -503919828, now seen corresponding path program 696 times [2021-03-11 14:42:19,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:19,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897038320] [2021-03-11 14:42:19,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:19,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:19,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:19,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:19,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:19,544 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:19,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:19,567 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:19,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:19,604 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:19,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:19,647 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 14:42:19,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 14:42:19,698 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:19,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:19,802 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:19,920 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:19,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:20,005 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:20,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:20,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897038320] [2021-03-11 14:42:20,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:20,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:20,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076806179] [2021-03-11 14:42:20,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:20,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:20,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:20,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:20,081 INFO L87 Difference]: Start difference. First operand 1575 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:20,395 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:20,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:20,437 INFO L93 Difference]: Finished difference Result 2955 states and 11710 transitions. [2021-03-11 14:42:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:20,447 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:42:20,447 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:42:20,447 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 655.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:20,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:42:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1563. [2021-03-11 14:42:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.478233034571063) internal successors, (6995), 1562 states have internal predecessors, (6995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 6995 transitions. [2021-03-11 14:42:20,495 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 6995 transitions. Word has length 28 [2021-03-11 14:42:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:20,495 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 6995 transitions. [2021-03-11 14:42:20,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 6995 transitions. [2021-03-11 14:42:20,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:20,498 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:20,498 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:20,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703 [2021-03-11 14:42:20,498 INFO L428 AbstractCegarLoop]: === Iteration 705 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:20,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:20,498 INFO L82 PathProgramCache]: Analyzing trace with hash 647992356, now seen corresponding path program 697 times [2021-03-11 14:42:20,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:20,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315991489] [2021-03-11 14:42:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:20,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:20,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:20,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:20,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:20,546 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:20,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:20,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:20,621 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:20,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:20,704 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:20,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:20,807 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:42:20,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:42:20,882 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:20,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:20,969 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:20,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:21,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315991489] [2021-03-11 14:42:21,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:21,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:21,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646002755] [2021-03-11 14:42:21,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:21,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:21,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:21,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:21,054 INFO L87 Difference]: Start difference. First operand 1563 states and 6995 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:21,389 INFO L93 Difference]: Finished difference Result 3001 states and 11831 transitions. [2021-03-11 14:42:21,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:21,392 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:21,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:21,398 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:42:21,398 INFO L226 Difference]: Without dead ends: 2981 [2021-03-11 14:42:21,398 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 589.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-03-11 14:42:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1586. [2021-03-11 14:42:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.454258675078864) internal successors, (7060), 1585 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7060 transitions. [2021-03-11 14:42:21,448 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7060 transitions. Word has length 28 [2021-03-11 14:42:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:21,448 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7060 transitions. [2021-03-11 14:42:21,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7060 transitions. [2021-03-11 14:42:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:21,450 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:21,451 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:21,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable704 [2021-03-11 14:42:21,451 INFO L428 AbstractCegarLoop]: === Iteration 706 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:21,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:21,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1392694854, now seen corresponding path program 698 times [2021-03-11 14:42:21,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:21,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649118209] [2021-03-11 14:42:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:21,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:21,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:21,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:21,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:21,484 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:21,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:21,514 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:21,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:21,550 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:21,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:21,592 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:21,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:21,676 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:21,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:21,778 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:42:21,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:42:21,855 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:21,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:21,940 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:21,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:22,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649118209] [2021-03-11 14:42:22,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:22,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:22,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877574441] [2021-03-11 14:42:22,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:22,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:22,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:22,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:22,016 INFO L87 Difference]: Start difference. First operand 1586 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:22,274 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:22,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:22,304 INFO L93 Difference]: Finished difference Result 2999 states and 11819 transitions. [2021-03-11 14:42:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:22,313 INFO L225 Difference]: With dead ends: 2999 [2021-03-11 14:42:22,314 INFO L226 Difference]: Without dead ends: 2971 [2021-03-11 14:42:22,314 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 648.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-03-11 14:42:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1576. [2021-03-11 14:42:22,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.467936507936508) internal successors, (7037), 1575 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:22,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7037 transitions. [2021-03-11 14:42:22,363 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7037 transitions. Word has length 28 [2021-03-11 14:42:22,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:22,363 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7037 transitions. [2021-03-11 14:42:22,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7037 transitions. [2021-03-11 14:42:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:22,365 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:22,365 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:22,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable705 [2021-03-11 14:42:22,365 INFO L428 AbstractCegarLoop]: === Iteration 707 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:22,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1185847934, now seen corresponding path program 699 times [2021-03-11 14:42:22,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:22,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841035119] [2021-03-11 14:42:22,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:22,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:22,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:22,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:22,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:22,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:22,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:22,412 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:22,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:22,446 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:22,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:22,487 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:22,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:22,572 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:22,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:22,681 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:22,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:22,794 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:22,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:22,890 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:22,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:22,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841035119] [2021-03-11 14:42:22,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:22,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:22,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645635583] [2021-03-11 14:42:22,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:22,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:22,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:22,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:22,969 INFO L87 Difference]: Start difference. First operand 1576 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:23,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:23,239 INFO L93 Difference]: Finished difference Result 2992 states and 11804 transitions. [2021-03-11 14:42:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:23,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:23,250 INFO L225 Difference]: With dead ends: 2992 [2021-03-11 14:42:23,250 INFO L226 Difference]: Without dead ends: 2972 [2021-03-11 14:42:23,250 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 637.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-03-11 14:42:23,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 1581. [2021-03-11 14:42:23,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.458860759493671) internal successors, (7045), 1580 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7045 transitions. [2021-03-11 14:42:23,300 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7045 transitions. Word has length 28 [2021-03-11 14:42:23,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:23,300 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7045 transitions. [2021-03-11 14:42:23,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7045 transitions. [2021-03-11 14:42:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:23,302 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:23,302 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:23,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable706 [2021-03-11 14:42:23,303 INFO L428 AbstractCegarLoop]: === Iteration 708 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:23,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:23,303 INFO L82 PathProgramCache]: Analyzing trace with hash -130309370, now seen corresponding path program 700 times [2021-03-11 14:42:23,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:23,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636339781] [2021-03-11 14:42:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:23,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:23,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:23,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:23,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:23,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:23,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:23,356 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:23,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:23,390 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:23,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:23,431 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:23,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:23,512 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:23,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:23,614 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:23,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:23,724 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:23,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:23,811 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:23,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:23,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636339781] [2021-03-11 14:42:23,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:23,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:23,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523797900] [2021-03-11 14:42:23,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:23,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:23,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:23,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:23,892 INFO L87 Difference]: Start difference. First operand 1581 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:24,314 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:24,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:24,352 INFO L93 Difference]: Finished difference Result 2986 states and 11788 transitions. [2021-03-11 14:42:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:24,355 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:24,362 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:42:24,362 INFO L226 Difference]: Without dead ends: 2967 [2021-03-11 14:42:24,362 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 685.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:24,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2021-03-11 14:42:24,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 1576. [2021-03-11 14:42:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.464761904761905) internal successors, (7032), 1575 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7032 transitions. [2021-03-11 14:42:24,412 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7032 transitions. Word has length 28 [2021-03-11 14:42:24,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:24,412 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7032 transitions. [2021-03-11 14:42:24,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:24,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7032 transitions. [2021-03-11 14:42:24,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:24,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:24,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:24,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable707 [2021-03-11 14:42:24,415 INFO L428 AbstractCegarLoop]: === Iteration 709 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:24,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:24,415 INFO L82 PathProgramCache]: Analyzing trace with hash -753475906, now seen corresponding path program 701 times [2021-03-11 14:42:24,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:24,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42448103] [2021-03-11 14:42:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:24,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:24,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:24,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:24,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:24,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:24,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:24,466 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:24,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:24,500 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:24,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:24,544 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:24,630 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:24,736 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:24,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:24,864 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:24,866 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:24,961 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:24,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:25,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42448103] [2021-03-11 14:42:25,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:25,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:25,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186808168] [2021-03-11 14:42:25,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:25,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:25,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:25,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:25,049 INFO L87 Difference]: Start difference. First operand 1576 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:25,368 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:25,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:25,397 INFO L93 Difference]: Finished difference Result 2987 states and 11791 transitions. [2021-03-11 14:42:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:25,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:25,406 INFO L225 Difference]: With dead ends: 2987 [2021-03-11 14:42:25,406 INFO L226 Difference]: Without dead ends: 2969 [2021-03-11 14:42:25,406 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 728.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:25,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-03-11 14:42:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1580. [2021-03-11 14:42:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.457884737175427) internal successors, (7039), 1579 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7039 transitions. [2021-03-11 14:42:25,453 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7039 transitions. Word has length 28 [2021-03-11 14:42:25,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:25,453 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7039 transitions. [2021-03-11 14:42:25,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:25,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7039 transitions. [2021-03-11 14:42:25,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:25,456 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:25,456 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:25,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable708 [2021-03-11 14:42:25,456 INFO L428 AbstractCegarLoop]: === Iteration 710 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:25,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:25,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1480631588, now seen corresponding path program 702 times [2021-03-11 14:42:25,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:25,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175891770] [2021-03-11 14:42:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:25,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:25,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:25,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:25,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:25,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:25,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:25,497 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:25,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:25,525 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:25,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:25,559 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:25,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:25,632 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:25,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:25,737 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:25,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:25,862 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:25,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:25,951 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:25,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:26,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175891770] [2021-03-11 14:42:26,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:26,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:26,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926386243] [2021-03-11 14:42:26,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:26,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:26,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:26,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:26,033 INFO L87 Difference]: Start difference. First operand 1580 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:26,353 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:26,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:26,394 INFO L93 Difference]: Finished difference Result 2983 states and 11779 transitions. [2021-03-11 14:42:26,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:26,397 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:26,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:26,405 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:42:26,405 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:42:26,405 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 677.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:26,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:42:26,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1570. [2021-03-11 14:42:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.472275334608031) internal successors, (7017), 1569 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:26,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7017 transitions. [2021-03-11 14:42:26,454 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7017 transitions. Word has length 28 [2021-03-11 14:42:26,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:26,454 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7017 transitions. [2021-03-11 14:42:26,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:26,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7017 transitions. [2021-03-11 14:42:26,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:26,457 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:26,457 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:26,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable709 [2021-03-11 14:42:26,457 INFO L428 AbstractCegarLoop]: === Iteration 711 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:26,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:26,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1742083944, now seen corresponding path program 703 times [2021-03-11 14:42:26,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:26,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132129381] [2021-03-11 14:42:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:26,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:26,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:26,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:26,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:26,484 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:26,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:26,509 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:26,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:26,542 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:26,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:26,584 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:26,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:26,668 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:42:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:42:26,733 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:42:26,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:42:26,811 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:26,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:26,901 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:26,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:26,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132129381] [2021-03-11 14:42:26,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:26,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:26,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987599048] [2021-03-11 14:42:26,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:26,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:26,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:26,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:26,981 INFO L87 Difference]: Start difference. First operand 1570 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:27,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:27,333 INFO L93 Difference]: Finished difference Result 3014 states and 11862 transitions. [2021-03-11 14:42:27,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:27,335 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:27,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:27,342 INFO L225 Difference]: With dead ends: 3014 [2021-03-11 14:42:27,342 INFO L226 Difference]: Without dead ends: 2994 [2021-03-11 14:42:27,343 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 560.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2021-03-11 14:42:27,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1590. [2021-03-11 14:42:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.44745122718691) internal successors, (7067), 1589 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:27,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7067 transitions. [2021-03-11 14:42:27,393 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7067 transitions. Word has length 28 [2021-03-11 14:42:27,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:27,393 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7067 transitions. [2021-03-11 14:42:27,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:27,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7067 transitions. [2021-03-11 14:42:27,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:27,395 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:27,396 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:27,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable710 [2021-03-11 14:42:27,396 INFO L428 AbstractCegarLoop]: === Iteration 712 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:27,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:27,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1808180854, now seen corresponding path program 704 times [2021-03-11 14:42:27,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:27,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853814297] [2021-03-11 14:42:27,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:27,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:27,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:27,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:27,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:27,423 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:27,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:27,445 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:27,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:27,478 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:27,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:27,522 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:27,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:27,605 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:42:27,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:42:27,670 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:42:27,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:42:27,747 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:27,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:27,834 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:27,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:27,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853814297] [2021-03-11 14:42:27,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:27,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:27,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142508527] [2021-03-11 14:42:27,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:27,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:27,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:27,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:27,911 INFO L87 Difference]: Start difference. First operand 1590 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:28,265 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:28,298 INFO L93 Difference]: Finished difference Result 3012 states and 11850 transitions. [2021-03-11 14:42:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:28,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:28,308 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:42:28,308 INFO L226 Difference]: Without dead ends: 2984 [2021-03-11 14:42:28,308 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 615.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2021-03-11 14:42:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1580. [2021-03-11 14:42:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.459151361621279) internal successors, (7041), 1579 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7041 transitions. [2021-03-11 14:42:28,356 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7041 transitions. Word has length 28 [2021-03-11 14:42:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:28,356 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7041 transitions. [2021-03-11 14:42:28,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7041 transitions. [2021-03-11 14:42:28,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:28,359 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:28,359 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:28,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable711 [2021-03-11 14:42:28,359 INFO L428 AbstractCegarLoop]: === Iteration 713 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:28,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1206854142, now seen corresponding path program 705 times [2021-03-11 14:42:28,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:28,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82113865] [2021-03-11 14:42:28,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:28,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:28,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:28,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:28,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:28,385 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:28,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:28,408 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:28,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:28,442 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:28,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:28,486 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:28,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:28,575 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:42:28,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:42:28,642 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:28,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:28,718 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:28,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:28,809 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:28,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:28,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82113865] [2021-03-11 14:42:28,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:28,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:28,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394658949] [2021-03-11 14:42:28,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:28,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:28,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:28,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:28,886 INFO L87 Difference]: Start difference. First operand 1580 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:29,159 INFO L93 Difference]: Finished difference Result 3011 states and 11847 transitions. [2021-03-11 14:42:29,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:29,162 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:29,169 INFO L225 Difference]: With dead ends: 3011 [2021-03-11 14:42:29,169 INFO L226 Difference]: Without dead ends: 2991 [2021-03-11 14:42:29,169 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 563.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-03-11 14:42:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1588. [2021-03-11 14:42:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.445494643982356) internal successors, (7055), 1587 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7055 transitions. [2021-03-11 14:42:29,221 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7055 transitions. Word has length 28 [2021-03-11 14:42:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:29,221 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7055 transitions. [2021-03-11 14:42:29,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7055 transitions. [2021-03-11 14:42:29,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:29,223 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:29,223 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:29,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable712 [2021-03-11 14:42:29,224 INFO L428 AbstractCegarLoop]: === Iteration 714 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:29,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1380101834, now seen corresponding path program 706 times [2021-03-11 14:42:29,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:29,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705887155] [2021-03-11 14:42:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:29,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:29,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:29,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:29,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:29,252 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:29,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:29,276 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:29,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:29,310 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:29,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:29,351 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:29,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:29,433 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:42:29,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:42:29,497 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:29,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:29,572 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:29,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:29,658 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:29,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:29,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:29,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705887155] [2021-03-11 14:42:29,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:29,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:29,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188269823] [2021-03-11 14:42:29,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:29,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:29,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:29,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:29,737 INFO L87 Difference]: Start difference. First operand 1588 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:30,138 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:30,176 INFO L93 Difference]: Finished difference Result 3008 states and 11834 transitions. [2021-03-11 14:42:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:30,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:30,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:30,186 INFO L225 Difference]: With dead ends: 3008 [2021-03-11 14:42:30,186 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:42:30,186 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 614.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:30,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:42:30,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1580. [2021-03-11 14:42:30,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.454084863837872) internal successors, (7033), 1579 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7033 transitions. [2021-03-11 14:42:30,235 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7033 transitions. Word has length 28 [2021-03-11 14:42:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:30,236 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7033 transitions. [2021-03-11 14:42:30,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7033 transitions. [2021-03-11 14:42:30,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:30,238 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:30,238 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:30,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable713 [2021-03-11 14:42:30,238 INFO L428 AbstractCegarLoop]: === Iteration 715 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:30,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:30,239 INFO L82 PathProgramCache]: Analyzing trace with hash -732469698, now seen corresponding path program 707 times [2021-03-11 14:42:30,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:30,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984183433] [2021-03-11 14:42:30,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:30,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:30,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:30,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:30,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:30,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:30,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:30,292 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:30,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:30,326 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:30,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:30,373 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:30,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:30,458 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:42:30,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:42:30,529 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:30,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:30,606 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:30,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:30,693 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:30,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:30,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984183433] [2021-03-11 14:42:30,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:30,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:30,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108111304] [2021-03-11 14:42:30,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:30,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:30,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:30,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:30,770 INFO L87 Difference]: Start difference. First operand 1580 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:31,123 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:31,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:31,153 INFO L93 Difference]: Finished difference Result 3006 states and 11831 transitions. [2021-03-11 14:42:31,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:31,157 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:31,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:31,164 INFO L225 Difference]: With dead ends: 3006 [2021-03-11 14:42:31,164 INFO L226 Difference]: Without dead ends: 2988 [2021-03-11 14:42:31,164 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 646.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:31,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-03-11 14:42:31,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1587. [2021-03-11 14:42:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.442622950819672) internal successors, (7046), 1586 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7046 transitions. [2021-03-11 14:42:31,214 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7046 transitions. Word has length 28 [2021-03-11 14:42:31,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:31,215 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7046 transitions. [2021-03-11 14:42:31,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:31,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7046 transitions. [2021-03-11 14:42:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:31,217 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:31,217 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:31,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable714 [2021-03-11 14:42:31,217 INFO L428 AbstractCegarLoop]: === Iteration 716 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:31,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:31,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1303924504, now seen corresponding path program 708 times [2021-03-11 14:42:31,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:31,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673178803] [2021-03-11 14:42:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:31,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:31,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:31,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:31,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:31,246 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:31,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:31,271 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:31,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:31,307 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:31,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:31,353 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:31,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:31,445 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:42:31,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:42:31,515 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:31,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:31,595 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:31,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:31,688 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:31,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:31,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673178803] [2021-03-11 14:42:31,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:31,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:31,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678501912] [2021-03-11 14:42:31,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:31,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:31,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:31,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:31,775 INFO L87 Difference]: Start difference. First operand 1587 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:32,071 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:32,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:32,107 INFO L93 Difference]: Finished difference Result 3005 states and 11822 transitions. [2021-03-11 14:42:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:32,111 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:32,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:32,117 INFO L225 Difference]: With dead ends: 3005 [2021-03-11 14:42:32,117 INFO L226 Difference]: Without dead ends: 2971 [2021-03-11 14:42:32,117 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 648.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:32,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-03-11 14:42:32,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1570. [2021-03-11 14:42:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.467813894200128) internal successors, (7010), 1569 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7010 transitions. [2021-03-11 14:42:32,168 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7010 transitions. Word has length 28 [2021-03-11 14:42:32,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:32,168 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7010 transitions. [2021-03-11 14:42:32,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7010 transitions. [2021-03-11 14:42:32,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:32,171 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:32,171 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:32,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable715 [2021-03-11 14:42:32,171 INFO L428 AbstractCegarLoop]: === Iteration 717 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:32,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1773593256, now seen corresponding path program 709 times [2021-03-11 14:42:32,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:32,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947983152] [2021-03-11 14:42:32,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:32,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:32,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:32,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:32,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:32,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:32,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:32,223 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:32,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:32,258 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:32,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:32,302 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:32,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:32,389 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:32,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:32,498 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:32,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:32,612 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:32,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:32,707 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:32,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:32,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947983152] [2021-03-11 14:42:32,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:32,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:32,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175459419] [2021-03-11 14:42:32,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:32,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:32,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:32,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:32,787 INFO L87 Difference]: Start difference. First operand 1570 states and 7010 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:33,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:33,080 INFO L93 Difference]: Finished difference Result 2988 states and 11789 transitions. [2021-03-11 14:42:33,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:33,083 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:33,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:33,091 INFO L225 Difference]: With dead ends: 2988 [2021-03-11 14:42:33,091 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:42:33,091 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 652.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:42:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1580. [2021-03-11 14:42:33,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.455984800506649) internal successors, (7036), 1579 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:33,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7036 transitions. [2021-03-11 14:42:33,140 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7036 transitions. Word has length 28 [2021-03-11 14:42:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:33,140 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7036 transitions. [2021-03-11 14:42:33,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7036 transitions. [2021-03-11 14:42:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:33,142 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:33,142 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:33,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable716 [2021-03-11 14:42:33,142 INFO L428 AbstractCegarLoop]: === Iteration 718 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:33,143 INFO L82 PathProgramCache]: Analyzing trace with hash 457435952, now seen corresponding path program 710 times [2021-03-11 14:42:33,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:33,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001853968] [2021-03-11 14:42:33,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:33,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:33,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:33,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:33,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:33,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:33,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:33,193 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:33,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:33,227 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:33,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:33,270 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:33,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:33,358 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:33,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:33,468 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:33,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:33,579 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:33,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:33,666 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:33,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:33,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001853968] [2021-03-11 14:42:33,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:33,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:33,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694664037] [2021-03-11 14:42:33,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:33,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:33,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:33,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:33,748 INFO L87 Difference]: Start difference. First operand 1580 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:34,077 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:34,108 INFO L93 Difference]: Finished difference Result 2982 states and 11773 transitions. [2021-03-11 14:42:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:34,110 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:34,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:34,115 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:42:34,116 INFO L226 Difference]: Without dead ends: 2963 [2021-03-11 14:42:34,116 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 696.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2021-03-11 14:42:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1575. [2021-03-11 14:42:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.461880559085134) internal successors, (7023), 1574 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7023 transitions. [2021-03-11 14:42:34,164 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7023 transitions. Word has length 28 [2021-03-11 14:42:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:34,164 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7023 transitions. [2021-03-11 14:42:34,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:34,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7023 transitions. [2021-03-11 14:42:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:34,166 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:34,166 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:34,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable717 [2021-03-11 14:42:34,167 INFO L428 AbstractCegarLoop]: === Iteration 719 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:34,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:34,167 INFO L82 PathProgramCache]: Analyzing trace with hash 700507876, now seen corresponding path program 711 times [2021-03-11 14:42:34,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:34,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008690680] [2021-03-11 14:42:34,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:34,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:34,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:34,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:34,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:34,192 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:34,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:34,214 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:34,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:34,245 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:34,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:34,284 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:34,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:34,366 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:34,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:34,470 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:34,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:34,549 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:34,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:34,648 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:34,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:34,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008690680] [2021-03-11 14:42:34,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:34,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:34,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015283272] [2021-03-11 14:42:34,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:34,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:34,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:34,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:34,735 INFO L87 Difference]: Start difference. First operand 1575 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:35,028 INFO L93 Difference]: Finished difference Result 2994 states and 11799 transitions. [2021-03-11 14:42:35,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:35,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:35,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:35,037 INFO L225 Difference]: With dead ends: 2994 [2021-03-11 14:42:35,037 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:42:35,037 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 607.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:35,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:42:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1583. [2021-03-11 14:42:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.448166877370417) internal successors, (7037), 1582 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:35,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7037 transitions. [2021-03-11 14:42:35,086 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7037 transitions. Word has length 28 [2021-03-11 14:42:35,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:35,086 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7037 transitions. [2021-03-11 14:42:35,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:35,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7037 transitions. [2021-03-11 14:42:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:35,089 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:35,089 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:35,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable718 [2021-03-11 14:42:35,089 INFO L428 AbstractCegarLoop]: === Iteration 720 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:35,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:35,089 INFO L82 PathProgramCache]: Analyzing trace with hash 873755568, now seen corresponding path program 712 times [2021-03-11 14:42:35,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:35,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255052927] [2021-03-11 14:42:35,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:35,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:35,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:35,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:35,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:35,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:35,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:35,140 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:35,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:35,174 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:35,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:35,217 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:35,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:35,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:35,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:35,414 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:35,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:35,496 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:35,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:35,586 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:35,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:35,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:35,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255052927] [2021-03-11 14:42:35,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:35,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:35,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70100276] [2021-03-11 14:42:35,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:35,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:35,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:35,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:35,669 INFO L87 Difference]: Start difference. First operand 1583 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:36,059 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:36,095 INFO L93 Difference]: Finished difference Result 2991 states and 11786 transitions. [2021-03-11 14:42:36,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:36,098 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:36,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:36,104 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:42:36,104 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:42:36,104 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 675.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:36,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:42:36,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1575. [2021-03-11 14:42:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.4587039390088945) internal successors, (7018), 1574 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:36,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7018 transitions. [2021-03-11 14:42:36,153 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7018 transitions. Word has length 28 [2021-03-11 14:42:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:36,153 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7018 transitions. [2021-03-11 14:42:36,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7018 transitions. [2021-03-11 14:42:36,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:36,155 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:36,155 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:36,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable719 [2021-03-11 14:42:36,156 INFO L428 AbstractCegarLoop]: === Iteration 721 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:36,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:36,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1533147108, now seen corresponding path program 713 times [2021-03-11 14:42:36,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:36,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848085800] [2021-03-11 14:42:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:36,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:36,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:36,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:36,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:36,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:36,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:36,203 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:36,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:36,235 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:36,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:36,277 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:36,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:36,355 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:36,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:36,462 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:36,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:36,588 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:36,591 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:36,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:36,679 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:36,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:36,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:36,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848085800] [2021-03-11 14:42:36,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:36,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:36,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306791902] [2021-03-11 14:42:36,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:36,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:36,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:36,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:36,764 INFO L87 Difference]: Start difference. First operand 1575 states and 7018 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:37,155 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:37,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:37,186 INFO L93 Difference]: Finished difference Result 2978 states and 11761 transitions. [2021-03-11 14:42:37,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:37,189 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:37,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:37,196 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:42:37,196 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:42:37,196 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 706.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:37,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:42:37,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1579. [2021-03-11 14:42:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.451837769328264) internal successors, (7025), 1578 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7025 transitions. [2021-03-11 14:42:37,244 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7025 transitions. Word has length 28 [2021-03-11 14:42:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:37,244 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7025 transitions. [2021-03-11 14:42:37,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:37,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7025 transitions. [2021-03-11 14:42:37,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:37,246 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:37,246 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:37,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable720 [2021-03-11 14:42:37,246 INFO L428 AbstractCegarLoop]: === Iteration 722 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:37,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:37,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1272415192, now seen corresponding path program 714 times [2021-03-11 14:42:37,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:37,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580689977] [2021-03-11 14:42:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:37,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:37,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:37,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:37,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:37,270 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:37,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:37,292 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:37,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:37,321 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:37,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:37,361 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:37,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:37,445 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:37,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:37,562 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:37,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:37,689 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:37,692 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:37,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:37,783 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:37,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:37,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580689977] [2021-03-11 14:42:37,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:37,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:37,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260672831] [2021-03-11 14:42:37,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:37,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:37,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:37,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:37,868 INFO L87 Difference]: Start difference. First operand 1579 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:38,268 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:38,310 INFO L93 Difference]: Finished difference Result 2981 states and 11763 transitions. [2021-03-11 14:42:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:38,312 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:38,318 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:42:38,318 INFO L226 Difference]: Without dead ends: 2955 [2021-03-11 14:42:38,319 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 713.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2021-03-11 14:42:38,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1570. [2021-03-11 14:42:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4646271510516256) internal successors, (7005), 1569 states have internal predecessors, (7005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7005 transitions. [2021-03-11 14:42:38,367 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7005 transitions. Word has length 28 [2021-03-11 14:42:38,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:38,367 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7005 transitions. [2021-03-11 14:42:38,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:38,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7005 transitions. [2021-03-11 14:42:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:38,369 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:38,369 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:38,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable721 [2021-03-11 14:42:38,369 INFO L428 AbstractCegarLoop]: === Iteration 723 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:38,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1766168438, now seen corresponding path program 715 times [2021-03-11 14:42:38,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:38,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048610060] [2021-03-11 14:42:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:38,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:38,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:38,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:38,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:38,394 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:38,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:38,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:38,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:38,447 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:38,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:38,488 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:38,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:38,570 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:38,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:38,683 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:38,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:38,809 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:38,811 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:38,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:38,900 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:38,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:38,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048610060] [2021-03-11 14:42:38,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:38,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:38,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373579916] [2021-03-11 14:42:38,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:38,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:38,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:38,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:38,982 INFO L87 Difference]: Start difference. First operand 1570 states and 7005 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:39,322 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:39,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:39,353 INFO L93 Difference]: Finished difference Result 2978 states and 11766 transitions. [2021-03-11 14:42:39,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:39,356 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:39,363 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:42:39,363 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:42:39,363 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 722.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:42:39,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1578. [2021-03-11 14:42:39,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.455928979074192) internal successors, (7027), 1577 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:39,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7027 transitions. [2021-03-11 14:42:39,412 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7027 transitions. Word has length 28 [2021-03-11 14:42:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:39,412 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7027 transitions. [2021-03-11 14:42:39,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:39,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7027 transitions. [2021-03-11 14:42:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:39,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:39,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:39,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable722 [2021-03-11 14:42:39,415 INFO L428 AbstractCegarLoop]: === Iteration 724 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:39,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:39,415 INFO L82 PathProgramCache]: Analyzing trace with hash 467939056, now seen corresponding path program 716 times [2021-03-11 14:42:39,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:39,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018747146] [2021-03-11 14:42:39,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:39,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:39,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:39,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:39,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:39,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:39,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:39,465 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:39,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:39,504 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:39,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:39,551 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:39,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:39,644 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:39,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:39,754 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:39,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:39,885 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:39,888 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:39,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:39,981 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:39,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:40,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:40,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018747146] [2021-03-11 14:42:40,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:40,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:40,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331573197] [2021-03-11 14:42:40,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:40,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:40,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:40,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:40,068 INFO L87 Difference]: Start difference. First operand 1578 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:40,452 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:40,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:40,492 INFO L93 Difference]: Finished difference Result 2974 states and 11754 transitions. [2021-03-11 14:42:40,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:40,496 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:40,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:40,503 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:42:40,503 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:42:40,503 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 750.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:40,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:42:40,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1574. [2021-03-11 14:42:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.460267005721551) internal successors, (7016), 1573 states have internal predecessors, (7016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:40,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7016 transitions. [2021-03-11 14:42:40,553 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7016 transitions. Word has length 28 [2021-03-11 14:42:40,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:40,553 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7016 transitions. [2021-03-11 14:42:40,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7016 transitions. [2021-03-11 14:42:40,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:40,556 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:40,556 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:40,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable723 [2021-03-11 14:42:40,556 INFO L428 AbstractCegarLoop]: === Iteration 725 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:40,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:40,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1455713478, now seen corresponding path program 717 times [2021-03-11 14:42:40,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:40,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707624408] [2021-03-11 14:42:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:40,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:40,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:40,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:40,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:40,583 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:40,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:40,606 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:40,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:40,640 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:40,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:40,683 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:40,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:40,763 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:40,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:40,859 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:40,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:40,932 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:40,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:41,067 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:41,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:41,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707624408] [2021-03-11 14:42:41,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:41,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:41,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156279155] [2021-03-11 14:42:41,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:41,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:41,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:41,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:41,163 INFO L87 Difference]: Start difference. First operand 1574 states and 7016 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:41,660 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:42:41,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:41,691 INFO L93 Difference]: Finished difference Result 2984 states and 11777 transitions. [2021-03-11 14:42:41,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:41,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:41,702 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:42:41,702 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:42:41,703 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 728.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:42:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1581. [2021-03-11 14:42:41,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.44873417721519) internal successors, (7029), 1580 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:41,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7029 transitions. [2021-03-11 14:42:41,752 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7029 transitions. Word has length 28 [2021-03-11 14:42:41,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:41,752 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7029 transitions. [2021-03-11 14:42:41,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7029 transitions. [2021-03-11 14:42:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:41,755 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:41,755 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:41,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable724 [2021-03-11 14:42:41,755 INFO L428 AbstractCegarLoop]: === Iteration 726 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:41,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:41,755 INFO L82 PathProgramCache]: Analyzing trace with hash 884258672, now seen corresponding path program 718 times [2021-03-11 14:42:41,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:41,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111026804] [2021-03-11 14:42:41,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:41,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:41,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:41,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:41,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:41,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:41,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:41,806 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:41,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:41,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:41,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:41,885 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:41,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:41,974 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:41,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:42,088 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:42,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:42,172 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:42,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:42,267 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:42,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:42,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111026804] [2021-03-11 14:42:42,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:42,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:42,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802703594] [2021-03-11 14:42:42,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:42,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:42,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:42,353 INFO L87 Difference]: Start difference. First operand 1581 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:42,737 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:42,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:42,778 INFO L93 Difference]: Finished difference Result 2983 states and 11768 transitions. [2021-03-11 14:42:42,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:42,781 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:42,788 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:42:42,788 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:42:42,788 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 695.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:42,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:42:42,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1574. [2021-03-11 14:42:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.45772409408773) internal successors, (7012), 1573 states have internal predecessors, (7012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7012 transitions. [2021-03-11 14:42:42,838 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7012 transitions. Word has length 28 [2021-03-11 14:42:42,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:42,838 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7012 transitions. [2021-03-11 14:42:42,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7012 transitions. [2021-03-11 14:42:42,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:42,841 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:42,841 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:42,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable725 [2021-03-11 14:42:42,841 INFO L428 AbstractCegarLoop]: === Iteration 727 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:42,841 INFO L82 PathProgramCache]: Analyzing trace with hash -67290746, now seen corresponding path program 719 times [2021-03-11 14:42:42,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:42,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429529601] [2021-03-11 14:42:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:42,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:42,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:42,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:42,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:42,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:42,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:42,892 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:42,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:42,926 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:42,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:42,969 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:42,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:43,058 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:43,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:43,176 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:43,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:43,313 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:43,316 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:43,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:43,412 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:43,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:43,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429529601] [2021-03-11 14:42:43,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:43,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:43,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789354695] [2021-03-11 14:42:43,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:43,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:43,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:43,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:43,499 INFO L87 Difference]: Start difference. First operand 1574 states and 7012 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:43,881 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:43,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:43,915 INFO L93 Difference]: Finished difference Result 2973 states and 11748 transitions. [2021-03-11 14:42:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:43,918 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:43,925 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:42:43,925 INFO L226 Difference]: Without dead ends: 2959 [2021-03-11 14:42:43,925 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 751.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-11 14:42:43,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1578. [2021-03-11 14:42:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.450856055802156) internal successors, (7019), 1577 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:43,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7019 transitions. [2021-03-11 14:42:43,974 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7019 transitions. Word has length 28 [2021-03-11 14:42:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:43,974 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7019 transitions. [2021-03-11 14:42:43,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7019 transitions. [2021-03-11 14:42:43,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:43,977 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:43,977 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:43,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable726 [2021-03-11 14:42:43,977 INFO L428 AbstractCegarLoop]: === Iteration 728 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:43,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:43,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1422114250, now seen corresponding path program 720 times [2021-03-11 14:42:43,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:43,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339542783] [2021-03-11 14:42:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:43,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:43,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:43,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:43,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:44,003 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:44,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:44,025 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 14:42:44,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 14:42:44,055 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 14:42:44,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 14:42:44,094 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:44,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:44,171 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:42:44,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:42:44,278 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:44,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:44,404 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:44,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:44,499 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:44,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:44,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339542783] [2021-03-11 14:42:44,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:44,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:44,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674418431] [2021-03-11 14:42:44,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:44,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:44,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:44,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:44,583 INFO L87 Difference]: Start difference. First operand 1578 states and 7019 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:44,967 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:42:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:45,017 INFO L93 Difference]: Finished difference Result 2976 states and 11750 transitions. [2021-03-11 14:42:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:45,020 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:45,026 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:42:45,026 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:42:45,026 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 705.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:45,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:42:45,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1545. [2021-03-11 14:42:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 4.504533678756476) internal successors, (6955), 1544 states have internal predecessors, (6955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 6955 transitions. [2021-03-11 14:42:45,075 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 6955 transitions. Word has length 28 [2021-03-11 14:42:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:45,075 INFO L480 AbstractCegarLoop]: Abstraction has 1545 states and 6955 transitions. [2021-03-11 14:42:45,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 6955 transitions. [2021-03-11 14:42:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:45,078 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:45,078 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:45,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable727 [2021-03-11 14:42:45,078 INFO L428 AbstractCegarLoop]: === Iteration 729 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash -645301276, now seen corresponding path program 721 times [2021-03-11 14:42:45,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:45,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881888905] [2021-03-11 14:42:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:45,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:45,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:45,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:45,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:45,106 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:45,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:45,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:45,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:45,158 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:45,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:45,202 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:45,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:45,254 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:45,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:45,359 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:45,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:45,438 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:45,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:45,526 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:45,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:45,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881888905] [2021-03-11 14:42:45,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:45,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:45,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662875904] [2021-03-11 14:42:45,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:45,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:45,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:45,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:45,616 INFO L87 Difference]: Start difference. First operand 1545 states and 6955 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:46,154 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:46,183 INFO L93 Difference]: Finished difference Result 2968 states and 11774 transitions. [2021-03-11 14:42:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:46,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:46,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:46,193 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:42:46,193 INFO L226 Difference]: Without dead ends: 2953 [2021-03-11 14:42:46,194 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 641.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:46,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-03-11 14:42:46,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1581. [2021-03-11 14:42:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.494303797468355) internal successors, (7101), 1580 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7101 transitions. [2021-03-11 14:42:46,244 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7101 transitions. Word has length 28 [2021-03-11 14:42:46,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:46,244 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7101 transitions. [2021-03-11 14:42:46,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7101 transitions. [2021-03-11 14:42:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:46,247 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:46,247 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:46,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable728 [2021-03-11 14:42:46,247 INFO L428 AbstractCegarLoop]: === Iteration 730 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:46,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:46,247 INFO L82 PathProgramCache]: Analyzing trace with hash 99401222, now seen corresponding path program 722 times [2021-03-11 14:42:46,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:46,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883024183] [2021-03-11 14:42:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:46,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:46,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:46,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:46,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:46,276 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:46,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:46,301 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:46,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:46,338 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:46,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:46,386 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:46,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:46,444 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:46,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:46,552 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:46,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:46,628 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:46,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:46,720 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:46,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:46,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883024183] [2021-03-11 14:42:46,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:46,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:46,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836074043] [2021-03-11 14:42:46,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:46,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:46,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:46,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:46,804 INFO L87 Difference]: Start difference. First operand 1581 states and 7101 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:47,299 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:47,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:47,332 INFO L93 Difference]: Finished difference Result 2969 states and 11771 transitions. [2021-03-11 14:42:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:47,335 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:47,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:47,341 INFO L225 Difference]: With dead ends: 2969 [2021-03-11 14:42:47,341 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:42:47,342 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 654.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:47,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:42:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1576. [2021-03-11 14:42:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.4996825396825395) internal successors, (7087), 1575 states have internal predecessors, (7087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7087 transitions. [2021-03-11 14:42:47,389 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7087 transitions. Word has length 28 [2021-03-11 14:42:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:47,389 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7087 transitions. [2021-03-11 14:42:47,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:47,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7087 transitions. [2021-03-11 14:42:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:47,392 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:47,392 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:47,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable729 [2021-03-11 14:42:47,392 INFO L428 AbstractCegarLoop]: === Iteration 731 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:47,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:47,392 INFO L82 PathProgramCache]: Analyzing trace with hash 965639682, now seen corresponding path program 723 times [2021-03-11 14:42:47,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:47,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612145639] [2021-03-11 14:42:47,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:47,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:47,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:47,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:47,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:47,420 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:47,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:47,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:47,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:47,477 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:47,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:47,524 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:47,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:47,589 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:47,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:47,709 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:47,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:47,832 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:47,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:47,924 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:47,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:48,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612145639] [2021-03-11 14:42:48,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:48,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:48,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059994689] [2021-03-11 14:42:48,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:48,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:48,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:48,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:48,008 INFO L87 Difference]: Start difference. First operand 1576 states and 7087 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:48,518 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:48,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:48,547 INFO L93 Difference]: Finished difference Result 2973 states and 11778 transitions. [2021-03-11 14:42:48,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:48,551 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:48,557 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:42:48,557 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:42:48,558 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 709.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:48,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:42:48,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1582. [2021-03-11 14:42:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.489563567362429) internal successors, (7098), 1581 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:48,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7098 transitions. [2021-03-11 14:42:48,606 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7098 transitions. Word has length 28 [2021-03-11 14:42:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:48,606 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7098 transitions. [2021-03-11 14:42:48,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7098 transitions. [2021-03-11 14:42:48,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:48,608 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:48,608 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:48,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable730 [2021-03-11 14:42:48,609 INFO L428 AbstractCegarLoop]: === Iteration 732 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:48,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:48,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1839922618, now seen corresponding path program 724 times [2021-03-11 14:42:48,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:48,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944156026] [2021-03-11 14:42:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:48,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:48,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:48,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:48,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:48,635 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:48,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:48,658 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:48,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:48,690 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:48,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:48,734 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:48,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:48,786 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:48,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:48,888 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:48,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:49,023 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:42:49,026 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:49,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:49,131 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:49,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:49,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944156026] [2021-03-11 14:42:49,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:49,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:49,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986850937] [2021-03-11 14:42:49,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:49,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:49,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:49,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:49,216 INFO L87 Difference]: Start difference. First operand 1582 states and 7098 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:49,586 INFO L93 Difference]: Finished difference Result 2978 states and 11782 transitions. [2021-03-11 14:42:49,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:49,589 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:49,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:49,595 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:42:49,595 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:42:49,595 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 636.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:42:49,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1576. [2021-03-11 14:42:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.495873015873016) internal successors, (7081), 1575 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7081 transitions. [2021-03-11 14:42:49,642 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7081 transitions. Word has length 28 [2021-03-11 14:42:49,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:49,642 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7081 transitions. [2021-03-11 14:42:49,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:49,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7081 transitions. [2021-03-11 14:42:49,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:49,644 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:49,644 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:49,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable731 [2021-03-11 14:42:49,644 INFO L428 AbstractCegarLoop]: === Iteration 733 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:49,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:49,644 INFO L82 PathProgramCache]: Analyzing trace with hash -973684158, now seen corresponding path program 725 times [2021-03-11 14:42:49,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:49,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992618056] [2021-03-11 14:42:49,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:49,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:49,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:49,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:49,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:49,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:49,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:49,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:49,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:49,727 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:49,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:49,771 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:49,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:49,829 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:49,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:49,944 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:49,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:50,078 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:50,081 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:50,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:50,174 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:50,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:50,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992618056] [2021-03-11 14:42:50,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:50,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:50,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704719232] [2021-03-11 14:42:50,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:50,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:50,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:50,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:50,267 INFO L87 Difference]: Start difference. First operand 1576 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:50,656 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:50,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:50,690 INFO L93 Difference]: Finished difference Result 2976 states and 11779 transitions. [2021-03-11 14:42:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:50,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:50,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:50,700 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:42:50,700 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:42:50,700 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 725.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:50,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:42:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1583. [2021-03-11 14:42:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.484197218710493) internal successors, (7094), 1582 states have internal predecessors, (7094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7094 transitions. [2021-03-11 14:42:50,749 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7094 transitions. Word has length 28 [2021-03-11 14:42:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:50,749 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7094 transitions. [2021-03-11 14:42:50,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7094 transitions. [2021-03-11 14:42:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:50,752 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:50,752 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:50,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable732 [2021-03-11 14:42:50,752 INFO L428 AbstractCegarLoop]: === Iteration 734 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:50,752 INFO L82 PathProgramCache]: Analyzing trace with hash -228981660, now seen corresponding path program 726 times [2021-03-11 14:42:50,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:50,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062505240] [2021-03-11 14:42:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:50,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:50,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:50,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:50,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:50,781 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:50,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:50,805 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:50,840 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:50,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:50,887 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:50,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:50,947 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:50,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:51,063 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:51,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:51,192 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:42:51,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:42:51,285 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:51,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:51,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:51,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062505240] [2021-03-11 14:42:51,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:51,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:51,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049890887] [2021-03-11 14:42:51,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:51,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:51,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:51,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:51,367 INFO L87 Difference]: Start difference. First operand 1583 states and 7094 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:51,869 INFO L93 Difference]: Finished difference Result 2980 states and 11780 transitions. [2021-03-11 14:42:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:51,873 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:51,880 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:42:51,880 INFO L226 Difference]: Without dead ends: 2947 [2021-03-11 14:42:51,880 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 657.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:51,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-03-11 14:42:51,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1570. [2021-03-11 14:42:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.5022307202039515) internal successors, (7064), 1569 states have internal predecessors, (7064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7064 transitions. [2021-03-11 14:42:51,930 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7064 transitions. Word has length 28 [2021-03-11 14:42:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:51,930 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7064 transitions. [2021-03-11 14:42:51,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7064 transitions. [2021-03-11 14:42:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:51,933 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:51,933 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:51,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable733 [2021-03-11 14:42:51,933 INFO L428 AbstractCegarLoop]: === Iteration 735 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:51,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:51,933 INFO L82 PathProgramCache]: Analyzing trace with hash 74711198, now seen corresponding path program 727 times [2021-03-11 14:42:51,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:51,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711080164] [2021-03-11 14:42:51,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:51,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:51,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:51,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:51,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:51,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:51,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:51,990 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:51,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:52,025 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:52,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:52,071 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:52,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:52,130 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:52,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:52,200 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:52,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:52,282 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:52,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:52,378 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:52,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:52,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711080164] [2021-03-11 14:42:52,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:52,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:52,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344989412] [2021-03-11 14:42:52,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:52,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:52,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:52,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:52,466 INFO L87 Difference]: Start difference. First operand 1570 states and 7064 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:52,869 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:52,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:52,904 INFO L93 Difference]: Finished difference Result 2963 states and 11758 transitions. [2021-03-11 14:42:52,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:52,907 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:52,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:52,916 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:42:52,916 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:42:52,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 643.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:52,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:42:52,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1580. [2021-03-11 14:42:52,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.4914502849905) internal successors, (7092), 1579 states have internal predecessors, (7092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7092 transitions. [2021-03-11 14:42:52,965 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7092 transitions. Word has length 28 [2021-03-11 14:42:52,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:52,965 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7092 transitions. [2021-03-11 14:42:52,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7092 transitions. [2021-03-11 14:42:52,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:52,968 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:52,968 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:52,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable734 [2021-03-11 14:42:52,968 INFO L428 AbstractCegarLoop]: === Iteration 736 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:52,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:52,968 INFO L82 PathProgramCache]: Analyzing trace with hash 819413696, now seen corresponding path program 728 times [2021-03-11 14:42:52,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:52,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239475093] [2021-03-11 14:42:52,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:52,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:52,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:52,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:52,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:52,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:52,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:53,022 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:53,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:53,056 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:53,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:53,103 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:53,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:53,160 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:53,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:53,225 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:42:53,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:42:53,303 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:53,396 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:53,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:53,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239475093] [2021-03-11 14:42:53,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:53,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:53,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638355236] [2021-03-11 14:42:53,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:53,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:53,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:53,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:53,484 INFO L87 Difference]: Start difference. First operand 1580 states and 7092 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:53,993 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:54,032 INFO L93 Difference]: Finished difference Result 2964 states and 11755 transitions. [2021-03-11 14:42:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:54,035 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:54,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:54,042 INFO L225 Difference]: With dead ends: 2964 [2021-03-11 14:42:54,043 INFO L226 Difference]: Without dead ends: 2943 [2021-03-11 14:42:54,043 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 613.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:54,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-03-11 14:42:54,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1575. [2021-03-11 14:42:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.496823379923761) internal successors, (7078), 1574 states have internal predecessors, (7078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7078 transitions. [2021-03-11 14:42:54,093 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7078 transitions. Word has length 28 [2021-03-11 14:42:54,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:54,093 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7078 transitions. [2021-03-11 14:42:54,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:54,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7078 transitions. [2021-03-11 14:42:54,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:54,096 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:54,096 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:54,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable735 [2021-03-11 14:42:54,096 INFO L428 AbstractCegarLoop]: === Iteration 737 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:54,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:54,096 INFO L82 PathProgramCache]: Analyzing trace with hash -998374182, now seen corresponding path program 729 times [2021-03-11 14:42:54,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:54,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447555905] [2021-03-11 14:42:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:54,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:54,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:54,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:54,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:54,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:54,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:54,151 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:54,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:54,187 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:54,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:54,240 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:54,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:54,303 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:54,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:54,375 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:54,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:54,510 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:54,513 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:54,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:54,608 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:54,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:54,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447555905] [2021-03-11 14:42:54,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:54,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:54,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816802631] [2021-03-11 14:42:54,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:54,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:54,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:54,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:54,703 INFO L87 Difference]: Start difference. First operand 1575 states and 7078 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:55,256 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:55,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:55,283 INFO L93 Difference]: Finished difference Result 2965 states and 11757 transitions. [2021-03-11 14:42:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:55,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:55,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:55,291 INFO L225 Difference]: With dead ends: 2965 [2021-03-11 14:42:55,291 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:42:55,291 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 709.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:55,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:42:55,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1580. [2021-03-11 14:42:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.48828372387587) internal successors, (7087), 1579 states have internal predecessors, (7087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7087 transitions. [2021-03-11 14:42:55,338 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7087 transitions. Word has length 28 [2021-03-11 14:42:55,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:55,339 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7087 transitions. [2021-03-11 14:42:55,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:55,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7087 transitions. [2021-03-11 14:42:55,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:55,341 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:55,341 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:55,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable736 [2021-03-11 14:42:55,341 INFO L428 AbstractCegarLoop]: === Iteration 738 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:55,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:55,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1235733312, now seen corresponding path program 730 times [2021-03-11 14:42:55,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:55,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300537147] [2021-03-11 14:42:55,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:55,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:55,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:55,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:55,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:55,366 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:55,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:55,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:55,420 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:55,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:55,463 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:55,520 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:55,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:55,589 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:42:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:42:55,715 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:42:55,718 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:55,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:55,813 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:55,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:55,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300537147] [2021-03-11 14:42:55,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:55,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:55,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769460699] [2021-03-11 14:42:55,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:55,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:55,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:55,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:55,895 INFO L87 Difference]: Start difference. First operand 1580 states and 7087 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:56,319 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:42:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:56,366 INFO L93 Difference]: Finished difference Result 2968 states and 11758 transitions. [2021-03-11 14:42:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:56,369 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:56,377 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:42:56,377 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:42:56,377 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 668.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:56,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:42:56,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1575. [2021-03-11 14:42:56,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.493646759847522) internal successors, (7073), 1574 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7073 transitions. [2021-03-11 14:42:56,426 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7073 transitions. Word has length 28 [2021-03-11 14:42:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:56,426 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7073 transitions. [2021-03-11 14:42:56,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7073 transitions. [2021-03-11 14:42:56,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:56,429 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:56,429 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:56,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable737 [2021-03-11 14:42:56,429 INFO L428 AbstractCegarLoop]: === Iteration 739 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:56,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1357269274, now seen corresponding path program 731 times [2021-03-11 14:42:56,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:56,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104613771] [2021-03-11 14:42:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:56,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:56,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:56,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:56,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:56,458 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:56,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:56,483 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:56,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:56,518 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:56,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:56,567 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:56,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:56,627 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:56,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:56,697 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:56,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:56,778 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:56,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:56,871 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:56,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:56,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104613771] [2021-03-11 14:42:56,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:56,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:56,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612782495] [2021-03-11 14:42:56,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:56,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:56,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:56,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:56,961 INFO L87 Difference]: Start difference. First operand 1575 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:57,481 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:42:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:57,512 INFO L93 Difference]: Finished difference Result 2968 states and 11759 transitions. [2021-03-11 14:42:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:57,515 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:57,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:57,522 INFO L225 Difference]: With dead ends: 2968 [2021-03-11 14:42:57,522 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:42:57,522 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 632.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:57,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:42:57,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1581. [2021-03-11 14:42:57,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.483544303797468) internal successors, (7084), 1580 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7084 transitions. [2021-03-11 14:42:57,571 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7084 transitions. Word has length 28 [2021-03-11 14:42:57,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:57,571 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7084 transitions. [2021-03-11 14:42:57,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7084 transitions. [2021-03-11 14:42:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:57,573 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:57,573 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:57,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable738 [2021-03-11 14:42:57,573 INFO L428 AbstractCegarLoop]: === Iteration 740 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:57,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:57,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1448293026, now seen corresponding path program 732 times [2021-03-11 14:42:57,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:57,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123573601] [2021-03-11 14:42:57,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:57,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:57,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:57,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:57,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:57,602 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:57,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:57,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:57,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:57,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:57,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:57,712 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:57,772 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:42:57,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:42:57,844 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:57,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:57,930 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:57,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:58,026 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:58,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:58,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123573601] [2021-03-11 14:42:58,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:58,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:58,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719166463] [2021-03-11 14:42:58,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:58,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:58,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:58,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:58,116 INFO L87 Difference]: Start difference. First operand 1581 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:58,428 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:42:58,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:58,465 INFO L93 Difference]: Finished difference Result 2970 states and 11757 transitions. [2021-03-11 14:42:58,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:58,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:58,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:58,475 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:42:58,475 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:42:58,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 648.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:58,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:42:58,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1570. [2021-03-11 14:42:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.499043977055449) internal successors, (7059), 1569 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7059 transitions. [2021-03-11 14:42:58,524 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7059 transitions. Word has length 28 [2021-03-11 14:42:58,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:58,524 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7059 transitions. [2021-03-11 14:42:58,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7059 transitions. [2021-03-11 14:42:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:58,527 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:58,527 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:58,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739 [2021-03-11 14:42:58,527 INFO L428 AbstractCegarLoop]: === Iteration 741 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:58,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:58,527 INFO L82 PathProgramCache]: Analyzing trace with hash 85214302, now seen corresponding path program 733 times [2021-03-11 14:42:58,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:58,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375012940] [2021-03-11 14:42:58,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:58,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:58,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:58,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:58,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:58,555 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:58,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:58,581 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:58,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:58,616 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:58,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:58,664 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:58,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:58,722 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:58,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:58,843 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:58,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:42:58,971 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:42:58,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:42:59,066 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:42:59,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:42:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:42:59,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375012940] [2021-03-11 14:42:59,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:42:59,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:42:59,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511881508] [2021-03-11 14:42:59,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:42:59,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:42:59,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:42:59,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:42:59,156 INFO L87 Difference]: Start difference. First operand 1570 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:59,511 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:42:59,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:42:59,542 INFO L93 Difference]: Finished difference Result 2979 states and 11785 transitions. [2021-03-11 14:42:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:42:59,545 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:42:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:42:59,552 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:42:59,552 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:42:59,552 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 729.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:42:59,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:42:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1583. [2021-03-11 14:42:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.484197218710493) internal successors, (7094), 1582 states have internal predecessors, (7094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7094 transitions. [2021-03-11 14:42:59,602 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7094 transitions. Word has length 28 [2021-03-11 14:42:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:42:59,602 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7094 transitions. [2021-03-11 14:42:59,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:42:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7094 transitions. [2021-03-11 14:42:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:42:59,605 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:42:59,605 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:42:59,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable740 [2021-03-11 14:42:59,605 INFO L428 AbstractCegarLoop]: === Iteration 742 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:42:59,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:42:59,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1574619298, now seen corresponding path program 734 times [2021-03-11 14:42:59,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:42:59,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157435176] [2021-03-11 14:42:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:42:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:42:59,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:59,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:42:59,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:42:59,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:42:59,635 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:42:59,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:42:59,661 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:42:59,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:42:59,697 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:42:59,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:42:59,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:42:59,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:42:59,808 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:42:59,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:42:59,926 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:42:59,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:00,058 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:43:00,061 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:00,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:00,160 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:00,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:00,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157435176] [2021-03-11 14:43:00,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:00,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:00,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795073384] [2021-03-11 14:43:00,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:00,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:00,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:00,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:00,246 INFO L87 Difference]: Start difference. First operand 1583 states and 7094 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:00,591 INFO L93 Difference]: Finished difference Result 2984 states and 11789 transitions. [2021-03-11 14:43:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:00,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:00,602 INFO L225 Difference]: With dead ends: 2984 [2021-03-11 14:43:00,602 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:43:00,602 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 677.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:43:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1577. [2021-03-11 14:43:00,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.490482233502538) internal successors, (7077), 1576 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:00,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7077 transitions. [2021-03-11 14:43:00,652 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7077 transitions. Word has length 28 [2021-03-11 14:43:00,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:00,652 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7077 transitions. [2021-03-11 14:43:00,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7077 transitions. [2021-03-11 14:43:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:00,655 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:00,655 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:00,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable741 [2021-03-11 14:43:00,655 INFO L428 AbstractCegarLoop]: === Iteration 743 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:00,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:00,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1696155260, now seen corresponding path program 735 times [2021-03-11 14:43:00,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:00,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640288937] [2021-03-11 14:43:00,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:00,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:00,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:00,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:00,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:00,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:00,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:00,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:00,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:00,752 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:00,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:00,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:00,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:00,860 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:00,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:00,971 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:43:00,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:43:01,094 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:01,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:01,197 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:01,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:01,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640288937] [2021-03-11 14:43:01,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:01,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:01,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308462882] [2021-03-11 14:43:01,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:01,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:01,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:01,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:01,296 INFO L87 Difference]: Start difference. First operand 1577 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:01,660 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:01,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:01,691 INFO L93 Difference]: Finished difference Result 2976 states and 11774 transitions. [2021-03-11 14:43:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:01,702 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:43:01,702 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:43:01,702 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 752.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:01,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:43:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1582. [2021-03-11 14:43:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.481973434535105) internal successors, (7086), 1581 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:01,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7086 transitions. [2021-03-11 14:43:01,753 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7086 transitions. Word has length 28 [2021-03-11 14:43:01,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:01,753 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7086 transitions. [2021-03-11 14:43:01,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:01,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7086 transitions. [2021-03-11 14:43:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:01,756 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:01,756 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:01,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable742 [2021-03-11 14:43:01,756 INFO L428 AbstractCegarLoop]: === Iteration 744 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:01,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:01,756 INFO L82 PathProgramCache]: Analyzing trace with hash -364704542, now seen corresponding path program 736 times [2021-03-11 14:43:01,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:01,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980315159] [2021-03-11 14:43:01,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:01,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:01,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:01,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:01,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:01,785 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:01,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:01,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:01,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:01,850 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:01,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:01,901 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:01,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:01,963 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:01,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:02,090 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:43:02,092 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:43:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:43:02,236 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:02,240 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:02,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:02,340 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:02,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:02,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980315159] [2021-03-11 14:43:02,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:02,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:02,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463129452] [2021-03-11 14:43:02,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:02,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:02,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:02,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:02,431 INFO L87 Difference]: Start difference. First operand 1582 states and 7086 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:02,840 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:43:02,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:02,880 INFO L93 Difference]: Finished difference Result 2979 states and 11775 transitions. [2021-03-11 14:43:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:02,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:02,890 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:43:02,890 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:43:02,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 787.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:02,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:43:02,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1577. [2021-03-11 14:43:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.4873096446700504) internal successors, (7072), 1576 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7072 transitions. [2021-03-11 14:43:02,939 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7072 transitions. Word has length 28 [2021-03-11 14:43:02,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:02,939 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7072 transitions. [2021-03-11 14:43:02,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7072 transitions. [2021-03-11 14:43:02,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:02,942 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:02,942 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:02,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable743 [2021-03-11 14:43:02,942 INFO L428 AbstractCegarLoop]: === Iteration 745 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:02,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:02,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2112474876, now seen corresponding path program 737 times [2021-03-11 14:43:02,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:02,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120279952] [2021-03-11 14:43:02,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:02,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:02,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:02,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:02,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:02,973 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:02,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:02,998 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:02,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:03,034 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:03,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:03,085 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:03,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:03,147 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:03,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:03,269 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:43:03,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:43:03,357 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:03,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:03,457 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:03,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:03,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120279952] [2021-03-11 14:43:03,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:03,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:03,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147433460] [2021-03-11 14:43:03,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:03,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:03,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:03,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:03,547 INFO L87 Difference]: Start difference. First operand 1577 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:03,878 INFO L93 Difference]: Finished difference Result 2991 states and 11799 transitions. [2021-03-11 14:43:03,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:03,881 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:03,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:03,889 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:43:03,889 INFO L226 Difference]: Without dead ends: 2971 [2021-03-11 14:43:03,889 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 642.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-03-11 14:43:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1587. [2021-03-11 14:43:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.469735182849937) internal successors, (7089), 1586 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7089 transitions. [2021-03-11 14:43:03,938 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7089 transitions. Word has length 28 [2021-03-11 14:43:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:03,938 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7089 transitions. [2021-03-11 14:43:03,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7089 transitions. [2021-03-11 14:43:03,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:03,941 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:03,941 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:03,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable744 [2021-03-11 14:43:03,941 INFO L428 AbstractCegarLoop]: === Iteration 746 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:03,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:03,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1437789922, now seen corresponding path program 738 times [2021-03-11 14:43:03,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:03,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361920638] [2021-03-11 14:43:03,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:03,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:03,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:03,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:03,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:03,970 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:03,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:03,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:03,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:04,032 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:04,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:04,083 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:04,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:04,146 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:04,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:04,266 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:43:04,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:43:04,352 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:04,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:04,447 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:04,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:04,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361920638] [2021-03-11 14:43:04,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:04,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:04,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667839207] [2021-03-11 14:43:04,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:04,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:04,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:04,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:04,533 INFO L87 Difference]: Start difference. First operand 1587 states and 7089 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:04,871 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:43:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:04,915 INFO L93 Difference]: Finished difference Result 2989 states and 11787 transitions. [2021-03-11 14:43:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:04,927 INFO L225 Difference]: With dead ends: 2989 [2021-03-11 14:43:04,927 INFO L226 Difference]: Without dead ends: 2954 [2021-03-11 14:43:04,927 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 691.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-03-11 14:43:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1570. [2021-03-11 14:43:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.494582536647546) internal successors, (7052), 1569 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7052 transitions. [2021-03-11 14:43:04,977 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7052 transitions. Word has length 28 [2021-03-11 14:43:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:04,977 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7052 transitions. [2021-03-11 14:43:04,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7052 transitions. [2021-03-11 14:43:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:04,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:04,981 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:04,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable745 [2021-03-11 14:43:04,981 INFO L428 AbstractCegarLoop]: === Iteration 747 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:04,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:04,981 INFO L82 PathProgramCache]: Analyzing trace with hash 840419904, now seen corresponding path program 739 times [2021-03-11 14:43:04,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:04,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976831966] [2021-03-11 14:43:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:04,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:04,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:04,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:05,013 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:05,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:05,040 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:05,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:05,078 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:05,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:05,132 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:05,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:05,193 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:05,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:05,266 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:05,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:05,398 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:05,401 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:05,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:05,498 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:05,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:05,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976831966] [2021-03-11 14:43:05,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:05,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:05,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729691696] [2021-03-11 14:43:05,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:05,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:05,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:05,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:05,588 INFO L87 Difference]: Start difference. First operand 1570 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:05,947 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:05,979 INFO L93 Difference]: Finished difference Result 2986 states and 11797 transitions. [2021-03-11 14:43:05,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:05,982 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:05,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:05,990 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:43:05,990 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:43:05,990 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 708.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:06,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:43:06,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1585. [2021-03-11 14:43:06,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.477904040404041) internal successors, (7093), 1584 states have internal predecessors, (7093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:06,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7093 transitions. [2021-03-11 14:43:06,039 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7093 transitions. Word has length 28 [2021-03-11 14:43:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:06,039 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7093 transitions. [2021-03-11 14:43:06,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7093 transitions. [2021-03-11 14:43:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:06,042 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:06,042 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:06,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable746 [2021-03-11 14:43:06,042 INFO L428 AbstractCegarLoop]: === Iteration 748 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:06,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:06,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1585122402, now seen corresponding path program 740 times [2021-03-11 14:43:06,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:06,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123842273] [2021-03-11 14:43:06,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:06,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:06,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:06,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:06,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:06,070 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:06,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:06,096 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:06,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:06,133 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:06,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:06,182 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:06,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:06,239 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:06,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:06,307 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:06,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:06,434 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:06,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:06,527 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:06,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:06,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123842273] [2021-03-11 14:43:06,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:06,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:06,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526320581] [2021-03-11 14:43:06,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:06,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:06,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:06,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:06,615 INFO L87 Difference]: Start difference. First operand 1585 states and 7093 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:06,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:06,896 INFO L93 Difference]: Finished difference Result 2990 states and 11798 transitions. [2021-03-11 14:43:06,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:06,900 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:06,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:06,906 INFO L225 Difference]: With dead ends: 2990 [2021-03-11 14:43:06,906 INFO L226 Difference]: Without dead ends: 2963 [2021-03-11 14:43:06,906 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 610.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:06,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2021-03-11 14:43:06,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1578. [2021-03-11 14:43:06,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.485098287888396) internal successors, (7073), 1577 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:06,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7073 transitions. [2021-03-11 14:43:06,955 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7073 transitions. Word has length 28 [2021-03-11 14:43:06,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:06,955 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7073 transitions. [2021-03-11 14:43:06,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7073 transitions. [2021-03-11 14:43:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:06,958 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:06,958 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:06,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable747 [2021-03-11 14:43:06,958 INFO L428 AbstractCegarLoop]: === Iteration 749 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:06,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:06,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1843606434, now seen corresponding path program 741 times [2021-03-11 14:43:06,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:06,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453513596] [2021-03-11 14:43:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:06,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:06,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:06,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:06,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:06,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:06,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:07,012 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:07,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:07,046 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:07,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:07,095 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:07,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:07,157 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:07,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:07,231 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:07,315 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:07,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:07,404 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:07,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:07,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453513596] [2021-03-11 14:43:07,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:07,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:07,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909277565] [2021-03-11 14:43:07,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:07,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:07,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:07,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:07,485 INFO L87 Difference]: Start difference. First operand 1578 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:07,807 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:07,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:07,837 INFO L93 Difference]: Finished difference Result 2983 states and 11785 transitions. [2021-03-11 14:43:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:07,839 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:07,846 INFO L225 Difference]: With dead ends: 2983 [2021-03-11 14:43:07,846 INFO L226 Difference]: Without dead ends: 2967 [2021-03-11 14:43:07,846 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 635.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:07,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2021-03-11 14:43:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 1584. [2021-03-11 14:43:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.475047378395452) internal successors, (7084), 1583 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7084 transitions. [2021-03-11 14:43:07,897 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7084 transitions. Word has length 28 [2021-03-11 14:43:07,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:07,897 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7084 transitions. [2021-03-11 14:43:07,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7084 transitions. [2021-03-11 14:43:07,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:07,899 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:07,899 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:07,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable748 [2021-03-11 14:43:07,900 INFO L428 AbstractCegarLoop]: === Iteration 750 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:07,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:07,900 INFO L82 PathProgramCache]: Analyzing trace with hash -354201438, now seen corresponding path program 742 times [2021-03-11 14:43:07,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:07,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341201743] [2021-03-11 14:43:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:07,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:07,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:07,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:07,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:07,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:07,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:07,957 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:07,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:07,996 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:08,060 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:08,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:08,143 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:08,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:08,237 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:08,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:08,350 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:08,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:08,454 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:08,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:08,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341201743] [2021-03-11 14:43:08,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:08,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:08,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379030242] [2021-03-11 14:43:08,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:08,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:08,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:08,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:08,542 INFO L87 Difference]: Start difference. First operand 1584 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:08,865 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:43:08,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:08,905 INFO L93 Difference]: Finished difference Result 2985 states and 11783 transitions. [2021-03-11 14:43:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:08,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:08,915 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:43:08,915 INFO L226 Difference]: Without dead ends: 2961 [2021-03-11 14:43:08,915 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 730.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:08,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-03-11 14:43:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1578. [2021-03-11 14:43:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.481293595434369) internal successors, (7067), 1577 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7067 transitions. [2021-03-11 14:43:08,965 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7067 transitions. Word has length 28 [2021-03-11 14:43:08,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:08,965 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7067 transitions. [2021-03-11 14:43:08,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:08,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7067 transitions. [2021-03-11 14:43:08,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:08,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:08,967 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:08,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable749 [2021-03-11 14:43:08,967 INFO L428 AbstractCegarLoop]: === Iteration 751 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:08,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:08,968 INFO L82 PathProgramCache]: Analyzing trace with hash 512037022, now seen corresponding path program 743 times [2021-03-11 14:43:08,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:08,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077442990] [2021-03-11 14:43:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:08,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:08,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:08,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:08,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:08,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:08,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:09,023 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:09,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:09,060 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:09,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:09,110 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:09,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:09,168 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:09,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:09,241 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:43:09,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:43:09,326 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:09,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:09,422 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:09,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:09,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077442990] [2021-03-11 14:43:09,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:09,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:09,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879655481] [2021-03-11 14:43:09,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:09,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:09,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:09,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:09,507 INFO L87 Difference]: Start difference. First operand 1578 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:09,796 INFO L93 Difference]: Finished difference Result 2995 states and 11802 transitions. [2021-03-11 14:43:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:09,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:09,806 INFO L225 Difference]: With dead ends: 2995 [2021-03-11 14:43:09,806 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:43:09,806 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 580.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:09,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:43:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1588. [2021-03-11 14:43:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.463768115942029) internal successors, (7084), 1587 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:09,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7084 transitions. [2021-03-11 14:43:09,857 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7084 transitions. Word has length 28 [2021-03-11 14:43:09,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:09,857 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7084 transitions. [2021-03-11 14:43:09,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7084 transitions. [2021-03-11 14:43:09,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:09,860 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:09,860 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:09,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable750 [2021-03-11 14:43:09,860 INFO L428 AbstractCegarLoop]: === Iteration 752 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:09,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1256739520, now seen corresponding path program 744 times [2021-03-11 14:43:09,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:09,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416518131] [2021-03-11 14:43:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:09,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:09,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:09,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:09,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:09,889 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:09,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:09,914 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:09,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:09,951 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:09,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:10,003 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:10,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:10,066 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:10,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:10,140 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:43:10,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:43:10,236 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:10,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:10,341 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:10,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:10,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:10,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416518131] [2021-03-11 14:43:10,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:10,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:10,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128915412] [2021-03-11 14:43:10,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:10,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:10,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:10,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:10,434 INFO L87 Difference]: Start difference. First operand 1588 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:10,862 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:43:10,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:10,907 INFO L93 Difference]: Finished difference Result 2993 states and 11790 transitions. [2021-03-11 14:43:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:10,917 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:43:10,917 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:43:10,917 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 692.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:43:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1563. [2021-03-11 14:43:10,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.501920614596671) internal successors, (7032), 1562 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7032 transitions. [2021-03-11 14:43:10,966 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7032 transitions. Word has length 28 [2021-03-11 14:43:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:10,966 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7032 transitions. [2021-03-11 14:43:10,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:10,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7032 transitions. [2021-03-11 14:43:10,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:10,969 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:10,969 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:10,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable751 [2021-03-11 14:43:10,969 INFO L428 AbstractCegarLoop]: === Iteration 753 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:10,969 INFO L82 PathProgramCache]: Analyzing trace with hash -725043348, now seen corresponding path program 745 times [2021-03-11 14:43:10,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:10,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871570769] [2021-03-11 14:43:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:10,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:10,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:10,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:10,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:11,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:11,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:11,043 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:11,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:11,091 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:11,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:11,155 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:11,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:11,235 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:11,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:11,376 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:43:11,379 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:11,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:11,487 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:11,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:11,609 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:11,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:11,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871570769] [2021-03-11 14:43:11,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:11,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:11,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814589351] [2021-03-11 14:43:11,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:11,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:11,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:11,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:11,705 INFO L87 Difference]: Start difference. First operand 1563 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:12,070 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:12,099 INFO L93 Difference]: Finished difference Result 2962 states and 11754 transitions. [2021-03-11 14:43:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:12,103 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:12,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:12,109 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:43:12,109 INFO L226 Difference]: Without dead ends: 2947 [2021-03-11 14:43:12,109 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 812.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-03-11 14:43:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1580. [2021-03-11 14:43:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.490816972767575) internal successors, (7091), 1579 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:12,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7091 transitions. [2021-03-11 14:43:12,161 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7091 transitions. Word has length 28 [2021-03-11 14:43:12,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:12,161 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7091 transitions. [2021-03-11 14:43:12,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7091 transitions. [2021-03-11 14:43:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:12,164 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:12,164 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:12,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable752 [2021-03-11 14:43:12,164 INFO L428 AbstractCegarLoop]: === Iteration 754 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:12,164 INFO L82 PathProgramCache]: Analyzing trace with hash 19659150, now seen corresponding path program 746 times [2021-03-11 14:43:12,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:12,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186852247] [2021-03-11 14:43:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:12,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:12,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:12,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:12,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:12,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:12,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:12,230 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:12,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:12,273 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:12,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:12,330 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:12,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:12,399 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:12,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:12,534 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:43:12,537 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:12,636 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:12,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:12,752 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:12,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:12,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:12,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186852247] [2021-03-11 14:43:12,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:12,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:12,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060078801] [2021-03-11 14:43:12,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:12,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:12,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:12,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:12,861 INFO L87 Difference]: Start difference. First operand 1580 states and 7091 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:13,281 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:13,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:13,323 INFO L93 Difference]: Finished difference Result 2963 states and 11751 transitions. [2021-03-11 14:43:13,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:13,327 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:13,335 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:43:13,335 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:43:13,335 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 820.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:43:13,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1575. [2021-03-11 14:43:13,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.4961880559085134) internal successors, (7077), 1574 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7077 transitions. [2021-03-11 14:43:13,389 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7077 transitions. Word has length 28 [2021-03-11 14:43:13,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:13,389 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7077 transitions. [2021-03-11 14:43:13,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7077 transitions. [2021-03-11 14:43:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:13,392 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:13,392 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:13,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753 [2021-03-11 14:43:13,392 INFO L428 AbstractCegarLoop]: === Iteration 755 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:13,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:13,392 INFO L82 PathProgramCache]: Analyzing trace with hash 885897610, now seen corresponding path program 747 times [2021-03-11 14:43:13,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:13,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788585949] [2021-03-11 14:43:13,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:13,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:13,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:13,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:13,427 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:13,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:13,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:13,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:13,500 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:13,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:13,552 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:13,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:13,611 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:13,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:13,723 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:13,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:13,853 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-03-11 14:43:13,856 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:13,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:13,958 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:13,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:14,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788585949] [2021-03-11 14:43:14,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:14,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:14,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203767204] [2021-03-11 14:43:14,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:14,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:14,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:14,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:14,053 INFO L87 Difference]: Start difference. First operand 1575 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:14,412 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:14,443 INFO L93 Difference]: Finished difference Result 2967 states and 11758 transitions. [2021-03-11 14:43:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:14,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:14,454 INFO L225 Difference]: With dead ends: 2967 [2021-03-11 14:43:14,454 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:43:14,454 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 761.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:14,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:43:14,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1581. [2021-03-11 14:43:14,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.4860759493670885) internal successors, (7088), 1580 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7088 transitions. [2021-03-11 14:43:14,504 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7088 transitions. Word has length 28 [2021-03-11 14:43:14,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:14,504 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7088 transitions. [2021-03-11 14:43:14,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:14,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7088 transitions. [2021-03-11 14:43:14,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:14,507 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:14,507 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:14,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable754 [2021-03-11 14:43:14,507 INFO L428 AbstractCegarLoop]: === Iteration 756 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:14,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:14,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1919664690, now seen corresponding path program 748 times [2021-03-11 14:43:14,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:14,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139776421] [2021-03-11 14:43:14,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:14,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:14,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:14,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:14,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:14,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:14,566 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:14,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:14,605 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:14,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:14,660 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:14,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:14,725 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:14,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:14,845 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:14,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:14,984 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-03-11 14:43:14,988 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:14,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:15,099 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:15,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:15,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139776421] [2021-03-11 14:43:15,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:15,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:15,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336936301] [2021-03-11 14:43:15,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:15,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:15,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:15,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:15,190 INFO L87 Difference]: Start difference. First operand 1581 states and 7088 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:15,501 INFO L93 Difference]: Finished difference Result 2972 states and 11762 transitions. [2021-03-11 14:43:15,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:15,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:15,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:15,511 INFO L225 Difference]: With dead ends: 2972 [2021-03-11 14:43:15,511 INFO L226 Difference]: Without dead ends: 2946 [2021-03-11 14:43:15,511 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 715.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2021-03-11 14:43:15,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 1575. [2021-03-11 14:43:15,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.492376111817027) internal successors, (7071), 1574 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7071 transitions. [2021-03-11 14:43:15,560 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7071 transitions. Word has length 28 [2021-03-11 14:43:15,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:15,560 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7071 transitions. [2021-03-11 14:43:15,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7071 transitions. [2021-03-11 14:43:15,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:15,563 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:15,563 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:15,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable755 [2021-03-11 14:43:15,563 INFO L428 AbstractCegarLoop]: === Iteration 757 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:15,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:15,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1053426230, now seen corresponding path program 749 times [2021-03-11 14:43:15,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:15,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787290371] [2021-03-11 14:43:15,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:15,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:15,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:15,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:15,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:15,593 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:15,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:15,621 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:15,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:15,659 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:15,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:15,710 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:15,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:15,773 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:15,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:15,892 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:15,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:16,034 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:16,038 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:16,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:16,146 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:16,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787290371] [2021-03-11 14:43:16,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:16,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:16,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934283345] [2021-03-11 14:43:16,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:16,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:16,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:16,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:16,243 INFO L87 Difference]: Start difference. First operand 1575 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:16,629 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:16,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:16,666 INFO L93 Difference]: Finished difference Result 2970 states and 11759 transitions. [2021-03-11 14:43:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:16,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:16,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:16,677 INFO L225 Difference]: With dead ends: 2970 [2021-03-11 14:43:16,677 INFO L226 Difference]: Without dead ends: 2954 [2021-03-11 14:43:16,677 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 802.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:16,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-03-11 14:43:16,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1582. [2021-03-11 14:43:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.480708412397217) internal successors, (7084), 1581 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7084 transitions. [2021-03-11 14:43:16,727 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7084 transitions. Word has length 28 [2021-03-11 14:43:16,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:16,728 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7084 transitions. [2021-03-11 14:43:16,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:16,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7084 transitions. [2021-03-11 14:43:16,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:16,730 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:16,730 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:16,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable756 [2021-03-11 14:43:16,730 INFO L428 AbstractCegarLoop]: === Iteration 758 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:16,731 INFO L82 PathProgramCache]: Analyzing trace with hash -308723732, now seen corresponding path program 750 times [2021-03-11 14:43:16,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:16,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904973617] [2021-03-11 14:43:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:16,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:16,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:16,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:16,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:16,761 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:16,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:16,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:16,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:16,828 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:16,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:16,880 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:16,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:16,945 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:16,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:17,067 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:17,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:17,205 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:17,208 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:17,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:17,308 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:17,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:17,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904973617] [2021-03-11 14:43:17,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:17,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:17,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115000175] [2021-03-11 14:43:17,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:17,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:17,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:17,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:17,399 INFO L87 Difference]: Start difference. First operand 1582 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:17,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:17,880 INFO L93 Difference]: Finished difference Result 2974 states and 11760 transitions. [2021-03-11 14:43:17,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:17,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:17,892 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:43:17,892 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:43:17,892 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 709.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:17,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:43:17,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1569. [2021-03-11 14:43:17,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.498724489795919) internal successors, (7054), 1568 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7054 transitions. [2021-03-11 14:43:17,942 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7054 transitions. Word has length 28 [2021-03-11 14:43:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:17,942 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7054 transitions. [2021-03-11 14:43:17,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:17,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7054 transitions. [2021-03-11 14:43:17,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:17,945 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:17,945 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:17,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable757 [2021-03-11 14:43:17,945 INFO L428 AbstractCegarLoop]: === Iteration 759 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:17,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:17,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1550256474, now seen corresponding path program 751 times [2021-03-11 14:43:17,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:17,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847880758] [2021-03-11 14:43:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:17,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:17,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:17,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:17,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:17,978 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:18,006 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:18,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:18,045 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:18,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:18,098 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:18,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:18,162 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:18,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:18,238 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:18,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:18,326 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:18,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:18,429 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:18,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:18,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847880758] [2021-03-11 14:43:18,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:18,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:18,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403702923] [2021-03-11 14:43:18,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:18,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:18,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:18,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:18,523 INFO L87 Difference]: Start difference. First operand 1569 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:18,887 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:18,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:18,919 INFO L93 Difference]: Finished difference Result 2956 states and 11736 transitions. [2021-03-11 14:43:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:18,922 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:18,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:18,929 INFO L225 Difference]: With dead ends: 2956 [2021-03-11 14:43:18,930 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:43:18,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 686.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:18,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:43:18,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1579. [2021-03-11 14:43:18,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.487959442332066) internal successors, (7082), 1578 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:18,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7082 transitions. [2021-03-11 14:43:18,979 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7082 transitions. Word has length 28 [2021-03-11 14:43:18,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:18,979 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7082 transitions. [2021-03-11 14:43:18,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:18,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7082 transitions. [2021-03-11 14:43:18,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:18,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:18,981 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:18,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable758 [2021-03-11 14:43:18,981 INFO L428 AbstractCegarLoop]: === Iteration 760 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:18,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:18,982 INFO L82 PathProgramCache]: Analyzing trace with hash -805553976, now seen corresponding path program 752 times [2021-03-11 14:43:18,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:18,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392573561] [2021-03-11 14:43:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:18,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:18,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:18,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:18,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:19,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:19,033 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:19,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:19,067 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:19,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:19,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:19,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:19,170 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:19,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:19,247 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:19,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:19,330 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:19,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:19,423 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:19,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392573561] [2021-03-11 14:43:19,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:19,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:19,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330123325] [2021-03-11 14:43:19,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:19,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:19,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:19,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:19,509 INFO L87 Difference]: Start difference. First operand 1579 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:19,871 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:19,906 INFO L93 Difference]: Finished difference Result 2957 states and 11733 transitions. [2021-03-11 14:43:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:19,909 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:19,916 INFO L225 Difference]: With dead ends: 2957 [2021-03-11 14:43:19,916 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:43:19,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 636.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:19,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:43:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1574. [2021-03-11 14:43:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.4933248569612205) internal successors, (7068), 1573 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7068 transitions. [2021-03-11 14:43:19,965 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7068 transitions. Word has length 28 [2021-03-11 14:43:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:19,965 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7068 transitions. [2021-03-11 14:43:19,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7068 transitions. [2021-03-11 14:43:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:19,968 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:19,968 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:19,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable759 [2021-03-11 14:43:19,968 INFO L428 AbstractCegarLoop]: === Iteration 761 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:19,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1136395640, now seen corresponding path program 753 times [2021-03-11 14:43:19,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:19,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948741874] [2021-03-11 14:43:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:19,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:19,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:19,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:19,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:19,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:19,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:20,024 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:20,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:20,062 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:20,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:20,116 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:20,182 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:20,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:20,261 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:20,351 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:20,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:20,465 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:20,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:20,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:20,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948741874] [2021-03-11 14:43:20,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:20,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:20,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364933944] [2021-03-11 14:43:20,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:20,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:20,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:20,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:20,563 INFO L87 Difference]: Start difference. First operand 1574 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:21,015 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:43:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:21,052 INFO L93 Difference]: Finished difference Result 2957 states and 11733 transitions. [2021-03-11 14:43:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:21,063 INFO L225 Difference]: With dead ends: 2957 [2021-03-11 14:43:21,063 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:43:21,063 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 711.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:21,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:43:21,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1579. [2021-03-11 14:43:21,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.484790874524715) internal successors, (7077), 1578 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7077 transitions. [2021-03-11 14:43:21,113 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7077 transitions. Word has length 28 [2021-03-11 14:43:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:21,113 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7077 transitions. [2021-03-11 14:43:21,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7077 transitions. [2021-03-11 14:43:21,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:21,116 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:21,116 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:21,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable760 [2021-03-11 14:43:21,116 INFO L428 AbstractCegarLoop]: === Iteration 762 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:21,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:21,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1495918968, now seen corresponding path program 754 times [2021-03-11 14:43:21,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:21,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903845105] [2021-03-11 14:43:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:21,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:21,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:21,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:21,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:21,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:21,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:21,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:21,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:21,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:21,262 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:21,327 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:21,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:21,405 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:21,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:21,494 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:21,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:21,596 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:21,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:21,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903845105] [2021-03-11 14:43:21,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:21,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:21,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233555064] [2021-03-11 14:43:21,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:21,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:21,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:21,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:21,686 INFO L87 Difference]: Start difference. First operand 1579 states and 7077 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:22,101 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:43:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:22,138 INFO L93 Difference]: Finished difference Result 2959 states and 11732 transitions. [2021-03-11 14:43:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:22,142 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:22,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:22,149 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:43:22,150 INFO L226 Difference]: Without dead ends: 2937 [2021-03-11 14:43:22,150 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 679.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:22,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-03-11 14:43:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1574. [2021-03-11 14:43:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.490146217418944) internal successors, (7063), 1573 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7063 transitions. [2021-03-11 14:43:22,200 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7063 transitions. Word has length 28 [2021-03-11 14:43:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:22,200 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7063 transitions. [2021-03-11 14:43:22,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7063 transitions. [2021-03-11 14:43:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:22,203 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:22,203 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:22,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable761 [2021-03-11 14:43:22,203 INFO L428 AbstractCegarLoop]: === Iteration 763 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:22,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:22,203 INFO L82 PathProgramCache]: Analyzing trace with hash -802928200, now seen corresponding path program 755 times [2021-03-11 14:43:22,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:22,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524315004] [2021-03-11 14:43:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:22,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:22,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:22,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:22,233 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:22,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:22,261 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:22,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:22,300 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:22,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:22,355 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:22,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:22,421 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:22,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:22,500 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:22,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:22,591 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:22,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:22,697 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:22,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:22,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524315004] [2021-03-11 14:43:22,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:22,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:22,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546393456] [2021-03-11 14:43:22,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:22,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:22,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:22,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:22,804 INFO L87 Difference]: Start difference. First operand 1574 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:23,195 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:23,230 INFO L93 Difference]: Finished difference Result 2960 states and 11735 transitions. [2021-03-11 14:43:23,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:23,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:23,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:23,241 INFO L225 Difference]: With dead ends: 2960 [2021-03-11 14:43:23,241 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:43:23,241 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 717.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:23,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:43:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1580. [2021-03-11 14:43:23,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.480050664977834) internal successors, (7074), 1579 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7074 transitions. [2021-03-11 14:43:23,291 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7074 transitions. Word has length 28 [2021-03-11 14:43:23,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:23,291 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7074 transitions. [2021-03-11 14:43:23,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7074 transitions. [2021-03-11 14:43:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:23,294 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:23,294 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:23,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable762 [2021-03-11 14:43:23,294 INFO L428 AbstractCegarLoop]: === Iteration 764 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:23,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:23,294 INFO L82 PathProgramCache]: Analyzing trace with hash 115021990, now seen corresponding path program 756 times [2021-03-11 14:43:23,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:23,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166003626] [2021-03-11 14:43:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:23,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:23,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:23,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:23,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:23,324 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:23,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:23,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:23,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:23,386 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:23,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:23,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:23,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:23,499 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:23,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:23,570 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:23,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:23,657 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:23,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:23,769 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:23,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:23,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166003626] [2021-03-11 14:43:23,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:23,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:23,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979442913] [2021-03-11 14:43:23,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:23,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:23,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:23,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:23,867 INFO L87 Difference]: Start difference. First operand 1580 states and 7074 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:24,328 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:24,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:24,370 INFO L93 Difference]: Finished difference Result 2961 states and 11731 transitions. [2021-03-11 14:43:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:24,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:24,381 INFO L225 Difference]: With dead ends: 2961 [2021-03-11 14:43:24,381 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:43:24,381 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 688.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:43:24,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1569. [2021-03-11 14:43:24,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.495535714285714) internal successors, (7049), 1568 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7049 transitions. [2021-03-11 14:43:24,432 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7049 transitions. Word has length 28 [2021-03-11 14:43:24,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:24,432 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7049 transitions. [2021-03-11 14:43:24,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:24,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7049 transitions. [2021-03-11 14:43:24,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:24,434 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:24,434 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:24,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable763 [2021-03-11 14:43:24,435 INFO L428 AbstractCegarLoop]: === Iteration 765 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:24,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:24,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1539753370, now seen corresponding path program 757 times [2021-03-11 14:43:24,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:24,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131350178] [2021-03-11 14:43:24,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:24,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:24,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:24,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:24,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:24,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:24,494 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:24,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:24,534 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:24,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:24,587 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:24,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:24,653 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:24,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:24,730 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:24,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:24,868 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-03-11 14:43:24,871 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:24,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:24,981 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:24,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:25,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131350178] [2021-03-11 14:43:25,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:25,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:25,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054400993] [2021-03-11 14:43:25,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:25,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:25,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:25,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:25,076 INFO L87 Difference]: Start difference. First operand 1569 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:25,497 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:43:25,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:25,532 INFO L93 Difference]: Finished difference Result 2969 states and 11757 transitions. [2021-03-11 14:43:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:25,535 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:25,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:25,543 INFO L225 Difference]: With dead ends: 2969 [2021-03-11 14:43:25,543 INFO L226 Difference]: Without dead ends: 2954 [2021-03-11 14:43:25,543 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 749.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:25,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-03-11 14:43:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1581. [2021-03-11 14:43:25,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.482278481012658) internal successors, (7082), 1580 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7082 transitions. [2021-03-11 14:43:25,595 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7082 transitions. Word has length 28 [2021-03-11 14:43:25,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:25,596 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7082 transitions. [2021-03-11 14:43:25,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7082 transitions. [2021-03-11 14:43:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:25,598 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:25,598 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:25,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable764 [2021-03-11 14:43:25,598 INFO L428 AbstractCegarLoop]: === Iteration 766 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:25,599 INFO L82 PathProgramCache]: Analyzing trace with hash -50348374, now seen corresponding path program 758 times [2021-03-11 14:43:25,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:25,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53768134] [2021-03-11 14:43:25,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:25,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:25,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:25,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:25,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:25,626 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:25,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:25,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:25,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:25,679 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:25,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:25,722 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:25,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:25,774 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:25,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:25,837 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:25,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:25,967 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-03-11 14:43:25,972 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:25,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:26,084 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:26,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:26,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53768134] [2021-03-11 14:43:26,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:26,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:26,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009739941] [2021-03-11 14:43:26,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:26,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:26,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:26,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:26,178 INFO L87 Difference]: Start difference. First operand 1581 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:26,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:26,572 INFO L93 Difference]: Finished difference Result 2974 states and 11761 transitions. [2021-03-11 14:43:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:26,576 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:26,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:26,583 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:43:26,583 INFO L226 Difference]: Without dead ends: 2948 [2021-03-11 14:43:26,583 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 623.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:26,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2021-03-11 14:43:26,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 1575. [2021-03-11 14:43:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.48856416772554) internal successors, (7065), 1574 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7065 transitions. [2021-03-11 14:43:26,633 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7065 transitions. Word has length 28 [2021-03-11 14:43:26,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:26,634 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7065 transitions. [2021-03-11 14:43:26,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:26,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7065 transitions. [2021-03-11 14:43:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:26,636 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:26,636 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:26,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable765 [2021-03-11 14:43:26,637 INFO L428 AbstractCegarLoop]: === Iteration 767 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:26,637 INFO L82 PathProgramCache]: Analyzing trace with hash -464042214, now seen corresponding path program 759 times [2021-03-11 14:43:26,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:26,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073799176] [2021-03-11 14:43:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:26,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:26,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:26,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:26,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:26,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:26,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:26,754 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:26,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:26,807 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:26,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:26,870 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:26,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:26,940 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:26,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:27,024 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:27,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:27,127 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:27,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:27,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073799176] [2021-03-11 14:43:27,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:27,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:27,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109427121] [2021-03-11 14:43:27,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:27,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:27,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:27,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:27,220 INFO L87 Difference]: Start difference. First operand 1575 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:27,574 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:43:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:27,608 INFO L93 Difference]: Finished difference Result 2965 states and 11744 transitions. [2021-03-11 14:43:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:27,612 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:27,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:27,619 INFO L225 Difference]: With dead ends: 2965 [2021-03-11 14:43:27,619 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:43:27,619 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 673.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:43:27,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1580. [2021-03-11 14:43:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.480050664977834) internal successors, (7074), 1579 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7074 transitions. [2021-03-11 14:43:27,668 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7074 transitions. Word has length 28 [2021-03-11 14:43:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:27,669 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7074 transitions. [2021-03-11 14:43:27,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:27,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7074 transitions. [2021-03-11 14:43:27,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:27,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:27,671 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:27,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable766 [2021-03-11 14:43:27,671 INFO L428 AbstractCegarLoop]: === Iteration 768 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:27,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:27,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1198610474, now seen corresponding path program 760 times [2021-03-11 14:43:27,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:27,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605321355] [2021-03-11 14:43:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:27,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:27,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:27,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:27,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:27,704 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:27,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:27,732 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:27,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:27,771 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:27,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:27,824 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:27,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:27,886 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:27,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:27,960 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:27,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:28,043 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:28,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:28,148 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:28,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:28,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:28,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605321355] [2021-03-11 14:43:28,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:28,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:28,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213206111] [2021-03-11 14:43:28,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:28,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:28,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:28,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:28,242 INFO L87 Difference]: Start difference. First operand 1580 states and 7074 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:28,671 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:43:28,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:28,708 INFO L93 Difference]: Finished difference Result 2967 states and 11743 transitions. [2021-03-11 14:43:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:28,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:28,717 INFO L225 Difference]: With dead ends: 2967 [2021-03-11 14:43:28,717 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:43:28,717 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 665.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:28,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:43:28,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1575. [2021-03-11 14:43:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.485387547649301) internal successors, (7060), 1574 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:28,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7060 transitions. [2021-03-11 14:43:28,766 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7060 transitions. Word has length 28 [2021-03-11 14:43:28,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:28,766 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7060 transitions. [2021-03-11 14:43:28,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:28,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7060 transitions. [2021-03-11 14:43:28,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:28,768 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:28,768 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:28,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable767 [2021-03-11 14:43:28,768 INFO L428 AbstractCegarLoop]: === Iteration 769 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:28,768 INFO L82 PathProgramCache]: Analyzing trace with hash -47722598, now seen corresponding path program 761 times [2021-03-11 14:43:28,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:28,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346348660] [2021-03-11 14:43:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:28,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:28,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:28,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:28,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:28,798 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:28,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:28,824 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:28,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:28,860 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:28,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:28,909 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:28,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:28,972 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:29,045 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:29,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:29,133 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:29,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:29,239 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:29,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:29,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346348660] [2021-03-11 14:43:29,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:29,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:29,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206653238] [2021-03-11 14:43:29,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:29,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:29,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:29,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:29,333 INFO L87 Difference]: Start difference. First operand 1575 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:29,672 INFO L93 Difference]: Finished difference Result 2978 states and 11765 transitions. [2021-03-11 14:43:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:29,683 INFO L225 Difference]: With dead ends: 2978 [2021-03-11 14:43:29,683 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:43:29,684 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 605.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:29,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:43:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1583. [2021-03-11 14:43:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.471554993678888) internal successors, (7074), 1582 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7074 transitions. [2021-03-11 14:43:29,734 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7074 transitions. Word has length 28 [2021-03-11 14:43:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:29,734 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7074 transitions. [2021-03-11 14:43:29,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7074 transitions. [2021-03-11 14:43:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:29,736 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:29,736 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:29,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable768 [2021-03-11 14:43:29,736 INFO L428 AbstractCegarLoop]: === Iteration 770 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:29,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:29,736 INFO L82 PathProgramCache]: Analyzing trace with hash 125525094, now seen corresponding path program 762 times [2021-03-11 14:43:29,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:29,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045398058] [2021-03-11 14:43:29,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:29,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:29,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:29,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:29,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:29,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:29,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:29,793 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:29,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:29,832 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:29,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:29,885 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:29,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:29,948 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:29,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:30,025 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:30,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:30,124 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:30,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:30,234 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:30,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:30,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045398058] [2021-03-11 14:43:30,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:30,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:30,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716715718] [2021-03-11 14:43:30,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:30,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:30,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:30,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:30,327 INFO L87 Difference]: Start difference. First operand 1583 states and 7074 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:30,784 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:43:30,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:30,832 INFO L93 Difference]: Finished difference Result 2975 states and 11752 transitions. [2021-03-11 14:43:30,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:30,835 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:30,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:30,843 INFO L225 Difference]: With dead ends: 2975 [2021-03-11 14:43:30,843 INFO L226 Difference]: Without dead ends: 2944 [2021-03-11 14:43:30,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 703.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-03-11 14:43:30,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1569. [2021-03-11 14:43:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.4917091836734695) internal successors, (7043), 1568 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7043 transitions. [2021-03-11 14:43:30,893 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7043 transitions. Word has length 28 [2021-03-11 14:43:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:30,893 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7043 transitions. [2021-03-11 14:43:30,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7043 transitions. [2021-03-11 14:43:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:30,895 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:30,895 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:30,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable769 [2021-03-11 14:43:30,895 INFO L428 AbstractCegarLoop]: === Iteration 771 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:30,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:30,896 INFO L82 PathProgramCache]: Analyzing trace with hash -784547768, now seen corresponding path program 763 times [2021-03-11 14:43:30,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:30,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948438808] [2021-03-11 14:43:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:30,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:30,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:30,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:30,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:30,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:30,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:30,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:30,996 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:30,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:31,052 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:31,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:31,122 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:31,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:31,200 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:31,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:31,334 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:31,337 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:31,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:31,439 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:31,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:31,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948438808] [2021-03-11 14:43:31,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:31,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:31,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409335537] [2021-03-11 14:43:31,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:31,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:31,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:31,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:31,550 INFO L87 Difference]: Start difference. First operand 1569 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:32,012 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:32,047 INFO L93 Difference]: Finished difference Result 2976 states and 11770 transitions. [2021-03-11 14:43:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:32,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:32,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:32,059 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:43:32,059 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:43:32,059 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 774.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:43:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1583. [2021-03-11 14:43:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.47661188369153) internal successors, (7082), 1582 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7082 transitions. [2021-03-11 14:43:32,110 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7082 transitions. Word has length 28 [2021-03-11 14:43:32,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:32,110 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7082 transitions. [2021-03-11 14:43:32,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7082 transitions. [2021-03-11 14:43:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:32,113 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:32,113 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:32,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable770 [2021-03-11 14:43:32,113 INFO L428 AbstractCegarLoop]: === Iteration 772 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:32,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:32,113 INFO L82 PathProgramCache]: Analyzing trace with hash -39845270, now seen corresponding path program 764 times [2021-03-11 14:43:32,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:32,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290547228] [2021-03-11 14:43:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:32,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:32,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:32,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:32,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:32,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:32,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:32,176 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:32,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:32,218 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:32,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:32,276 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:32,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:32,346 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:32,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:32,428 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:43:32,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:43:32,573 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:32,576 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:32,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:32,684 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:32,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:32,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290547228] [2021-03-11 14:43:32,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:32,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:32,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267730915] [2021-03-11 14:43:32,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:32,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:32,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:32,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:32,784 INFO L87 Difference]: Start difference. First operand 1583 states and 7082 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:33,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:33,170 INFO L93 Difference]: Finished difference Result 2980 states and 11771 transitions. [2021-03-11 14:43:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:33,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:33,181 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:43:33,181 INFO L226 Difference]: Without dead ends: 2953 [2021-03-11 14:43:33,181 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 711.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-03-11 14:43:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1576. [2021-03-11 14:43:33,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.483809523809524) internal successors, (7062), 1575 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7062 transitions. [2021-03-11 14:43:33,232 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7062 transitions. Word has length 28 [2021-03-11 14:43:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:33,232 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7062 transitions. [2021-03-11 14:43:33,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7062 transitions. [2021-03-11 14:43:33,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:33,235 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:33,235 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:33,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable771 [2021-03-11 14:43:33,235 INFO L428 AbstractCegarLoop]: === Iteration 773 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:33,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:33,235 INFO L82 PathProgramCache]: Analyzing trace with hash 291163388, now seen corresponding path program 765 times [2021-03-11 14:43:33,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:33,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041462954] [2021-03-11 14:43:33,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:33,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:33,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:33,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:33,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:33,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:33,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:33,303 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:33,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:33,339 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:33,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:33,387 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:33,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:33,446 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:33,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:33,515 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:33,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:33,600 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:33,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:33,702 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:33,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:33,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041462954] [2021-03-11 14:43:33,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:33,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:33,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560853430] [2021-03-11 14:43:33,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:33,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:33,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:33,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:33,797 INFO L87 Difference]: Start difference. First operand 1576 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:34,191 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:34,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:34,224 INFO L93 Difference]: Finished difference Result 2972 states and 11756 transitions. [2021-03-11 14:43:34,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:34,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:34,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:34,235 INFO L225 Difference]: With dead ends: 2972 [2021-03-11 14:43:34,235 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:43:34,236 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 668.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:34,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:43:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1582. [2021-03-11 14:43:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.473750790638836) internal successors, (7073), 1581 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:34,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7073 transitions. [2021-03-11 14:43:34,286 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7073 transitions. Word has length 28 [2021-03-11 14:43:34,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:34,286 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7073 transitions. [2021-03-11 14:43:34,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7073 transitions. [2021-03-11 14:43:34,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:34,288 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:34,288 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:34,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable772 [2021-03-11 14:43:34,288 INFO L428 AbstractCegarLoop]: === Iteration 774 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:34,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1209113578, now seen corresponding path program 766 times [2021-03-11 14:43:34,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:34,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709844276] [2021-03-11 14:43:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:34,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:34,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:34,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:34,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:34,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:34,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:34,350 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:34,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:34,390 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:34,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:34,444 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:34,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:34,509 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:34,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:34,589 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:34,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:34,678 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:34,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:34,779 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:34,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:34,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709844276] [2021-03-11 14:43:34,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:34,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:34,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415667751] [2021-03-11 14:43:34,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:34,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:34,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:34,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:34,866 INFO L87 Difference]: Start difference. First operand 1582 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:35,364 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:35,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:35,408 INFO L93 Difference]: Finished difference Result 2973 states and 11752 transitions. [2021-03-11 14:43:35,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:35,412 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:35,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:35,419 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:43:35,419 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:43:35,420 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 694.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:35,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:43:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1576. [2021-03-11 14:43:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.48) internal successors, (7056), 1575 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7056 transitions. [2021-03-11 14:43:35,470 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7056 transitions. Word has length 28 [2021-03-11 14:43:35,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:35,470 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7056 transitions. [2021-03-11 14:43:35,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:35,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7056 transitions. [2021-03-11 14:43:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:35,472 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:35,472 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:35,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable773 [2021-03-11 14:43:35,472 INFO L428 AbstractCegarLoop]: === Iteration 775 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:35,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:35,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1648160452, now seen corresponding path program 767 times [2021-03-11 14:43:35,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:35,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784320922] [2021-03-11 14:43:35,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:35,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:35,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:35,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:35,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:35,504 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:35,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:35,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:35,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:35,572 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:35,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:35,625 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:35,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:35,693 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:35,773 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:35,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:35,872 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:43:35,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:43:35,985 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:35,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:36,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784320922] [2021-03-11 14:43:36,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:36,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:36,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126502901] [2021-03-11 14:43:36,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:36,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:36,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:36,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:36,086 INFO L87 Difference]: Start difference. First operand 1576 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:36,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:36,458 INFO L93 Difference]: Finished difference Result 2982 states and 11769 transitions. [2021-03-11 14:43:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:36,461 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:36,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:36,468 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:43:36,468 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:43:36,468 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 649.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:43:36,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1584. [2021-03-11 14:43:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.466203411244472) internal successors, (7070), 1583 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:36,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7070 transitions. [2021-03-11 14:43:36,516 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7070 transitions. Word has length 28 [2021-03-11 14:43:36,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:36,516 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7070 transitions. [2021-03-11 14:43:36,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:36,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7070 transitions. [2021-03-11 14:43:36,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:36,519 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:36,519 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:36,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable774 [2021-03-11 14:43:36,519 INFO L428 AbstractCegarLoop]: === Iteration 776 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:36,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:36,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1474912760, now seen corresponding path program 768 times [2021-03-11 14:43:36,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:36,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697155477] [2021-03-11 14:43:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:36,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:36,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:36,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:36,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:36,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:36,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:36,572 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:36,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:36,606 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:36,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:36,656 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:36,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:36,718 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:36,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:36,795 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:36,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:36,888 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:36,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:36,992 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:36,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:37,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697155477] [2021-03-11 14:43:37,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:37,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:37,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403056144] [2021-03-11 14:43:37,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:37,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:37,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:37,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:37,087 INFO L87 Difference]: Start difference. First operand 1584 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:37,485 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:37,536 INFO L93 Difference]: Finished difference Result 2979 states and 11756 transitions. [2021-03-11 14:43:37,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:37,539 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:37,546 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:43:37,546 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:43:37,546 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 681.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:37,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:43:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1563. [2021-03-11 14:43:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.498079385403329) internal successors, (7026), 1562 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:37,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7026 transitions. [2021-03-11 14:43:37,596 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7026 transitions. Word has length 28 [2021-03-11 14:43:37,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:37,596 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7026 transitions. [2021-03-11 14:43:37,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:37,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7026 transitions. [2021-03-11 14:43:37,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:37,599 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:37,599 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:37,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable775 [2021-03-11 14:43:37,599 INFO L428 AbstractCegarLoop]: === Iteration 777 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:37,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:37,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1292451582, now seen corresponding path program 769 times [2021-03-11 14:43:37,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:37,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226882164] [2021-03-11 14:43:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:37,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:37,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:37,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:37,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:37,630 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:37,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:37,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:37,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:37,698 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:37,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:37,751 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:37,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:37,816 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:37,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:37,895 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:37,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:37,985 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:37,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:38,089 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:38,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:38,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226882164] [2021-03-11 14:43:38,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:38,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:38,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335263293] [2021-03-11 14:43:38,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:38,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:38,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:38,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:38,181 INFO L87 Difference]: Start difference. First operand 1563 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:38,683 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:38,713 INFO L93 Difference]: Finished difference Result 2948 states and 11716 transitions. [2021-03-11 14:43:38,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:38,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:38,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:38,725 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:43:38,725 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:43:38,725 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 701.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:38,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:43:38,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1578. [2021-03-11 14:43:38,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.488268864933418) internal successors, (7078), 1577 states have internal predecessors, (7078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:38,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7078 transitions. [2021-03-11 14:43:38,775 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7078 transitions. Word has length 28 [2021-03-11 14:43:38,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:38,775 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7078 transitions. [2021-03-11 14:43:38,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7078 transitions. [2021-03-11 14:43:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:38,777 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:38,777 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:38,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable776 [2021-03-11 14:43:38,778 INFO L428 AbstractCegarLoop]: === Iteration 778 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:38,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:38,778 INFO L82 PathProgramCache]: Analyzing trace with hash -547749084, now seen corresponding path program 770 times [2021-03-11 14:43:38,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:38,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292475550] [2021-03-11 14:43:38,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:38,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:38,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:38,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:38,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:38,808 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:38,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:38,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:38,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:38,874 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:38,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:38,928 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:38,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:38,995 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:38,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:39,073 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:39,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:39,165 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:39,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:39,276 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:39,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:39,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292475550] [2021-03-11 14:43:39,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:39,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:39,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673493503] [2021-03-11 14:43:39,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:39,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:39,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:39,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:39,375 INFO L87 Difference]: Start difference. First operand 1578 states and 7078 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:39,778 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:39,822 INFO L93 Difference]: Finished difference Result 2949 states and 11713 transitions. [2021-03-11 14:43:39,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:39,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:39,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:39,833 INFO L225 Difference]: With dead ends: 2949 [2021-03-11 14:43:39,833 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:43:39,833 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 709.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:43:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1573. [2021-03-11 14:43:39,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.493638676844784) internal successors, (7064), 1572 states have internal predecessors, (7064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:39,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7064 transitions. [2021-03-11 14:43:39,883 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7064 transitions. Word has length 28 [2021-03-11 14:43:39,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:39,883 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7064 transitions. [2021-03-11 14:43:39,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:39,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7064 transitions. [2021-03-11 14:43:39,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:39,886 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:39,886 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:39,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable777 [2021-03-11 14:43:39,886 INFO L428 AbstractCegarLoop]: === Iteration 779 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:39,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1929430334, now seen corresponding path program 771 times [2021-03-11 14:43:39,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:39,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58886610] [2021-03-11 14:43:39,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:39,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:39,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:39,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:39,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:39,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:39,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:39,947 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:39,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:39,986 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:39,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:40,042 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:40,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:40,110 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:40,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:40,190 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:43:40,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:43:40,342 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:40,345 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:40,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:40,449 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:40,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:40,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58886610] [2021-03-11 14:43:40,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:40,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:40,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478550793] [2021-03-11 14:43:40,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:40,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:40,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:40,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:40,543 INFO L87 Difference]: Start difference. First operand 1573 states and 7064 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:40,983 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:41,020 INFO L93 Difference]: Finished difference Result 2950 states and 11715 transitions. [2021-03-11 14:43:41,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:41,024 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:41,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:41,032 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:43:41,032 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:43:41,032 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 775.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:41,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:43:41,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1578. [2021-03-11 14:43:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.485098287888396) internal successors, (7073), 1577 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7073 transitions. [2021-03-11 14:43:41,083 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7073 transitions. Word has length 28 [2021-03-11 14:43:41,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:41,083 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7073 transitions. [2021-03-11 14:43:41,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:41,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7073 transitions. [2021-03-11 14:43:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:41,086 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:41,086 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:41,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable778 [2021-03-11 14:43:41,086 INFO L428 AbstractCegarLoop]: === Iteration 780 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:41,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:41,086 INFO L82 PathProgramCache]: Analyzing trace with hash -131429468, now seen corresponding path program 772 times [2021-03-11 14:43:41,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:41,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111483306] [2021-03-11 14:43:41,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:41,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:41,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:41,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:41,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:41,119 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:41,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:41,150 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:41,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:41,191 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:41,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:41,248 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:41,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:41,316 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:41,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:41,400 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:43:41,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:43:41,571 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:41,574 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:41,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:41,693 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:41,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:41,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111483306] [2021-03-11 14:43:41,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:41,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:41,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331565207] [2021-03-11 14:43:41,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:41,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:41,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:41,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:41,795 INFO L87 Difference]: Start difference. First operand 1578 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:42,247 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:43:42,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:42,291 INFO L93 Difference]: Finished difference Result 2953 states and 11716 transitions. [2021-03-11 14:43:42,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:42,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:42,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:42,303 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:43:42,303 INFO L226 Difference]: Without dead ends: 2930 [2021-03-11 14:43:42,303 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 844.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:42,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-03-11 14:43:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1573. [2021-03-11 14:43:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.490458015267175) internal successors, (7059), 1572 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:42,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7059 transitions. [2021-03-11 14:43:42,354 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7059 transitions. Word has length 28 [2021-03-11 14:43:42,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:42,354 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7059 transitions. [2021-03-11 14:43:42,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:42,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7059 transitions. [2021-03-11 14:43:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:42,357 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:42,357 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:42,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable779 [2021-03-11 14:43:42,357 INFO L428 AbstractCegarLoop]: === Iteration 781 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:42,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:42,358 INFO L82 PathProgramCache]: Analyzing trace with hash -9893506, now seen corresponding path program 773 times [2021-03-11 14:43:42,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:42,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324990337] [2021-03-11 14:43:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:42,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:42,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:42,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:42,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:42,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:42,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:42,421 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:42,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:42,462 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:42,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:42,519 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:42,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:42,589 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:42,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:42,670 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:42,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:42,758 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:42,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:42,862 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:42,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:42,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324990337] [2021-03-11 14:43:42,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:42,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:42,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446232897] [2021-03-11 14:43:42,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:42,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:42,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:42,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:42,969 INFO L87 Difference]: Start difference. First operand 1573 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:43,414 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:43,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:43,453 INFO L93 Difference]: Finished difference Result 2953 states and 11717 transitions. [2021-03-11 14:43:43,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:43,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:43,465 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:43:43,465 INFO L226 Difference]: Without dead ends: 2937 [2021-03-11 14:43:43,465 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 736.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:43,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-03-11 14:43:43,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1579. [2021-03-11 14:43:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.480354879594423) internal successors, (7070), 1578 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:43,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7070 transitions. [2021-03-11 14:43:43,516 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7070 transitions. Word has length 28 [2021-03-11 14:43:43,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:43,516 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7070 transitions. [2021-03-11 14:43:43,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7070 transitions. [2021-03-11 14:43:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:43,519 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:43,519 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:43,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable780 [2021-03-11 14:43:43,519 INFO L428 AbstractCegarLoop]: === Iteration 782 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:43,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:43,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1479511490, now seen corresponding path program 774 times [2021-03-11 14:43:43,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:43,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822768123] [2021-03-11 14:43:43,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:43,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:43,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:43,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:43,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:43,552 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:43,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:43,583 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:43,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:43,628 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:43,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:43,686 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:43,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:43,761 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:43,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:43,849 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:43,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:43,947 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:43,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:44,057 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:44,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:44,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822768123] [2021-03-11 14:43:44,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:44,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:44,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023243582] [2021-03-11 14:43:44,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:44,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:44,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:44,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:44,157 INFO L87 Difference]: Start difference. First operand 1579 states and 7070 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:44,551 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:43:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:44,592 INFO L93 Difference]: Finished difference Result 2955 states and 11715 transitions. [2021-03-11 14:43:44,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:44,603 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:43:44,603 INFO L226 Difference]: Without dead ends: 2926 [2021-03-11 14:43:44,603 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 762.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:44,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2021-03-11 14:43:44,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 1568. [2021-03-11 14:43:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.495851946394384) internal successors, (7045), 1567 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7045 transitions. [2021-03-11 14:43:44,652 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7045 transitions. Word has length 28 [2021-03-11 14:43:44,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:44,652 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7045 transitions. [2021-03-11 14:43:44,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:44,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7045 transitions. [2021-03-11 14:43:44,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:44,654 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:44,654 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:44,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable781 [2021-03-11 14:43:44,655 INFO L428 AbstractCegarLoop]: === Iteration 783 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:44,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:44,655 INFO L82 PathProgramCache]: Analyzing trace with hash -704706260, now seen corresponding path program 775 times [2021-03-11 14:43:44,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:44,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171106465] [2021-03-11 14:43:44,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:44,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:44,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:44,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:44,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:44,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:44,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:44,712 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:44,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:44,747 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:44,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:44,798 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:44,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:44,859 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:44,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:44,931 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:44,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:45,034 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:45,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:45,151 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:45,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:45,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171106465] [2021-03-11 14:43:45,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:45,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:45,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420603563] [2021-03-11 14:43:45,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:45,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:45,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:45,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:45,251 INFO L87 Difference]: Start difference. First operand 1568 states and 7045 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:45,723 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:43:45,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:45,757 INFO L93 Difference]: Finished difference Result 2947 states and 11709 transitions. [2021-03-11 14:43:45,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:45,768 INFO L225 Difference]: With dead ends: 2947 [2021-03-11 14:43:45,768 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:43:45,768 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 716.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:43:45,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1578. [2021-03-11 14:43:45,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.485098287888396) internal successors, (7073), 1577 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7073 transitions. [2021-03-11 14:43:45,819 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7073 transitions. Word has length 28 [2021-03-11 14:43:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:45,819 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7073 transitions. [2021-03-11 14:43:45,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7073 transitions. [2021-03-11 14:43:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:45,822 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:45,822 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:45,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable782 [2021-03-11 14:43:45,822 INFO L428 AbstractCegarLoop]: === Iteration 784 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:45,822 INFO L82 PathProgramCache]: Analyzing trace with hash 39996238, now seen corresponding path program 776 times [2021-03-11 14:43:45,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:45,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293337494] [2021-03-11 14:43:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:45,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:45,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:45,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:45,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:45,855 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:45,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:45,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:45,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:45,929 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:45,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:45,987 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:45,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:46,060 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:46,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:46,148 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:46,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:46,249 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:46,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:46,362 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:46,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:46,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:46,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293337494] [2021-03-11 14:43:46,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:46,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:46,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640954773] [2021-03-11 14:43:46,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:46,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:46,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:46,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:46,471 INFO L87 Difference]: Start difference. First operand 1578 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:46,927 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:43:46,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:46,962 INFO L93 Difference]: Finished difference Result 2948 states and 11706 transitions. [2021-03-11 14:43:46,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:46,966 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:46,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:46,972 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:43:46,972 INFO L226 Difference]: Without dead ends: 2927 [2021-03-11 14:43:46,972 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 752.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2021-03-11 14:43:47,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 1573. [2021-03-11 14:43:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.490458015267175) internal successors, (7059), 1572 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:47,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7059 transitions. [2021-03-11 14:43:47,021 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7059 transitions. Word has length 28 [2021-03-11 14:43:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:47,021 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7059 transitions. [2021-03-11 14:43:47,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7059 transitions. [2021-03-11 14:43:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:47,023 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:47,023 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:47,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable783 [2021-03-11 14:43:47,024 INFO L428 AbstractCegarLoop]: === Iteration 785 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:47,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:47,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1981945854, now seen corresponding path program 777 times [2021-03-11 14:43:47,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:47,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257665491] [2021-03-11 14:43:47,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:47,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:47,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:47,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:47,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:47,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:47,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:47,084 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:47,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:47,122 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:47,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:47,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:47,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:47,240 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:47,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:47,316 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:47,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:47,399 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:47,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:47,498 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:47,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:47,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257665491] [2021-03-11 14:43:47,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:47,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:47,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224603607] [2021-03-11 14:43:47,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:47,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:47,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:47,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:47,592 INFO L87 Difference]: Start difference. First operand 1573 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:48,012 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:48,045 INFO L93 Difference]: Finished difference Result 2948 states and 11706 transitions. [2021-03-11 14:43:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:48,049 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:48,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:48,057 INFO L225 Difference]: With dead ends: 2948 [2021-03-11 14:43:48,058 INFO L226 Difference]: Without dead ends: 2933 [2021-03-11 14:43:48,058 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 684.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-03-11 14:43:48,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1578. [2021-03-11 14:43:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.481927710843373) internal successors, (7068), 1577 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:48,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7068 transitions. [2021-03-11 14:43:48,109 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7068 transitions. Word has length 28 [2021-03-11 14:43:48,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:48,109 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7068 transitions. [2021-03-11 14:43:48,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7068 transitions. [2021-03-11 14:43:48,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:48,111 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:48,111 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:48,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable784 [2021-03-11 14:43:48,111 INFO L428 AbstractCegarLoop]: === Iteration 786 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:48,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:48,112 INFO L82 PathProgramCache]: Analyzing trace with hash -650368754, now seen corresponding path program 778 times [2021-03-11 14:43:48,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:48,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6721210] [2021-03-11 14:43:48,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:48,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:48,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:48,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:48,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:48,143 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:48,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:48,172 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:48,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:48,213 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:48,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:48,269 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:48,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:48,339 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:48,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:48,420 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:48,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:48,516 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:48,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:48,631 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:48,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6721210] [2021-03-11 14:43:48,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:48,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:48,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531619915] [2021-03-11 14:43:48,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:48,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:48,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:48,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:48,733 INFO L87 Difference]: Start difference. First operand 1578 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:49,209 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:49,254 INFO L93 Difference]: Finished difference Result 2950 states and 11705 transitions. [2021-03-11 14:43:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:49,258 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:49,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:49,265 INFO L225 Difference]: With dead ends: 2950 [2021-03-11 14:43:49,265 INFO L226 Difference]: Without dead ends: 2928 [2021-03-11 14:43:49,265 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 741.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:49,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2021-03-11 14:43:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 1573. [2021-03-11 14:43:49,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.487277353689567) internal successors, (7054), 1572 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7054 transitions. [2021-03-11 14:43:49,315 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7054 transitions. Word has length 28 [2021-03-11 14:43:49,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:49,315 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7054 transitions. [2021-03-11 14:43:49,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7054 transitions. [2021-03-11 14:43:49,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:49,317 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:49,317 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:49,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable785 [2021-03-11 14:43:49,318 INFO L428 AbstractCegarLoop]: === Iteration 787 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:49,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:49,318 INFO L82 PathProgramCache]: Analyzing trace with hash 42622014, now seen corresponding path program 779 times [2021-03-11 14:43:49,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:49,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392277410] [2021-03-11 14:43:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:49,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:49,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:49,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:49,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:49,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:49,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:49,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:49,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:49,448 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:49,504 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:49,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:49,574 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:49,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:49,659 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:49,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:49,754 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:49,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:49,868 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:49,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:49,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392277410] [2021-03-11 14:43:49,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:49,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:49,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773662975] [2021-03-11 14:43:49,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:49,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:49,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:49,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:49,999 INFO L87 Difference]: Start difference. First operand 1573 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:50,441 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:43:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:50,475 INFO L93 Difference]: Finished difference Result 2951 states and 11708 transitions. [2021-03-11 14:43:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:50,485 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:43:50,485 INFO L226 Difference]: Without dead ends: 2935 [2021-03-11 14:43:50,485 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 781.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-03-11 14:43:50,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1579. [2021-03-11 14:43:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.477186311787072) internal successors, (7065), 1578 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7065 transitions. [2021-03-11 14:43:50,534 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7065 transitions. Word has length 28 [2021-03-11 14:43:50,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:50,534 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7065 transitions. [2021-03-11 14:43:50,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:50,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7065 transitions. [2021-03-11 14:43:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:50,537 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:50,537 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:50,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable786 [2021-03-11 14:43:50,537 INFO L428 AbstractCegarLoop]: === Iteration 788 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:50,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:50,537 INFO L82 PathProgramCache]: Analyzing trace with hash 960572204, now seen corresponding path program 780 times [2021-03-11 14:43:50,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:50,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447784260] [2021-03-11 14:43:50,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:50,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:50,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:50,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:50,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:50,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:50,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:50,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:50,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:50,634 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:50,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:50,694 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:50,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:50,769 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:50,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:50,855 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:50,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:50,954 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:50,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:51,069 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:51,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:51,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447784260] [2021-03-11 14:43:51,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:51,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:51,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248082429] [2021-03-11 14:43:51,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:51,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:51,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:51,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:51,178 INFO L87 Difference]: Start difference. First operand 1579 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:51,565 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:43:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:51,622 INFO L93 Difference]: Finished difference Result 2952 states and 11704 transitions. [2021-03-11 14:43:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:51,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:51,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:51,634 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:43:51,634 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:43:51,634 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 762.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:51,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:43:51,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1568. [2021-03-11 14:43:51,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.492661135928526) internal successors, (7040), 1567 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:51,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7040 transitions. [2021-03-11 14:43:51,684 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7040 transitions. Word has length 28 [2021-03-11 14:43:51,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:51,684 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7040 transitions. [2021-03-11 14:43:51,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7040 transitions. [2021-03-11 14:43:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:51,687 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:51,687 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:51,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable787 [2021-03-11 14:43:51,687 INFO L428 AbstractCegarLoop]: === Iteration 789 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:51,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:51,687 INFO L82 PathProgramCache]: Analyzing trace with hash -683700052, now seen corresponding path program 781 times [2021-03-11 14:43:51,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:51,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722672343] [2021-03-11 14:43:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:51,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:51,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:51,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:51,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:51,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:51,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:51,751 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:51,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:51,793 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:51,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:51,851 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:51,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:51,923 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:51,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:52,006 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:43:52,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:43:52,162 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:52,166 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:52,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:52,283 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:52,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:52,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722672343] [2021-03-11 14:43:52,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:52,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:52,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434333453] [2021-03-11 14:43:52,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:52,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:52,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:52,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:52,387 INFO L87 Difference]: Start difference. First operand 1568 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:52,868 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:52,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:52,900 INFO L93 Difference]: Finished difference Result 2952 states and 11715 transitions. [2021-03-11 14:43:52,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:52,903 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:52,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:52,910 INFO L225 Difference]: With dead ends: 2952 [2021-03-11 14:43:52,910 INFO L226 Difference]: Without dead ends: 2937 [2021-03-11 14:43:52,911 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 823.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:52,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-03-11 14:43:52,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1578. [2021-03-11 14:43:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.481927710843373) internal successors, (7068), 1577 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7068 transitions. [2021-03-11 14:43:52,959 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7068 transitions. Word has length 28 [2021-03-11 14:43:52,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:52,959 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7068 transitions. [2021-03-11 14:43:52,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:52,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7068 transitions. [2021-03-11 14:43:52,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:52,962 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:52,962 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:52,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable788 [2021-03-11 14:43:52,962 INFO L428 AbstractCegarLoop]: === Iteration 790 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:52,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1550407442, now seen corresponding path program 782 times [2021-03-11 14:43:52,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:52,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207635437] [2021-03-11 14:43:52,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:52,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:52,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:52,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:52,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:52,991 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:52,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:53,018 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:53,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:53,056 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:53,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:53,112 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:53,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:53,185 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:53,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:53,273 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:43:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:43:53,432 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:43:53,435 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:53,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:53,546 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:53,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:53,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207635437] [2021-03-11 14:43:53,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:53,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:53,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230071855] [2021-03-11 14:43:53,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:53,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:53,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:53,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:53,644 INFO L87 Difference]: Start difference. First operand 1578 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:54,034 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:43:54,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:54,077 INFO L93 Difference]: Finished difference Result 2955 states and 11716 transitions. [2021-03-11 14:43:54,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:54,082 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:54,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:54,090 INFO L225 Difference]: With dead ends: 2955 [2021-03-11 14:43:54,090 INFO L226 Difference]: Without dead ends: 2932 [2021-03-11 14:43:54,090 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 820.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:54,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2021-03-11 14:43:54,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1573. [2021-03-11 14:43:54,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.487277353689567) internal successors, (7054), 1572 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7054 transitions. [2021-03-11 14:43:54,139 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7054 transitions. Word has length 28 [2021-03-11 14:43:54,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:54,139 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7054 transitions. [2021-03-11 14:43:54,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:54,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7054 transitions. [2021-03-11 14:43:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:54,142 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:54,142 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:54,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable789 [2021-03-11 14:43:54,142 INFO L428 AbstractCegarLoop]: === Iteration 791 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:54,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:54,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1218929854, now seen corresponding path program 783 times [2021-03-11 14:43:54,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:54,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589270640] [2021-03-11 14:43:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:54,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:54,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:54,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:54,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:54,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:54,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:54,206 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:54,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:54,255 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:54,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:54,314 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:54,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:54,385 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:54,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:54,472 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:54,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:54,573 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:54,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:54,693 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:54,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:54,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589270640] [2021-03-11 14:43:54,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:54,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:54,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646005668] [2021-03-11 14:43:54,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:54,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:54,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:54,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:54,800 INFO L87 Difference]: Start difference. First operand 1573 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:55,203 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:55,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:55,247 INFO L93 Difference]: Finished difference Result 2951 states and 11708 transitions. [2021-03-11 14:43:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:55,251 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:55,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:55,260 INFO L225 Difference]: With dead ends: 2951 [2021-03-11 14:43:55,260 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:43:55,260 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 790.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:55,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:43:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1578. [2021-03-11 14:43:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.478757133798351) internal successors, (7063), 1577 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7063 transitions. [2021-03-11 14:43:55,315 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7063 transitions. Word has length 28 [2021-03-11 14:43:55,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:55,315 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7063 transitions. [2021-03-11 14:43:55,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7063 transitions. [2021-03-11 14:43:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:55,318 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:55,318 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:55,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable790 [2021-03-11 14:43:55,318 INFO L428 AbstractCegarLoop]: === Iteration 792 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:55,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:55,318 INFO L82 PathProgramCache]: Analyzing trace with hash 443722834, now seen corresponding path program 784 times [2021-03-11 14:43:55,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:55,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842667295] [2021-03-11 14:43:55,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:55,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:55,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:55,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:55,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:55,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:55,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:55,381 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:55,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:55,421 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:55,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:55,480 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:55,551 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:55,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:55,637 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:55,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:55,733 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:55,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:55,840 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:55,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:55,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:55,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842667295] [2021-03-11 14:43:55,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:55,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:55,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492735545] [2021-03-11 14:43:55,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:55,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:55,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:55,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:55,935 INFO L87 Difference]: Start difference. First operand 1578 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:56,319 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:56,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:56,364 INFO L93 Difference]: Finished difference Result 2953 states and 11707 transitions. [2021-03-11 14:43:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:56,367 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:56,375 INFO L225 Difference]: With dead ends: 2953 [2021-03-11 14:43:56,376 INFO L226 Difference]: Without dead ends: 2931 [2021-03-11 14:43:56,376 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 735.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:56,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2021-03-11 14:43:56,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 1573. [2021-03-11 14:43:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.484096692111959) internal successors, (7049), 1572 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7049 transitions. [2021-03-11 14:43:56,425 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7049 transitions. Word has length 28 [2021-03-11 14:43:56,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:56,425 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7049 transitions. [2021-03-11 14:43:56,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:56,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7049 transitions. [2021-03-11 14:43:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:56,428 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:56,428 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:56,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable791 [2021-03-11 14:43:56,428 INFO L428 AbstractCegarLoop]: === Iteration 793 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:56,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:56,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1553033218, now seen corresponding path program 785 times [2021-03-11 14:43:56,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:56,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688652250] [2021-03-11 14:43:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:56,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:56,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:56,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:56,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:56,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:56,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:56,491 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:56,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:56,533 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:56,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:56,591 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:56,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:56,662 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:56,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:56,748 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:56,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:56,854 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:56,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:56,973 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:56,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:57,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688652250] [2021-03-11 14:43:57,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:57,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:57,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775893324] [2021-03-11 14:43:57,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:57,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:57,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:57,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:57,068 INFO L87 Difference]: Start difference. First operand 1573 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:57,547 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:43:57,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:57,584 INFO L93 Difference]: Finished difference Result 2959 states and 11721 transitions. [2021-03-11 14:43:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:57,588 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:57,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:57,595 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:43:57,595 INFO L226 Difference]: Without dead ends: 2941 [2021-03-11 14:43:57,596 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 780.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2021-03-11 14:43:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 1580. [2021-03-11 14:43:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.472450918302723) internal successors, (7062), 1579 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7062 transitions. [2021-03-11 14:43:57,646 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7062 transitions. Word has length 28 [2021-03-11 14:43:57,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:57,646 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7062 transitions. [2021-03-11 14:43:57,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:57,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7062 transitions. [2021-03-11 14:43:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:57,649 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:57,649 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:57,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable792 [2021-03-11 14:43:57,649 INFO L428 AbstractCegarLoop]: === Iteration 794 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash 981578412, now seen corresponding path program 786 times [2021-03-11 14:43:57,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:57,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606389230] [2021-03-11 14:43:57,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:57,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:57,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:57,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:57,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:57,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:57,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:57,711 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:57,753 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:57,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:57,811 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:57,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:57,891 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:43:57,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:43:57,977 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:43:57,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:43:58,074 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:58,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:58,181 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:58,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:58,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606389230] [2021-03-11 14:43:58,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:58,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:58,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607344323] [2021-03-11 14:43:58,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:58,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:58,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:58,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:58,274 INFO L87 Difference]: Start difference. First operand 1580 states and 7062 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:58,727 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:43:58,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:58,777 INFO L93 Difference]: Finished difference Result 2958 states and 11712 transitions. [2021-03-11 14:43:58,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:58,781 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:43:58,788 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:43:58,788 INFO L226 Difference]: Without dead ends: 2929 [2021-03-11 14:43:58,789 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 743.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:43:58,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-03-11 14:43:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1568. [2021-03-11 14:43:58,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.489470325462667) internal successors, (7035), 1567 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7035 transitions. [2021-03-11 14:43:58,838 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7035 transitions. Word has length 28 [2021-03-11 14:43:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:43:58,839 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7035 transitions. [2021-03-11 14:43:58,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7035 transitions. [2021-03-11 14:43:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:43:58,841 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:43:58,841 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:43:58,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable793 [2021-03-11 14:43:58,842 INFO L428 AbstractCegarLoop]: === Iteration 795 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:43:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:43:58,842 INFO L82 PathProgramCache]: Analyzing trace with hash 71505550, now seen corresponding path program 787 times [2021-03-11 14:43:58,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:43:58,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804249009] [2021-03-11 14:43:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:43:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:43:58,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:58,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:43:58,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:43:58,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:43:58,875 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:43:58,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:43:58,906 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:43:58,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:43:58,948 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:43:58,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:43:59,008 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:43:59,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:43:59,076 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:43:59,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:43:59,162 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:43:59,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:43:59,259 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:43:59,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:43:59,379 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:43:59,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:43:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:43:59,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804249009] [2021-03-11 14:43:59,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:43:59,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:43:59,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675953457] [2021-03-11 14:43:59,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:43:59,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:43:59,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:43:59,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:43:59,480 INFO L87 Difference]: Start difference. First operand 1568 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:43:59,950 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:43:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:43:59,989 INFO L93 Difference]: Finished difference Result 2959 states and 11729 transitions. [2021-03-11 14:43:59,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:43:59,994 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:43:59,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:00,002 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:44:00,002 INFO L226 Difference]: Without dead ends: 2943 [2021-03-11 14:44:00,002 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 768.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-03-11 14:44:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1580. [2021-03-11 14:44:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.476884103863204) internal successors, (7069), 1579 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7069 transitions. [2021-03-11 14:44:00,057 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7069 transitions. Word has length 28 [2021-03-11 14:44:00,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:00,057 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7069 transitions. [2021-03-11 14:44:00,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:00,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7069 transitions. [2021-03-11 14:44:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:00,059 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:00,060 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:00,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable794 [2021-03-11 14:44:00,060 INFO L428 AbstractCegarLoop]: === Iteration 796 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:00,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:00,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1560910546, now seen corresponding path program 788 times [2021-03-11 14:44:00,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:00,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371155314] [2021-03-11 14:44:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:00,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:00,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:00,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:00,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:00,097 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:00,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:00,133 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:00,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:00,179 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:00,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:00,240 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:00,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:00,314 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:00,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:00,405 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:00,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:00,523 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:00,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:00,661 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:00,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:00,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371155314] [2021-03-11 14:44:00,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:00,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:00,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960759517] [2021-03-11 14:44:00,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:00,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:00,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:00,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:00,786 INFO L87 Difference]: Start difference. First operand 1580 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:01,396 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:44:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:01,444 INFO L93 Difference]: Finished difference Result 2961 states and 11727 transitions. [2021-03-11 14:44:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:01,457 INFO L225 Difference]: With dead ends: 2961 [2021-03-11 14:44:01,457 INFO L226 Difference]: Without dead ends: 2937 [2021-03-11 14:44:01,457 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 898.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:01,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-03-11 14:44:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1574. [2021-03-11 14:44:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.483153210425938) internal successors, (7052), 1573 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:01,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7052 transitions. [2021-03-11 14:44:01,511 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7052 transitions. Word has length 28 [2021-03-11 14:44:01,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:01,511 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7052 transitions. [2021-03-11 14:44:01,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:01,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7052 transitions. [2021-03-11 14:44:01,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:01,514 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:01,514 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:01,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable795 [2021-03-11 14:44:01,515 INFO L428 AbstractCegarLoop]: === Iteration 797 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:01,515 INFO L82 PathProgramCache]: Analyzing trace with hash -463724252, now seen corresponding path program 789 times [2021-03-11 14:44:01,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:01,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394807642] [2021-03-11 14:44:01,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:01,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:01,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:01,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:01,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:01,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:01,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:01,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:01,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:01,639 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:01,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:01,713 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:01,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:01,799 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:01,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:01,902 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:01,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:02,021 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:02,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:02,159 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:02,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:02,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394807642] [2021-03-11 14:44:02,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:02,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:02,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992532107] [2021-03-11 14:44:02,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:02,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:02,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:02,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:02,278 INFO L87 Difference]: Start difference. First operand 1574 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:02,812 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:44:02,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:02,847 INFO L93 Difference]: Finished difference Result 2958 states and 11721 transitions. [2021-03-11 14:44:02,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:02,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:02,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:02,859 INFO L225 Difference]: With dead ends: 2958 [2021-03-11 14:44:02,859 INFO L226 Difference]: Without dead ends: 2942 [2021-03-11 14:44:02,860 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 885.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:02,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-03-11 14:44:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 1580. [2021-03-11 14:44:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.473084230525649) internal successors, (7063), 1579 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7063 transitions. [2021-03-11 14:44:02,908 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7063 transitions. Word has length 28 [2021-03-11 14:44:02,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:02,909 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7063 transitions. [2021-03-11 14:44:02,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7063 transitions. [2021-03-11 14:44:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:02,911 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:02,911 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:02,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable796 [2021-03-11 14:44:02,911 INFO L428 AbstractCegarLoop]: === Iteration 798 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:02,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:02,912 INFO L82 PathProgramCache]: Analyzing trace with hash 454225938, now seen corresponding path program 790 times [2021-03-11 14:44:02,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:02,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067451167] [2021-03-11 14:44:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:02,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:02,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:02,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:02,942 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:02,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:02,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:02,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:03,011 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:03,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:03,065 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:03,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:03,132 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:03,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:03,211 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:03,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:03,312 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:03,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:03,427 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:03,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:03,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067451167] [2021-03-11 14:44:03,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:03,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:03,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489666192] [2021-03-11 14:44:03,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:03,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:03,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:03,521 INFO L87 Difference]: Start difference. First operand 1580 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:03,964 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:44:04,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:04,012 INFO L93 Difference]: Finished difference Result 2959 states and 11717 transitions. [2021-03-11 14:44:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:04,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:04,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:04,023 INFO L225 Difference]: With dead ends: 2959 [2021-03-11 14:44:04,023 INFO L226 Difference]: Without dead ends: 2936 [2021-03-11 14:44:04,024 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 733.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:04,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-03-11 14:44:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1574. [2021-03-11 14:44:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.479338842975206) internal successors, (7046), 1573 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7046 transitions. [2021-03-11 14:44:04,073 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7046 transitions. Word has length 28 [2021-03-11 14:44:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:04,073 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7046 transitions. [2021-03-11 14:44:04,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:04,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7046 transitions. [2021-03-11 14:44:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:04,076 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:04,076 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:04,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable797 [2021-03-11 14:44:04,076 INFO L428 AbstractCegarLoop]: === Iteration 799 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:04,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:04,076 INFO L82 PathProgramCache]: Analyzing trace with hash -47404636, now seen corresponding path program 791 times [2021-03-11 14:44:04,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:04,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118958864] [2021-03-11 14:44:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:04,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:04,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:04,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:04,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:04,108 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:04,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:04,138 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:04,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:04,179 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:04,236 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:04,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:04,307 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:04,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:04,393 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:04,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:04,497 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:04,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:04,611 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:04,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:04,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118958864] [2021-03-11 14:44:04,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:04,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:04,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312333232] [2021-03-11 14:44:04,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:04,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:04,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:04,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:04,718 INFO L87 Difference]: Start difference. First operand 1574 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:05,124 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:44:05,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:05,161 INFO L93 Difference]: Finished difference Result 2963 states and 11726 transitions. [2021-03-11 14:44:05,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:05,166 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:05,174 INFO L225 Difference]: With dead ends: 2963 [2021-03-11 14:44:05,174 INFO L226 Difference]: Without dead ends: 2945 [2021-03-11 14:44:05,174 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 794.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-03-11 14:44:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1581. [2021-03-11 14:44:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.467721518987342) internal successors, (7059), 1580 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:05,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7059 transitions. [2021-03-11 14:44:05,224 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7059 transitions. Word has length 28 [2021-03-11 14:44:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:05,225 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7059 transitions. [2021-03-11 14:44:05,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:05,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7059 transitions. [2021-03-11 14:44:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:05,227 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:05,227 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:05,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable798 [2021-03-11 14:44:05,227 INFO L428 AbstractCegarLoop]: === Iteration 800 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:05,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:05,227 INFO L82 PathProgramCache]: Analyzing trace with hash -618859442, now seen corresponding path program 792 times [2021-03-11 14:44:05,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:05,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889445553] [2021-03-11 14:44:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:05,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:05,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:05,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:05,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:05,259 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:05,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:05,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:05,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:05,331 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:05,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:05,388 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:05,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:05,458 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:05,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:05,544 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:05,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:05,645 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:05,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:05,766 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:05,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:05,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889445553] [2021-03-11 14:44:05,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:05,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:05,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611091075] [2021-03-11 14:44:05,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:05,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:05,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:05,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:05,874 INFO L87 Difference]: Start difference. First operand 1581 states and 7059 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:06,443 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:44:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:06,499 INFO L93 Difference]: Finished difference Result 2962 states and 11717 transitions. [2021-03-11 14:44:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:06,503 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:06,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:06,511 INFO L225 Difference]: With dead ends: 2962 [2021-03-11 14:44:06,511 INFO L226 Difference]: Without dead ends: 2927 [2021-03-11 14:44:06,511 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 768.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2021-03-11 14:44:06,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 1563. [2021-03-11 14:44:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.4948783610755445) internal successors, (7021), 1562 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:06,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7021 transitions. [2021-03-11 14:44:06,565 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7021 transitions. Word has length 28 [2021-03-11 14:44:06,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:06,565 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7021 transitions. [2021-03-11 14:44:06,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:06,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7021 transitions. [2021-03-11 14:44:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:06,568 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:06,568 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:06,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable799 [2021-03-11 14:44:06,568 INFO L428 AbstractCegarLoop]: === Iteration 801 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:06,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:06,569 INFO L82 PathProgramCache]: Analyzing trace with hash 644085600, now seen corresponding path program 793 times [2021-03-11 14:44:06,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:06,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677447110] [2021-03-11 14:44:06,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:06,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:06,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:06,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:06,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:06,602 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:06,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:06,633 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:06,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:06,678 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:06,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:06,741 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:06,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:06,815 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:06,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:06,955 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:44:06,958 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:06,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:07,110 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-03-11 14:44:07,113 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:07,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:07,231 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:07,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:07,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677447110] [2021-03-11 14:44:07,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:07,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:07,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011751642] [2021-03-11 14:44:07,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:07,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:07,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:07,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:07,343 INFO L87 Difference]: Start difference. First operand 1563 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:07,725 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:07,759 INFO L93 Difference]: Finished difference Result 2985 states and 11793 transitions. [2021-03-11 14:44:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:07,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:07,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:07,770 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:44:07,770 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:44:07,770 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 884.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:07,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:44:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1584. [2021-03-11 14:44:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 4.47820593809223) internal successors, (7089), 1583 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 7089 transitions. [2021-03-11 14:44:07,818 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 7089 transitions. Word has length 28 [2021-03-11 14:44:07,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:07,818 INFO L480 AbstractCegarLoop]: Abstraction has 1584 states and 7089 transitions. [2021-03-11 14:44:07,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:07,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 7089 transitions. [2021-03-11 14:44:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:07,821 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:07,821 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:07,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable800 [2021-03-11 14:44:07,821 INFO L428 AbstractCegarLoop]: === Iteration 802 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:07,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:07,821 INFO L82 PathProgramCache]: Analyzing trace with hash 2133490596, now seen corresponding path program 794 times [2021-03-11 14:44:07,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:07,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477514156] [2021-03-11 14:44:07,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:07,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:07,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:07,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:07,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:07,853 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:07,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:07,884 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:07,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:07,929 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:07,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:07,989 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:07,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:08,064 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:08,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:08,207 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:44:08,211 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:08,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:08,360 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-03-11 14:44:08,363 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:08,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:08,489 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:08,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:08,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477514156] [2021-03-11 14:44:08,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:08,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:08,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77008127] [2021-03-11 14:44:08,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:08,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:08,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:08,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:08,598 INFO L87 Difference]: Start difference. First operand 1584 states and 7089 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:09,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:09,095 INFO L93 Difference]: Finished difference Result 2990 states and 11797 transitions. [2021-03-11 14:44:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:09,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:09,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:09,107 INFO L225 Difference]: With dead ends: 2990 [2021-03-11 14:44:09,107 INFO L226 Difference]: Without dead ends: 2964 [2021-03-11 14:44:09,107 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 826.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:09,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-03-11 14:44:09,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1578. [2021-03-11 14:44:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.484464172479392) internal successors, (7072), 1577 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:09,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7072 transitions. [2021-03-11 14:44:09,157 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7072 transitions. Word has length 28 [2021-03-11 14:44:09,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:09,157 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7072 transitions. [2021-03-11 14:44:09,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7072 transitions. [2021-03-11 14:44:09,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:09,160 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:09,160 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:09,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable801 [2021-03-11 14:44:09,160 INFO L428 AbstractCegarLoop]: === Iteration 803 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:09,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2039940738, now seen corresponding path program 795 times [2021-03-11 14:44:09,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:09,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132057651] [2021-03-11 14:44:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:09,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:09,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:09,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:09,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:09,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:09,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:09,229 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:09,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:09,274 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:09,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:09,337 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:09,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:09,412 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:09,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:09,549 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:44:09,552 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:44:09,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:44:09,703 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:09,706 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:09,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:09,823 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:09,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:09,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132057651] [2021-03-11 14:44:09,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:09,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:09,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006983954] [2021-03-11 14:44:09,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:09,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:09,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:09,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:09,930 INFO L87 Difference]: Start difference. First operand 1578 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:10,418 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:10,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:10,453 INFO L93 Difference]: Finished difference Result 2982 states and 11782 transitions. [2021-03-11 14:44:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:10,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:10,463 INFO L225 Difference]: With dead ends: 2982 [2021-03-11 14:44:10,463 INFO L226 Difference]: Without dead ends: 2967 [2021-03-11 14:44:10,464 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 889.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2021-03-11 14:44:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 1583. [2021-03-11 14:44:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.475979772439949) internal successors, (7081), 1582 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7081 transitions. [2021-03-11 14:44:10,513 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7081 transitions. Word has length 28 [2021-03-11 14:44:10,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:10,513 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7081 transitions. [2021-03-11 14:44:10,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7081 transitions. [2021-03-11 14:44:10,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:10,515 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:10,515 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:10,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable802 [2021-03-11 14:44:10,515 INFO L428 AbstractCegarLoop]: === Iteration 804 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:10,516 INFO L82 PathProgramCache]: Analyzing trace with hash 194166756, now seen corresponding path program 796 times [2021-03-11 14:44:10,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:10,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740010490] [2021-03-11 14:44:10,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:10,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:10,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:10,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:10,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:10,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:10,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:10,576 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:10,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:10,623 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:10,681 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:10,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:10,752 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:10,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:10,884 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:44:10,886 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:44:10,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:44:11,047 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:11,050 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:11,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:11,172 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:11,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:11,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740010490] [2021-03-11 14:44:11,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:11,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:11,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938250095] [2021-03-11 14:44:11,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:11,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:11,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:11,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:11,287 INFO L87 Difference]: Start difference. First operand 1583 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:11,856 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:44:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:11,934 INFO L93 Difference]: Finished difference Result 2985 states and 11783 transitions. [2021-03-11 14:44:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:11,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:11,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:11,948 INFO L225 Difference]: With dead ends: 2985 [2021-03-11 14:44:11,948 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:44:11,948 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 920.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:11,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:44:11,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1578. [2021-03-11 14:44:11,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.481293595434369) internal successors, (7067), 1577 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:12,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7067 transitions. [2021-03-11 14:44:12,000 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7067 transitions. Word has length 28 [2021-03-11 14:44:12,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:12,000 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7067 transitions. [2021-03-11 14:44:12,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:12,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7067 transitions. [2021-03-11 14:44:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:12,003 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:12,003 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:12,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable803 [2021-03-11 14:44:12,003 INFO L428 AbstractCegarLoop]: === Iteration 805 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:12,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:12,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1623621122, now seen corresponding path program 797 times [2021-03-11 14:44:12,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:12,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250501895] [2021-03-11 14:44:12,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:12,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:12,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:12,040 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:12,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:12,077 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:12,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:12,129 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:12,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:12,201 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:12,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:12,283 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:12,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:12,451 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:44:12,455 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:44:12,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:44:12,580 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:12,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:12,723 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:12,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:12,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250501895] [2021-03-11 14:44:12,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:12,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:12,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634075679] [2021-03-11 14:44:12,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:12,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:12,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:12,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:12,846 INFO L87 Difference]: Start difference. First operand 1578 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:13,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:13,258 INFO L93 Difference]: Finished difference Result 2997 states and 11807 transitions. [2021-03-11 14:44:13,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:13,262 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:13,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:13,269 INFO L225 Difference]: With dead ends: 2997 [2021-03-11 14:44:13,269 INFO L226 Difference]: Without dead ends: 2977 [2021-03-11 14:44:13,270 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 891.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-03-11 14:44:13,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 1588. [2021-03-11 14:44:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.463768115942029) internal successors, (7084), 1587 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7084 transitions. [2021-03-11 14:44:13,323 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7084 transitions. Word has length 28 [2021-03-11 14:44:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:13,323 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7084 transitions. [2021-03-11 14:44:13,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:13,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7084 transitions. [2021-03-11 14:44:13,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:13,325 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:13,326 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:13,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable804 [2021-03-11 14:44:13,326 INFO L428 AbstractCegarLoop]: === Iteration 806 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:13,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:13,326 INFO L82 PathProgramCache]: Analyzing trace with hash -878918624, now seen corresponding path program 798 times [2021-03-11 14:44:13,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:13,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059613000] [2021-03-11 14:44:13,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:13,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:13,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:13,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:13,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:13,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:13,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:13,424 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:13,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:13,495 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:13,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:13,591 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:13,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:13,704 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:13,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:13,877 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:44:13,880 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:44:13,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:44:13,990 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:13,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:14,111 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:14,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:14,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059613000] [2021-03-11 14:44:14,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:14,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:14,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836343330] [2021-03-11 14:44:14,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:14,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:14,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:14,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:14,221 INFO L87 Difference]: Start difference. First operand 1588 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:14,781 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:44:14,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:14,828 INFO L93 Difference]: Finished difference Result 2995 states and 11795 transitions. [2021-03-11 14:44:14,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:14,832 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:14,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:14,840 INFO L225 Difference]: With dead ends: 2995 [2021-03-11 14:44:14,840 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:44:14,840 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1027.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:44:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1571. [2021-03-11 14:44:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4885350318471335) internal successors, (7047), 1570 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7047 transitions. [2021-03-11 14:44:14,891 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7047 transitions. Word has length 28 [2021-03-11 14:44:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:14,891 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7047 transitions. [2021-03-11 14:44:14,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:14,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7047 transitions. [2021-03-11 14:44:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:14,893 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:14,893 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:14,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable805 [2021-03-11 14:44:14,894 INFO L428 AbstractCegarLoop]: === Iteration 807 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:14,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:14,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1231830922, now seen corresponding path program 799 times [2021-03-11 14:44:14,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:14,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886004382] [2021-03-11 14:44:14,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:14,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:14,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:14,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:14,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:14,927 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:14,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:14,959 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:14,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:15,001 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:15,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:15,064 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:15,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:15,146 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:15,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:15,236 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:15,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:15,392 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-03-11 14:44:15,395 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:15,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:15,515 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:15,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:15,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886004382] [2021-03-11 14:44:15,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:15,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:15,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281144786] [2021-03-11 14:44:15,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:15,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:15,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:15,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:15,624 INFO L87 Difference]: Start difference. First operand 1571 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:16,048 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:44:16,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:16,085 INFO L93 Difference]: Finished difference Result 2981 states and 11778 transitions. [2021-03-11 14:44:16,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:16,089 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:16,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:16,097 INFO L225 Difference]: With dead ends: 2981 [2021-03-11 14:44:16,097 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:44:16,097 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 845.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:44:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1583. [2021-03-11 14:44:16,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.475347661188369) internal successors, (7080), 1582 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:16,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7080 transitions. [2021-03-11 14:44:16,146 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7080 transitions. Word has length 28 [2021-03-11 14:44:16,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:16,147 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7080 transitions. [2021-03-11 14:44:16,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:16,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7080 transitions. [2021-03-11 14:44:16,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:16,149 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:16,149 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:16,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable806 [2021-03-11 14:44:16,149 INFO L428 AbstractCegarLoop]: === Iteration 808 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:16,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:16,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1573731378, now seen corresponding path program 800 times [2021-03-11 14:44:16,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:16,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699256430] [2021-03-11 14:44:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:16,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:16,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:16,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:16,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:16,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:16,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:16,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:16,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:16,247 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:16,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:16,307 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:16,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:16,380 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:16,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:16,469 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:16,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:16,623 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-03-11 14:44:16,627 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:16,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:16,750 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:16,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:16,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:16,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699256430] [2021-03-11 14:44:16,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:16,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:16,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208041265] [2021-03-11 14:44:16,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:16,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:16,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:16,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:16,868 INFO L87 Difference]: Start difference. First operand 1583 states and 7080 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:17,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:17,283 INFO L93 Difference]: Finished difference Result 2986 states and 11782 transitions. [2021-03-11 14:44:17,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:17,288 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:17,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:17,296 INFO L225 Difference]: With dead ends: 2986 [2021-03-11 14:44:17,296 INFO L226 Difference]: Without dead ends: 2960 [2021-03-11 14:44:17,296 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 769.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-11 14:44:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1577. [2021-03-11 14:44:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.481598984771574) internal successors, (7063), 1576 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7063 transitions. [2021-03-11 14:44:17,348 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7063 transitions. Word has length 28 [2021-03-11 14:44:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:17,348 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7063 transitions. [2021-03-11 14:44:17,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7063 transitions. [2021-03-11 14:44:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:17,351 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:17,351 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:17,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable807 [2021-03-11 14:44:17,351 INFO L428 AbstractCegarLoop]: === Iteration 809 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:17,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:17,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1987425218, now seen corresponding path program 801 times [2021-03-11 14:44:17,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:17,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924454221] [2021-03-11 14:44:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:17,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:17,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:17,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:17,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:17,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:17,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:17,415 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:17,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:17,450 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:17,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:17,499 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:17,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:17,560 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:17,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:17,643 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:17,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:17,749 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:17,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:17,880 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:17,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:18,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924454221] [2021-03-11 14:44:18,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:18,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:18,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171314121] [2021-03-11 14:44:18,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:18,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:18,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:18,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:18,005 INFO L87 Difference]: Start difference. First operand 1577 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:18,516 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:44:18,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:18,556 INFO L93 Difference]: Finished difference Result 2977 states and 11765 transitions. [2021-03-11 14:44:18,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:18,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:18,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:18,568 INFO L225 Difference]: With dead ends: 2977 [2021-03-11 14:44:18,568 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:44:18,568 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 782.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:18,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:44:18,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1582. [2021-03-11 14:44:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.473118279569892) internal successors, (7072), 1581 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7072 transitions. [2021-03-11 14:44:18,619 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7072 transitions. Word has length 28 [2021-03-11 14:44:18,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:18,619 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7072 transitions. [2021-03-11 14:44:18,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7072 transitions. [2021-03-11 14:44:18,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:18,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:18,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:18,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable808 [2021-03-11 14:44:18,622 INFO L428 AbstractCegarLoop]: === Iteration 810 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:18,622 INFO L82 PathProgramCache]: Analyzing trace with hash -324772530, now seen corresponding path program 802 times [2021-03-11 14:44:18,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:18,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901993923] [2021-03-11 14:44:18,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:18,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:18,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:18,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:18,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:18,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:18,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:18,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:18,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:18,726 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:18,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:18,789 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:18,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:18,865 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:18,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:18,952 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:18,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:19,052 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:19,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:19,172 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:19,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:19,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901993923] [2021-03-11 14:44:19,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:19,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:19,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112342908] [2021-03-11 14:44:19,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:19,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:19,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:19,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:19,280 INFO L87 Difference]: Start difference. First operand 1582 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:19,723 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:44:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:19,770 INFO L93 Difference]: Finished difference Result 2979 states and 11764 transitions. [2021-03-11 14:44:19,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:19,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:19,782 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:44:19,782 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:44:19,782 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 796.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:19,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:44:19,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1577. [2021-03-11 14:44:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.478426395939087) internal successors, (7058), 1576 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:19,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7058 transitions. [2021-03-11 14:44:19,833 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7058 transitions. Word has length 28 [2021-03-11 14:44:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:19,833 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7058 transitions. [2021-03-11 14:44:19,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:19,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7058 transitions. [2021-03-11 14:44:19,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:19,836 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:19,836 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:19,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable809 [2021-03-11 14:44:19,836 INFO L428 AbstractCegarLoop]: === Iteration 811 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:19,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1571105602, now seen corresponding path program 803 times [2021-03-11 14:44:19,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:19,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600371348] [2021-03-11 14:44:19,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:19,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:19,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:19,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:19,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:19,870 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:19,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:19,903 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:19,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:19,949 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:19,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:20,012 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:20,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:20,090 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:20,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:20,181 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:20,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:20,285 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:20,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:20,402 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:20,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:20,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600371348] [2021-03-11 14:44:20,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:20,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:20,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737541960] [2021-03-11 14:44:20,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:20,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:20,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:20,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:20,504 INFO L87 Difference]: Start difference. First operand 1577 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:20,947 INFO L93 Difference]: Finished difference Result 2990 states and 11786 transitions. [2021-03-11 14:44:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:20,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:20,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:20,959 INFO L225 Difference]: With dead ends: 2990 [2021-03-11 14:44:20,959 INFO L226 Difference]: Without dead ends: 2970 [2021-03-11 14:44:20,959 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 718.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:20,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-03-11 14:44:21,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1585. [2021-03-11 14:44:21,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.4646464646464645) internal successors, (7072), 1584 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7072 transitions. [2021-03-11 14:44:21,011 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7072 transitions. Word has length 28 [2021-03-11 14:44:21,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:21,011 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7072 transitions. [2021-03-11 14:44:21,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7072 transitions. [2021-03-11 14:44:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:21,013 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:21,013 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:21,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable810 [2021-03-11 14:44:21,013 INFO L428 AbstractCegarLoop]: === Iteration 812 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:21,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:21,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1397857910, now seen corresponding path program 804 times [2021-03-11 14:44:21,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:21,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572775527] [2021-03-11 14:44:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:21,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:21,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:21,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:21,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:21,048 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:21,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:21,083 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:21,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:21,129 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:21,190 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:21,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:21,262 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:21,350 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:21,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:21,455 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:21,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:21,573 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:21,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:21,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572775527] [2021-03-11 14:44:21,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:21,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:21,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845105449] [2021-03-11 14:44:21,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:21,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:21,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:21,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:21,685 INFO L87 Difference]: Start difference. First operand 1585 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:22,132 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:44:22,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:22,179 INFO L93 Difference]: Finished difference Result 2987 states and 11773 transitions. [2021-03-11 14:44:22,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:22,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:22,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:22,190 INFO L225 Difference]: With dead ends: 2987 [2021-03-11 14:44:22,190 INFO L226 Difference]: Without dead ends: 2956 [2021-03-11 14:44:22,190 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 794.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-11 14:44:22,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1571. [2021-03-11 14:44:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484713375796178) internal successors, (7041), 1570 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7041 transitions. [2021-03-11 14:44:22,239 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7041 transitions. Word has length 28 [2021-03-11 14:44:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:22,239 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7041 transitions. [2021-03-11 14:44:22,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7041 transitions. [2021-03-11 14:44:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:22,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:22,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:22,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable811 [2021-03-11 14:44:22,242 INFO L428 AbstractCegarLoop]: === Iteration 813 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1242334026, now seen corresponding path program 805 times [2021-03-11 14:44:22,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:22,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954058625] [2021-03-11 14:44:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:22,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:22,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:22,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:22,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:22,277 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:22,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:22,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:22,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:22,355 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:22,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:22,415 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:22,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:22,482 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:22,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:22,563 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:44:22,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:44:22,713 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:22,716 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:22,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:22,834 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:22,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:22,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954058625] [2021-03-11 14:44:22,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:22,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:22,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516565568] [2021-03-11 14:44:22,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:22,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:22,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:22,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:22,953 INFO L87 Difference]: Start difference. First operand 1571 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:23,397 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:23,434 INFO L93 Difference]: Finished difference Result 2973 states and 11757 transitions. [2021-03-11 14:44:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:23,437 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:23,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:23,445 INFO L225 Difference]: With dead ends: 2973 [2021-03-11 14:44:23,445 INFO L226 Difference]: Without dead ends: 2958 [2021-03-11 14:44:23,446 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 839.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:23,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-03-11 14:44:23,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1581. [2021-03-11 14:44:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.474050632911393) internal successors, (7069), 1580 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7069 transitions. [2021-03-11 14:44:23,496 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7069 transitions. Word has length 28 [2021-03-11 14:44:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:23,496 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7069 transitions. [2021-03-11 14:44:23,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:23,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7069 transitions. [2021-03-11 14:44:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:23,499 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:23,499 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:23,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable812 [2021-03-11 14:44:23,499 INFO L428 AbstractCegarLoop]: === Iteration 814 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:23,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:23,499 INFO L82 PathProgramCache]: Analyzing trace with hash -818525776, now seen corresponding path program 806 times [2021-03-11 14:44:23,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:23,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869787666] [2021-03-11 14:44:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:23,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:23,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:23,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:23,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:23,535 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:23,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:23,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:23,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:23,613 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:23,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:23,678 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:23,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:23,753 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:23,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:23,845 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:44:23,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:44:24,019 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:24,022 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:24,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:24,148 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:24,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:24,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869787666] [2021-03-11 14:44:24,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:24,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:24,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340981288] [2021-03-11 14:44:24,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:24,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:24,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:24,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:24,262 INFO L87 Difference]: Start difference. First operand 1581 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:24,904 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:44:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:24,947 INFO L93 Difference]: Finished difference Result 2976 states and 11758 transitions. [2021-03-11 14:44:24,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:24,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:24,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:24,959 INFO L225 Difference]: With dead ends: 2976 [2021-03-11 14:44:24,959 INFO L226 Difference]: Without dead ends: 2953 [2021-03-11 14:44:24,960 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 915.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:24,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-03-11 14:44:25,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1576. [2021-03-11 14:44:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.479365079365079) internal successors, (7055), 1575 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7055 transitions. [2021-03-11 14:44:25,011 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7055 transitions. Word has length 28 [2021-03-11 14:44:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:25,011 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7055 transitions. [2021-03-11 14:44:25,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7055 transitions. [2021-03-11 14:44:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:25,014 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:25,014 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:25,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable813 [2021-03-11 14:44:25,014 INFO L428 AbstractCegarLoop]: === Iteration 815 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:25,014 INFO L82 PathProgramCache]: Analyzing trace with hash 707104224, now seen corresponding path program 807 times [2021-03-11 14:44:25,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:25,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574625844] [2021-03-11 14:44:25,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:25,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:25,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:25,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:25,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:25,049 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:25,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:25,084 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:25,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:25,130 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:25,193 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:25,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:25,273 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:25,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:25,363 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:25,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:25,473 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:25,599 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:25,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:25,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:25,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574625844] [2021-03-11 14:44:25,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:25,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:25,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169844816] [2021-03-11 14:44:25,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:25,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:25,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:25,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:25,708 INFO L87 Difference]: Start difference. First operand 1576 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:26,185 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:26,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:26,220 INFO L93 Difference]: Finished difference Result 2972 states and 11750 transitions. [2021-03-11 14:44:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:26,225 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:26,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:26,232 INFO L225 Difference]: With dead ends: 2972 [2021-03-11 14:44:26,232 INFO L226 Difference]: Without dead ends: 2957 [2021-03-11 14:44:26,232 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 821.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:26,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2021-03-11 14:44:26,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 1581. [2021-03-11 14:44:26,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.470886075949367) internal successors, (7064), 1580 states have internal predecessors, (7064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7064 transitions. [2021-03-11 14:44:26,281 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7064 transitions. Word has length 28 [2021-03-11 14:44:26,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:26,281 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7064 transitions. [2021-03-11 14:44:26,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7064 transitions. [2021-03-11 14:44:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:26,283 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:26,283 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:26,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable814 [2021-03-11 14:44:26,284 INFO L428 AbstractCegarLoop]: === Iteration 816 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:26,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1925210384, now seen corresponding path program 808 times [2021-03-11 14:44:26,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:26,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67787770] [2021-03-11 14:44:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:26,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:26,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:26,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:26,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:26,314 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:26,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:26,343 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:26,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:26,382 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:26,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:26,436 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:26,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:26,502 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:26,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:26,581 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:26,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:26,683 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:26,807 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:26,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:26,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:26,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67787770] [2021-03-11 14:44:26,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:26,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:26,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694697802] [2021-03-11 14:44:26,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:26,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:26,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:26,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:26,916 INFO L87 Difference]: Start difference. First operand 1581 states and 7064 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:27,521 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:44:27,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:27,572 INFO L93 Difference]: Finished difference Result 2974 states and 11749 transitions. [2021-03-11 14:44:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:27,577 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:27,587 INFO L225 Difference]: With dead ends: 2974 [2021-03-11 14:44:27,587 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:44:27,587 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 767.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:27,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:44:27,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1576. [2021-03-11 14:44:27,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.476190476190476) internal successors, (7050), 1575 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7050 transitions. [2021-03-11 14:44:27,644 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7050 transitions. Word has length 28 [2021-03-11 14:44:27,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:27,644 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7050 transitions. [2021-03-11 14:44:27,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7050 transitions. [2021-03-11 14:44:27,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:27,647 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:27,647 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:27,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable815 [2021-03-11 14:44:27,647 INFO L428 AbstractCegarLoop]: === Iteration 817 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:27,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:27,647 INFO L82 PathProgramCache]: Analyzing trace with hash -815900000, now seen corresponding path program 809 times [2021-03-11 14:44:27,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:27,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260574590] [2021-03-11 14:44:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:27,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:27,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:27,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:27,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:27,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:27,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:27,717 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:27,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:27,765 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:27,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:27,829 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:27,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:27,907 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:27,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:27,995 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:27,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:28,107 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:28,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:28,235 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:28,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:28,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260574590] [2021-03-11 14:44:28,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:28,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:28,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335356276] [2021-03-11 14:44:28,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:28,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:28,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:28,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:28,346 INFO L87 Difference]: Start difference. First operand 1576 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:28,866 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:44:28,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:28,905 INFO L93 Difference]: Finished difference Result 2980 states and 11763 transitions. [2021-03-11 14:44:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:28,909 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:28,917 INFO L225 Difference]: With dead ends: 2980 [2021-03-11 14:44:28,917 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:44:28,917 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 849.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:44:28,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1583. [2021-03-11 14:44:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.464601769911504) internal successors, (7063), 1582 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7063 transitions. [2021-03-11 14:44:28,968 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7063 transitions. Word has length 28 [2021-03-11 14:44:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:28,968 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7063 transitions. [2021-03-11 14:44:28,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7063 transitions. [2021-03-11 14:44:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:28,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:28,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:28,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable816 [2021-03-11 14:44:28,971 INFO L428 AbstractCegarLoop]: === Iteration 818 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:28,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:28,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1387354806, now seen corresponding path program 810 times [2021-03-11 14:44:28,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:28,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632465571] [2021-03-11 14:44:28,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:28,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:28,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:28,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:29,005 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:29,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:29,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:29,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:29,083 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:29,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:29,146 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:29,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:29,223 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:44:29,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:44:29,313 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:29,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:29,422 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:29,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:29,544 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:29,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:29,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632465571] [2021-03-11 14:44:29,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:29,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:29,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374522763] [2021-03-11 14:44:29,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:29,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:29,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:29,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:29,659 INFO L87 Difference]: Start difference. First operand 1583 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:30,239 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:44:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:30,295 INFO L93 Difference]: Finished difference Result 2979 states and 11754 transitions. [2021-03-11 14:44:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:30,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:30,307 INFO L225 Difference]: With dead ends: 2979 [2021-03-11 14:44:30,307 INFO L226 Difference]: Without dead ends: 2950 [2021-03-11 14:44:30,307 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 806.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:30,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-03-11 14:44:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1571. [2021-03-11 14:44:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4815286624203825) internal successors, (7036), 1570 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:30,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7036 transitions. [2021-03-11 14:44:30,358 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7036 transitions. Word has length 28 [2021-03-11 14:44:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:30,358 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7036 transitions. [2021-03-11 14:44:30,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7036 transitions. [2021-03-11 14:44:30,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:30,361 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:30,361 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:30,361 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable817 [2021-03-11 14:44:30,361 INFO L428 AbstractCegarLoop]: === Iteration 819 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:30,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:30,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1542222066, now seen corresponding path program 811 times [2021-03-11 14:44:30,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:30,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595240695] [2021-03-11 14:44:30,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:30,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:30,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:30,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:30,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:30,393 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:30,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:30,423 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:30,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:30,466 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:30,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:30,522 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:30,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:30,591 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:44:30,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:44:30,681 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:44:30,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:44:30,792 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:30,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:30,923 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:30,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:31,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595240695] [2021-03-11 14:44:31,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:31,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:31,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692549902] [2021-03-11 14:44:31,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:31,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:31,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:31,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:31,049 INFO L87 Difference]: Start difference. First operand 1571 states and 7036 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:31,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:31,644 INFO L93 Difference]: Finished difference Result 3006 states and 11825 transitions. [2021-03-11 14:44:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:31,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:31,657 INFO L225 Difference]: With dead ends: 3006 [2021-03-11 14:44:31,657 INFO L226 Difference]: Without dead ends: 2986 [2021-03-11 14:44:31,657 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 744.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2021-03-11 14:44:31,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1591. [2021-03-11 14:44:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1590 states have (on average 4.456603773584906) internal successors, (7086), 1590 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 7086 transitions. [2021-03-11 14:44:31,709 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 7086 transitions. Word has length 28 [2021-03-11 14:44:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:31,709 INFO L480 AbstractCegarLoop]: Abstraction has 1591 states and 7086 transitions. [2021-03-11 14:44:31,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 7086 transitions. [2021-03-11 14:44:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:31,712 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:31,712 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:31,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable818 [2021-03-11 14:44:31,712 INFO L428 AbstractCegarLoop]: === Iteration 820 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:31,713 INFO L82 PathProgramCache]: Analyzing trace with hash -797519568, now seen corresponding path program 812 times [2021-03-11 14:44:31,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:31,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086480566] [2021-03-11 14:44:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:31,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:31,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:31,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:31,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:31,749 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:31,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:31,785 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:31,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:31,833 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:31,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:31,900 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:31,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:31,981 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:44:31,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:44:32,083 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:44:32,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:44:32,203 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:32,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:32,332 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:32,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086480566] [2021-03-11 14:44:32,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:32,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:32,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412883846] [2021-03-11 14:44:32,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:32,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:32,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:32,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:32,448 INFO L87 Difference]: Start difference. First operand 1591 states and 7086 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:33,154 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:44:33,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:33,196 INFO L93 Difference]: Finished difference Result 3004 states and 11813 transitions. [2021-03-11 14:44:33,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:33,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:33,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:33,207 INFO L225 Difference]: With dead ends: 3004 [2021-03-11 14:44:33,207 INFO L226 Difference]: Without dead ends: 2976 [2021-03-11 14:44:33,207 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 876.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-03-11 14:44:33,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1581. [2021-03-11 14:44:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.468354430379747) internal successors, (7060), 1580 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7060 transitions. [2021-03-11 14:44:33,257 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7060 transitions. Word has length 28 [2021-03-11 14:44:33,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:33,257 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7060 transitions. [2021-03-11 14:44:33,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7060 transitions. [2021-03-11 14:44:33,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:33,259 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:33,259 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:33,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable819 [2021-03-11 14:44:33,259 INFO L428 AbstractCegarLoop]: === Iteration 821 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:33,259 INFO L82 PathProgramCache]: Analyzing trace with hash -2077451868, now seen corresponding path program 813 times [2021-03-11 14:44:33,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:33,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654687714] [2021-03-11 14:44:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:33,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:33,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:33,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:33,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:33,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:33,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:33,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:33,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:33,362 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:33,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:33,421 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:33,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:33,495 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:44:33,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:44:33,592 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:33,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:33,700 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:33,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:33,832 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:33,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:33,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654687714] [2021-03-11 14:44:33,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:33,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:33,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096344855] [2021-03-11 14:44:33,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:33,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:33,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:33,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:33,945 INFO L87 Difference]: Start difference. First operand 1581 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:34,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:34,409 INFO L93 Difference]: Finished difference Result 3003 states and 11810 transitions. [2021-03-11 14:44:34,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:34,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:34,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:34,421 INFO L225 Difference]: With dead ends: 3003 [2021-03-11 14:44:34,421 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:44:34,422 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 743.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:34,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:44:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1589. [2021-03-11 14:44:34,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 4.454659949622166) internal successors, (7074), 1588 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 7074 transitions. [2021-03-11 14:44:34,471 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 7074 transitions. Word has length 28 [2021-03-11 14:44:34,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:34,472 INFO L480 AbstractCegarLoop]: Abstraction has 1589 states and 7074 transitions. [2021-03-11 14:44:34,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:34,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 7074 transitions. [2021-03-11 14:44:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:34,474 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:34,474 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:34,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable820 [2021-03-11 14:44:34,474 INFO L428 AbstractCegarLoop]: === Iteration 822 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:34,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:34,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1904204176, now seen corresponding path program 814 times [2021-03-11 14:44:34,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:34,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752547139] [2021-03-11 14:44:34,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:34,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:34,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:34,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:34,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:34,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:34,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:34,544 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:34,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:34,594 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:34,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:34,659 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:34,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:34,738 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:44:34,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:44:34,836 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:34,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:34,947 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:34,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:35,073 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:35,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:35,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752547139] [2021-03-11 14:44:35,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:35,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:35,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399387908] [2021-03-11 14:44:35,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:35,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:35,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:35,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:35,203 INFO L87 Difference]: Start difference. First operand 1589 states and 7074 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:35,690 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:44:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:35,735 INFO L93 Difference]: Finished difference Result 3000 states and 11797 transitions. [2021-03-11 14:44:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:35,738 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:35,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:35,745 INFO L225 Difference]: With dead ends: 3000 [2021-03-11 14:44:35,746 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:44:35,746 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 840.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:44:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1581. [2021-03-11 14:44:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.463291139240506) internal successors, (7052), 1580 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7052 transitions. [2021-03-11 14:44:35,795 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7052 transitions. Word has length 28 [2021-03-11 14:44:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:35,795 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7052 transitions. [2021-03-11 14:44:35,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7052 transitions. [2021-03-11 14:44:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:35,797 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:35,797 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:35,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable821 [2021-03-11 14:44:35,798 INFO L428 AbstractCegarLoop]: === Iteration 823 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:35,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:35,798 INFO L82 PathProgramCache]: Analyzing trace with hash 278191588, now seen corresponding path program 815 times [2021-03-11 14:44:35,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:35,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321852065] [2021-03-11 14:44:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:35,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:35,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:35,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:35,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:35,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:35,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:35,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:35,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:35,899 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:35,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:35,958 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:35,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:36,038 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:44:36,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:44:36,136 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:36,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:36,243 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:36,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:36,372 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:36,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:36,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321852065] [2021-03-11 14:44:36,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:36,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:36,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967597346] [2021-03-11 14:44:36,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:36,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:36,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:36,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:36,490 INFO L87 Difference]: Start difference. First operand 1581 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:37,017 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2021-03-11 14:44:37,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:37,068 INFO L93 Difference]: Finished difference Result 2998 states and 11794 transitions. [2021-03-11 14:44:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:37,081 INFO L225 Difference]: With dead ends: 2998 [2021-03-11 14:44:37,081 INFO L226 Difference]: Without dead ends: 2980 [2021-03-11 14:44:37,081 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 854.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:37,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2021-03-11 14:44:37,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 1588. [2021-03-11 14:44:37,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.4517958412098295) internal successors, (7065), 1587 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7065 transitions. [2021-03-11 14:44:37,132 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7065 transitions. Word has length 28 [2021-03-11 14:44:37,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:37,133 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7065 transitions. [2021-03-11 14:44:37,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:37,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7065 transitions. [2021-03-11 14:44:37,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:37,135 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:37,135 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:37,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable822 [2021-03-11 14:44:37,135 INFO L428 AbstractCegarLoop]: === Iteration 824 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:37,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:37,136 INFO L82 PathProgramCache]: Analyzing trace with hash -293263218, now seen corresponding path program 816 times [2021-03-11 14:44:37,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:37,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400580019] [2021-03-11 14:44:37,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:37,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:37,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:37,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:37,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:37,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:37,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:37,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:37,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:37,256 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:37,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:37,322 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:44:37,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:44:37,402 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:44:37,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:44:37,500 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:37,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:37,607 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:37,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:37,727 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:37,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:37,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400580019] [2021-03-11 14:44:37,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:37,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:37,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702461406] [2021-03-11 14:44:37,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:37,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:37,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:37,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:37,834 INFO L87 Difference]: Start difference. First operand 1588 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:38,484 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:44:38,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:38,565 INFO L93 Difference]: Finished difference Result 2997 states and 11785 transitions. [2021-03-11 14:44:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:38,570 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:38,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:38,578 INFO L225 Difference]: With dead ends: 2997 [2021-03-11 14:44:38,578 INFO L226 Difference]: Without dead ends: 2955 [2021-03-11 14:44:38,578 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 817.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:38,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2021-03-11 14:44:38,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1563. [2021-03-11 14:44:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.489756722151088) internal successors, (7013), 1562 states have internal predecessors, (7013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7013 transitions. [2021-03-11 14:44:38,630 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7013 transitions. Word has length 28 [2021-03-11 14:44:38,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:38,630 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7013 transitions. [2021-03-11 14:44:38,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7013 transitions. [2021-03-11 14:44:38,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:38,633 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:38,633 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:38,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable823 [2021-03-11 14:44:38,633 INFO L428 AbstractCegarLoop]: === Iteration 825 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:38,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:38,634 INFO L82 PathProgramCache]: Analyzing trace with hash -969642016, now seen corresponding path program 817 times [2021-03-11 14:44:38,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:38,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903498552] [2021-03-11 14:44:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:38,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:38,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:38,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:38,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:38,667 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:38,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:38,701 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:38,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:38,747 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:38,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:38,810 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:38,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:38,890 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:38,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:38,982 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:38,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:39,153 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:39,157 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:39,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:39,285 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:39,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:39,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903498552] [2021-03-11 14:44:39,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:39,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:39,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751508505] [2021-03-11 14:44:39,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:39,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:39,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:39,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:39,403 INFO L87 Difference]: Start difference. First operand 1563 states and 7013 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:39,896 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:39,954 INFO L93 Difference]: Finished difference Result 3001 states and 11833 transitions. [2021-03-11 14:44:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:39,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:39,967 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:44:39,967 INFO L226 Difference]: Without dead ends: 2985 [2021-03-11 14:44:39,967 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 958.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2021-03-11 14:44:40,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1588. [2021-03-11 14:44:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.469439193446755) internal successors, (7093), 1587 states have internal predecessors, (7093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:40,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7093 transitions. [2021-03-11 14:44:40,019 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7093 transitions. Word has length 28 [2021-03-11 14:44:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:40,019 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7093 transitions. [2021-03-11 14:44:40,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7093 transitions. [2021-03-11 14:44:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:40,022 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:40,022 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:40,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable824 [2021-03-11 14:44:40,022 INFO L428 AbstractCegarLoop]: === Iteration 826 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:40,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:40,022 INFO L82 PathProgramCache]: Analyzing trace with hash -224939518, now seen corresponding path program 818 times [2021-03-11 14:44:40,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:40,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63080449] [2021-03-11 14:44:40,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:40,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:40,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:40,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:40,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:40,060 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:40,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:40,095 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:40,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:40,145 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:40,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:40,216 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:40,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:40,299 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:40,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:40,399 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:40,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:40,582 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:40,586 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:40,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:40,718 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:40,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:40,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63080449] [2021-03-11 14:44:40,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:40,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:40,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090177711] [2021-03-11 14:44:40,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:40,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:40,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:40,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:40,836 INFO L87 Difference]: Start difference. First operand 1588 states and 7093 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:41,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:41,247 INFO L93 Difference]: Finished difference Result 3005 states and 11834 transitions. [2021-03-11 14:44:41,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:41,260 INFO L225 Difference]: With dead ends: 3005 [2021-03-11 14:44:41,260 INFO L226 Difference]: Without dead ends: 2978 [2021-03-11 14:44:41,260 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 867.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:41,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2021-03-11 14:44:41,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1581. [2021-03-11 14:44:41,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.476582278481013) internal successors, (7073), 1580 states have internal predecessors, (7073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7073 transitions. [2021-03-11 14:44:41,311 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7073 transitions. Word has length 28 [2021-03-11 14:44:41,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:41,311 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7073 transitions. [2021-03-11 14:44:41,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7073 transitions. [2021-03-11 14:44:41,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:41,315 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:41,315 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:41,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable825 [2021-03-11 14:44:41,315 INFO L428 AbstractCegarLoop]: === Iteration 827 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:41,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:41,315 INFO L82 PathProgramCache]: Analyzing trace with hash 641298942, now seen corresponding path program 819 times [2021-03-11 14:44:41,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:41,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261759256] [2021-03-11 14:44:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:41,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:41,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:41,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:41,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:41,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:41,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:41,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:41,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:41,434 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:41,501 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:41,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:41,584 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:41,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:41,690 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:41,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:41,806 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:41,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:41,944 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:41,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:42,087 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:44:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:42,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261759256] [2021-03-11 14:44:42,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:42,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:42,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051270116] [2021-03-11 14:44:42,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:42,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:42,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:42,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:42,091 INFO L87 Difference]: Start difference. First operand 1581 states and 7073 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:42,609 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:42,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:42,652 INFO L93 Difference]: Finished difference Result 2998 states and 11821 transitions. [2021-03-11 14:44:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:42,657 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:42,665 INFO L225 Difference]: With dead ends: 2998 [2021-03-11 14:44:42,666 INFO L226 Difference]: Without dead ends: 2982 [2021-03-11 14:44:42,666 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 940.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2021-03-11 14:44:42,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1587. [2021-03-11 14:44:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.466582597730139) internal successors, (7084), 1586 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7084 transitions. [2021-03-11 14:44:42,718 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7084 transitions. Word has length 28 [2021-03-11 14:44:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:42,718 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7084 transitions. [2021-03-11 14:44:42,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7084 transitions. [2021-03-11 14:44:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:42,721 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:42,721 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:42,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable826 [2021-03-11 14:44:42,721 INFO L428 AbstractCegarLoop]: === Iteration 828 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash 2130703938, now seen corresponding path program 820 times [2021-03-11 14:44:42,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:42,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918461922] [2021-03-11 14:44:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:42,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:42,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:42,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:42,762 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:42,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:42,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:42,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:42,852 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:42,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:42,931 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:42,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:43,020 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:43,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:43,122 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:43,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:43,229 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:43,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:43,352 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:43,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:43,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918461922] [2021-03-11 14:44:43,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:43,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:43,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186719355] [2021-03-11 14:44:43,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:43,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:43,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:43,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:43,460 INFO L87 Difference]: Start difference. First operand 1587 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:43,988 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:44:44,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:44,042 INFO L93 Difference]: Finished difference Result 3000 states and 11819 transitions. [2021-03-11 14:44:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:44,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:44,055 INFO L225 Difference]: With dead ends: 3000 [2021-03-11 14:44:44,055 INFO L226 Difference]: Without dead ends: 2976 [2021-03-11 14:44:44,055 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 897.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:44,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-03-11 14:44:44,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1581. [2021-03-11 14:44:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.472784810126583) internal successors, (7067), 1580 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7067 transitions. [2021-03-11 14:44:44,109 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7067 transitions. Word has length 28 [2021-03-11 14:44:44,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:44,109 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7067 transitions. [2021-03-11 14:44:44,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:44,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7067 transitions. [2021-03-11 14:44:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:44,112 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:44,112 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:44,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable827 [2021-03-11 14:44:44,112 INFO L428 AbstractCegarLoop]: === Iteration 829 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:44,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:44,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1298024898, now seen corresponding path program 821 times [2021-03-11 14:44:44,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:44,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772994466] [2021-03-11 14:44:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:44,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:44,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:44,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:44,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:44,149 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:44,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:44,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:44,231 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:44,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:44,296 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:44,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:44,376 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:44,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:44,470 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:44:44,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:44:44,588 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:44,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:44,719 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:44,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:44,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:44,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772994466] [2021-03-11 14:44:44,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:44,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:44,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665999169] [2021-03-11 14:44:44,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:44,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:44,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:44,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:44,835 INFO L87 Difference]: Start difference. First operand 1581 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:45,309 INFO L93 Difference]: Finished difference Result 3010 states and 11838 transitions. [2021-03-11 14:44:45,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:45,314 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:45,322 INFO L225 Difference]: With dead ends: 3010 [2021-03-11 14:44:45,322 INFO L226 Difference]: Without dead ends: 2990 [2021-03-11 14:44:45,322 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 786.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:45,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-03-11 14:44:45,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1591. [2021-03-11 14:44:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1590 states have (on average 4.455345911949686) internal successors, (7084), 1590 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 7084 transitions. [2021-03-11 14:44:45,373 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 7084 transitions. Word has length 28 [2021-03-11 14:44:45,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:45,373 INFO L480 AbstractCegarLoop]: Abstraction has 1591 states and 7084 transitions. [2021-03-11 14:44:45,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:45,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 7084 transitions. [2021-03-11 14:44:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:45,376 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:45,376 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:45,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable828 [2021-03-11 14:44:45,376 INFO L428 AbstractCegarLoop]: === Iteration 830 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:45,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:45,376 INFO L82 PathProgramCache]: Analyzing trace with hash -553322400, now seen corresponding path program 822 times [2021-03-11 14:44:45,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:45,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907516911] [2021-03-11 14:44:45,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:45,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:45,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:45,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:45,412 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:45,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:45,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:45,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:45,491 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:45,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:45,556 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:45,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:45,630 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:45,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:45,716 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:44:45,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:44:45,819 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:45,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:45,935 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:45,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:46,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907516911] [2021-03-11 14:44:46,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:46,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:46,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329556414] [2021-03-11 14:44:46,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:46,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:46,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:46,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:46,050 INFO L87 Difference]: Start difference. First operand 1591 states and 7084 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:46,493 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:44:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:46,540 INFO L93 Difference]: Finished difference Result 3008 states and 11826 transitions. [2021-03-11 14:44:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:46,544 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:46,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:46,553 INFO L225 Difference]: With dead ends: 3008 [2021-03-11 14:44:46,553 INFO L226 Difference]: Without dead ends: 2972 [2021-03-11 14:44:46,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 830.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:46,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-03-11 14:44:46,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 1573. [2021-03-11 14:44:46,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.480916030534351) internal successors, (7044), 1572 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7044 transitions. [2021-03-11 14:44:46,604 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7044 transitions. Word has length 28 [2021-03-11 14:44:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:46,604 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7044 transitions. [2021-03-11 14:44:46,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:46,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7044 transitions. [2021-03-11 14:44:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:46,607 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:46,607 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:46,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable829 [2021-03-11 14:44:46,607 INFO L428 AbstractCegarLoop]: === Iteration 831 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:46,607 INFO L82 PathProgramCache]: Analyzing trace with hash -381896694, now seen corresponding path program 823 times [2021-03-11 14:44:46,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:46,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767157284] [2021-03-11 14:44:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:46,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:46,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:46,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:46,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:46,644 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:46,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:46,680 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:46,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:46,733 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:46,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:46,800 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:46,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:46,881 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:46,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:46,979 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:46,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:47,162 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:47,166 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:47,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:47,309 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:47,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:47,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:47,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767157284] [2021-03-11 14:44:47,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:47,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:47,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678049246] [2021-03-11 14:44:47,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:47,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:47,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:47,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:47,431 INFO L87 Difference]: Start difference. First operand 1573 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:47,899 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:44:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:47,946 INFO L93 Difference]: Finished difference Result 2997 states and 11817 transitions. [2021-03-11 14:44:47,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:47,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:47,959 INFO L225 Difference]: With dead ends: 2997 [2021-03-11 14:44:47,959 INFO L226 Difference]: Without dead ends: 2981 [2021-03-11 14:44:47,960 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 961.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-03-11 14:44:48,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1587. [2021-03-11 14:44:48,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 4.465952080706179) internal successors, (7083), 1586 states have internal predecessors, (7083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 7083 transitions. [2021-03-11 14:44:48,011 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 7083 transitions. Word has length 28 [2021-03-11 14:44:48,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:48,011 INFO L480 AbstractCegarLoop]: Abstraction has 1587 states and 7083 transitions. [2021-03-11 14:44:48,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:48,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 7083 transitions. [2021-03-11 14:44:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:48,014 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:48,014 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:48,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable830 [2021-03-11 14:44:48,014 INFO L428 AbstractCegarLoop]: === Iteration 832 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:48,014 INFO L82 PathProgramCache]: Analyzing trace with hash 362805804, now seen corresponding path program 824 times [2021-03-11 14:44:48,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:48,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573125467] [2021-03-11 14:44:48,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:48,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:48,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:48,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:48,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:48,051 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:48,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:48,086 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:48,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:48,135 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:48,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:48,202 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:48,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:48,284 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:48,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:48,381 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:44:48,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:44:48,564 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:44:48,568 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:48,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:48,701 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:48,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:48,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573125467] [2021-03-11 14:44:48,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:48,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:48,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45389101] [2021-03-11 14:44:48,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:48,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:48,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:48,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:48,820 INFO L87 Difference]: Start difference. First operand 1587 states and 7083 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:49,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:49,186 INFO L93 Difference]: Finished difference Result 3001 states and 11818 transitions. [2021-03-11 14:44:49,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:49,189 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:49,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:49,196 INFO L225 Difference]: With dead ends: 3001 [2021-03-11 14:44:49,197 INFO L226 Difference]: Without dead ends: 2974 [2021-03-11 14:44:49,197 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 850.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:49,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-03-11 14:44:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1580. [2021-03-11 14:44:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.473084230525649) internal successors, (7063), 1579 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7063 transitions. [2021-03-11 14:44:49,245 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7063 transitions. Word has length 28 [2021-03-11 14:44:49,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:49,245 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7063 transitions. [2021-03-11 14:44:49,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7063 transitions. [2021-03-11 14:44:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:49,248 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:49,248 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:49,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable831 [2021-03-11 14:44:49,248 INFO L428 AbstractCegarLoop]: === Iteration 833 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:49,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:49,248 INFO L82 PathProgramCache]: Analyzing trace with hash 693814462, now seen corresponding path program 825 times [2021-03-11 14:44:49,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:49,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045815575] [2021-03-11 14:44:49,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:49,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:49,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:49,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:49,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:49,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:49,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:49,311 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:49,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:49,354 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:49,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:49,418 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:49,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:49,506 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:49,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:49,606 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:49,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:49,716 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:49,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:49,879 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-11 14:44:49,884 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:50,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:50,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045815575] [2021-03-11 14:44:50,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:50,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:50,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217440612] [2021-03-11 14:44:50,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:50,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:50,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:50,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:50,016 INFO L87 Difference]: Start difference. First operand 1580 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:50,464 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:44:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:50,506 INFO L93 Difference]: Finished difference Result 2993 states and 11803 transitions. [2021-03-11 14:44:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:50,510 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:50,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:50,518 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:44:50,518 INFO L226 Difference]: Without dead ends: 2977 [2021-03-11 14:44:50,518 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 916.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:50,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-03-11 14:44:50,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 1586. [2021-03-11 14:44:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.463091482649842) internal successors, (7074), 1585 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:50,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7074 transitions. [2021-03-11 14:44:50,570 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7074 transitions. Word has length 28 [2021-03-11 14:44:50,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:50,570 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7074 transitions. [2021-03-11 14:44:50,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:50,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7074 transitions. [2021-03-11 14:44:50,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:50,573 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:50,573 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:50,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable832 [2021-03-11 14:44:50,573 INFO L428 AbstractCegarLoop]: === Iteration 834 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:50,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1611764652, now seen corresponding path program 826 times [2021-03-11 14:44:50,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:50,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708748339] [2021-03-11 14:44:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:50,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:50,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:50,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:50,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:50,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:50,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:50,646 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:50,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:50,697 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:50,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:50,765 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:50,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:50,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:50,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:50,949 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:50,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:51,055 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:51,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:51,177 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:51,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:51,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708748339] [2021-03-11 14:44:51,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:51,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:51,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905650760] [2021-03-11 14:44:51,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:51,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:51,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:51,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:51,297 INFO L87 Difference]: Start difference. First operand 1586 states and 7074 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:51,718 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:51,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:51,766 INFO L93 Difference]: Finished difference Result 2994 states and 11799 transitions. [2021-03-11 14:44:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:51,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:51,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:51,778 INFO L225 Difference]: With dead ends: 2994 [2021-03-11 14:44:51,778 INFO L226 Difference]: Without dead ends: 2971 [2021-03-11 14:44:51,778 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 852.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-03-11 14:44:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1580. [2021-03-11 14:44:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.469284357188093) internal successors, (7057), 1579 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7057 transitions. [2021-03-11 14:44:51,828 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7057 transitions. Word has length 28 [2021-03-11 14:44:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:51,828 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7057 transitions. [2021-03-11 14:44:51,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7057 transitions. [2021-03-11 14:44:51,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:51,831 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:51,831 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:51,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable833 [2021-03-11 14:44:51,831 INFO L428 AbstractCegarLoop]: === Iteration 835 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:51,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:51,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1245509378, now seen corresponding path program 827 times [2021-03-11 14:44:51,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:51,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455421517] [2021-03-11 14:44:51,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:51,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:51,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:51,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:51,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:51,865 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:51,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:51,896 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:51,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:51,941 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:51,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:52,000 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:52,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:52,072 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:52,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:52,160 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:52,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:52,269 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:44:52,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:44:52,410 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:52,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:52,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455421517] [2021-03-11 14:44:52,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:52,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:52,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127693152] [2021-03-11 14:44:52,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:52,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:52,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:52,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:52,538 INFO L87 Difference]: Start difference. First operand 1580 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:52,943 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:44:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:52,981 INFO L93 Difference]: Finished difference Result 3003 states and 11816 transitions. [2021-03-11 14:44:52,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:52,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:52,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:52,994 INFO L225 Difference]: With dead ends: 3003 [2021-03-11 14:44:52,994 INFO L226 Difference]: Without dead ends: 2983 [2021-03-11 14:44:52,994 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 777.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:53,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-03-11 14:44:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 1588. [2021-03-11 14:44:53,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 4.455576559546314) internal successors, (7071), 1587 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:53,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 7071 transitions. [2021-03-11 14:44:53,046 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 7071 transitions. Word has length 28 [2021-03-11 14:44:53,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:53,046 INFO L480 AbstractCegarLoop]: Abstraction has 1588 states and 7071 transitions. [2021-03-11 14:44:53,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 7071 transitions. [2021-03-11 14:44:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:53,049 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:53,049 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:53,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable834 [2021-03-11 14:44:53,049 INFO L428 AbstractCegarLoop]: === Iteration 836 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:53,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1072261686, now seen corresponding path program 828 times [2021-03-11 14:44:53,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:53,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34981210] [2021-03-11 14:44:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:53,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:53,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:53,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:53,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:53,096 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:53,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:53,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:53,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:53,183 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:53,252 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:53,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:53,341 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:53,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:53,448 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:53,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:53,564 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:53,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:53,691 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:53,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:53,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34981210] [2021-03-11 14:44:53,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:53,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:53,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805520030] [2021-03-11 14:44:53,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:53,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:53,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:53,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:53,800 INFO L87 Difference]: Start difference. First operand 1588 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:54,322 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:54,369 INFO L93 Difference]: Finished difference Result 3000 states and 11803 transitions. [2021-03-11 14:44:54,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:54,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:54,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:54,383 INFO L225 Difference]: With dead ends: 3000 [2021-03-11 14:44:54,383 INFO L226 Difference]: Without dead ends: 2968 [2021-03-11 14:44:54,383 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 895.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:54,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-03-11 14:44:54,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1573. [2021-03-11 14:44:54,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.4764631043257) internal successors, (7037), 1572 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:54,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7037 transitions. [2021-03-11 14:44:54,436 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7037 transitions. Word has length 28 [2021-03-11 14:44:54,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:54,436 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7037 transitions. [2021-03-11 14:44:54,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7037 transitions. [2021-03-11 14:44:54,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:54,439 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:54,439 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:54,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable835 [2021-03-11 14:44:54,439 INFO L428 AbstractCegarLoop]: === Iteration 837 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:54,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:54,439 INFO L82 PathProgramCache]: Analyzing trace with hash -371393590, now seen corresponding path program 829 times [2021-03-11 14:44:54,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:54,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691154564] [2021-03-11 14:44:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:54,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:54,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:54,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:54,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:54,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:54,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:54,517 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:54,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:54,571 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:54,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:54,645 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:54,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:54,734 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:54,835 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:54,952 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:54,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:55,096 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:55,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:55,238 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:44:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:55,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691154564] [2021-03-11 14:44:55,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:55,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:55,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407632878] [2021-03-11 14:44:55,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:55,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:55,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:55,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:55,241 INFO L87 Difference]: Start difference. First operand 1573 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:55,826 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:44:55,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:55,869 INFO L93 Difference]: Finished difference Result 2989 states and 11795 transitions. [2021-03-11 14:44:55,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:55,874 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:55,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:55,882 INFO L225 Difference]: With dead ends: 2989 [2021-03-11 14:44:55,882 INFO L226 Difference]: Without dead ends: 2973 [2021-03-11 14:44:55,882 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 942.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:55,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2021-03-11 14:44:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 1585. [2021-03-11 14:44:55,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.464015151515151) internal successors, (7071), 1584 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:55,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7071 transitions. [2021-03-11 14:44:55,934 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7071 transitions. Word has length 28 [2021-03-11 14:44:55,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:55,934 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7071 transitions. [2021-03-11 14:44:55,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:55,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7071 transitions. [2021-03-11 14:44:55,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:55,937 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:55,937 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:55,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable836 [2021-03-11 14:44:55,937 INFO L428 AbstractCegarLoop]: === Iteration 838 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:55,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:55,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1118011406, now seen corresponding path program 830 times [2021-03-11 14:44:55,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:55,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097354556] [2021-03-11 14:44:55,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:55,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:55,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:55,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:55,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:55,988 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:55,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:56,026 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:56,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:56,071 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:56,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:56,132 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:56,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:56,207 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:56,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:56,294 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:44:56,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:44:56,394 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:56,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:56,527 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:56,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:56,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097354556] [2021-03-11 14:44:56,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:56,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:56,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035245836] [2021-03-11 14:44:56,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:56,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:56,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:56,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:56,651 INFO L87 Difference]: Start difference. First operand 1585 states and 7071 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:57,131 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:44:57,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:57,178 INFO L93 Difference]: Finished difference Result 2991 states and 11793 transitions. [2021-03-11 14:44:57,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:57,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:57,190 INFO L225 Difference]: With dead ends: 2991 [2021-03-11 14:44:57,191 INFO L226 Difference]: Without dead ends: 2967 [2021-03-11 14:44:57,191 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 880.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:57,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2021-03-11 14:44:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 1579. [2021-03-11 14:44:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.4702154626109) internal successors, (7054), 1578 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:57,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7054 transitions. [2021-03-11 14:44:57,242 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7054 transitions. Word has length 28 [2021-03-11 14:44:57,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:57,242 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7054 transitions. [2021-03-11 14:44:57,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7054 transitions. [2021-03-11 14:44:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:57,245 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:57,245 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:57,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable837 [2021-03-11 14:44:57,245 INFO L428 AbstractCegarLoop]: === Iteration 839 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:57,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:57,245 INFO L82 PathProgramCache]: Analyzing trace with hash -906623392, now seen corresponding path program 831 times [2021-03-11 14:44:57,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:57,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874188440] [2021-03-11 14:44:57,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:57,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:57,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:57,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:57,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:57,282 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:57,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:57,319 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:57,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:57,369 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:57,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:57,439 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:57,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:57,523 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:57,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:57,619 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:57,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:57,740 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:57,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:57,878 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:57,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:58,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874188440] [2021-03-11 14:44:58,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:58,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:58,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629612051] [2021-03-11 14:44:58,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:58,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:58,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:58,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:58,001 INFO L87 Difference]: Start difference. First operand 1579 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:58,582 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:44:58,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:58,623 INFO L93 Difference]: Finished difference Result 2988 states and 11787 transitions. [2021-03-11 14:44:58,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:58,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:58,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:44:58,636 INFO L225 Difference]: With dead ends: 2988 [2021-03-11 14:44:58,636 INFO L226 Difference]: Without dead ends: 2972 [2021-03-11 14:44:58,636 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 903.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:44:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-03-11 14:44:58,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 1585. [2021-03-11 14:44:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1584 states have (on average 4.4602272727272725) internal successors, (7065), 1584 states have internal predecessors, (7065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:58,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 7065 transitions. [2021-03-11 14:44:58,688 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 7065 transitions. Word has length 28 [2021-03-11 14:44:58,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:44:58,688 INFO L480 AbstractCegarLoop]: Abstraction has 1585 states and 7065 transitions. [2021-03-11 14:44:58,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:58,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 7065 transitions. [2021-03-11 14:44:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:44:58,691 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:44:58,691 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:44:58,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable838 [2021-03-11 14:44:58,691 INFO L428 AbstractCegarLoop]: === Iteration 840 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:44:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:44:58,692 INFO L82 PathProgramCache]: Analyzing trace with hash 11326798, now seen corresponding path program 832 times [2021-03-11 14:44:58,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:44:58,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598756957] [2021-03-11 14:44:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:44:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:44:58,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:58,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:44:58,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:44:58,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:44:58,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:44:58,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:44:58,768 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:44:58,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:44:58,820 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:44:58,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:44:58,890 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:44:58,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:44:58,975 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:44:58,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:44:59,075 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:44:59,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:44:59,191 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:44:59,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:44:59,328 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:44:59,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:44:59,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:44:59,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598756957] [2021-03-11 14:44:59,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:44:59,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:44:59,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338227216] [2021-03-11 14:44:59,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:44:59,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:44:59,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:44:59,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:44:59,454 INFO L87 Difference]: Start difference. First operand 1585 states and 7065 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:44:59,936 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:44:59,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:44:59,993 INFO L93 Difference]: Finished difference Result 2989 states and 11783 transitions. [2021-03-11 14:44:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:44:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:44:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:00,006 INFO L225 Difference]: With dead ends: 2989 [2021-03-11 14:45:00,006 INFO L226 Difference]: Without dead ends: 2966 [2021-03-11 14:45:00,007 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 900.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-03-11 14:45:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1579. [2021-03-11 14:45:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.466413181242078) internal successors, (7048), 1578 states have internal predecessors, (7048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7048 transitions. [2021-03-11 14:45:00,058 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7048 transitions. Word has length 28 [2021-03-11 14:45:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:00,058 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7048 transitions. [2021-03-11 14:45:00,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7048 transitions. [2021-03-11 14:45:00,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:00,061 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:00,061 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:00,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable839 [2021-03-11 14:45:00,061 INFO L428 AbstractCegarLoop]: === Iteration 841 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:00,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:00,061 INFO L82 PathProgramCache]: Analyzing trace with hash -490303776, now seen corresponding path program 833 times [2021-03-11 14:45:00,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:00,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979800424] [2021-03-11 14:45:00,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:00,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:00,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:00,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:00,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:00,099 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:00,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:00,140 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:00,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:00,193 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:00,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:00,256 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:00,332 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:00,422 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:00,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:00,529 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:00,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:00,658 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:00,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:00,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:00,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979800424] [2021-03-11 14:45:00,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:00,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:00,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378774238] [2021-03-11 14:45:00,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:00,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:00,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:00,791 INFO L87 Difference]: Start difference. First operand 1579 states and 7048 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:01,315 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:45:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:01,360 INFO L93 Difference]: Finished difference Result 2993 states and 11792 transitions. [2021-03-11 14:45:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:01,365 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:01,372 INFO L225 Difference]: With dead ends: 2993 [2021-03-11 14:45:01,372 INFO L226 Difference]: Without dead ends: 2975 [2021-03-11 14:45:01,373 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 912.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:01,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-03-11 14:45:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1586. [2021-03-11 14:45:01,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 4.454889589905362) internal successors, (7061), 1585 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 7061 transitions. [2021-03-11 14:45:01,427 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 7061 transitions. Word has length 28 [2021-03-11 14:45:01,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:01,427 INFO L480 AbstractCegarLoop]: Abstraction has 1586 states and 7061 transitions. [2021-03-11 14:45:01,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 7061 transitions. [2021-03-11 14:45:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:01,430 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:01,430 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:01,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable840 [2021-03-11 14:45:01,430 INFO L428 AbstractCegarLoop]: === Iteration 842 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:01,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1061758582, now seen corresponding path program 834 times [2021-03-11 14:45:01,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:01,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028801406] [2021-03-11 14:45:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:01,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:01,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:01,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:01,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:01,471 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:01,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:01,515 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:01,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:01,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:01,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:01,670 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:01,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:01,772 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:01,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:01,887 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:01,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:02,042 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-11 14:45:02,047 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:02,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:02,230 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:02,236 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:02,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:02,399 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-03-11 14:45:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:02,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028801406] [2021-03-11 14:45:02,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:02,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:02,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395693646] [2021-03-11 14:45:02,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:02,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:02,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:02,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:02,403 INFO L87 Difference]: Start difference. First operand 1586 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:02,977 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:45:03,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:03,048 INFO L93 Difference]: Finished difference Result 2992 states and 11783 transitions. [2021-03-11 14:45:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:03,053 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:03,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:03,061 INFO L225 Difference]: With dead ends: 2992 [2021-03-11 14:45:03,061 INFO L226 Difference]: Without dead ends: 2962 [2021-03-11 14:45:03,061 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1139.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:03,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-03-11 14:45:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1573. [2021-03-11 14:45:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.4726463104325695) internal successors, (7031), 1572 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7031 transitions. [2021-03-11 14:45:03,113 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7031 transitions. Word has length 28 [2021-03-11 14:45:03,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:03,113 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7031 transitions. [2021-03-11 14:45:03,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7031 transitions. [2021-03-11 14:45:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:03,115 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:03,115 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:03,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable841 [2021-03-11 14:45:03,115 INFO L428 AbstractCegarLoop]: === Iteration 843 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:03,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:03,116 INFO L82 PathProgramCache]: Analyzing trace with hash 383812012, now seen corresponding path program 835 times [2021-03-11 14:45:03,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:03,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142741929] [2021-03-11 14:45:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:03,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:03,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:03,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:03,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:03,162 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:03,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:03,219 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:03,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:03,293 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:03,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:03,392 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:03,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:03,495 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:45:03,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:45:03,601 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:45:03,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:45:03,729 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:03,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:03,879 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:03,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:04,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142741929] [2021-03-11 14:45:04,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:04,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:04,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028029309] [2021-03-11 14:45:04,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:04,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:04,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:04,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:04,010 INFO L87 Difference]: Start difference. First operand 1573 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:04,470 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-03-11 14:45:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:04,522 INFO L93 Difference]: Finished difference Result 3015 states and 11843 transitions. [2021-03-11 14:45:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:04,527 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:04,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:04,536 INFO L225 Difference]: With dead ends: 3015 [2021-03-11 14:45:04,536 INFO L226 Difference]: Without dead ends: 2995 [2021-03-11 14:45:04,536 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 950.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:04,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2021-03-11 14:45:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1593. [2021-03-11 14:45:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1592 states have (on average 4.44786432160804) internal successors, (7081), 1592 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 7081 transitions. [2021-03-11 14:45:04,591 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 7081 transitions. Word has length 28 [2021-03-11 14:45:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:04,592 INFO L480 AbstractCegarLoop]: Abstraction has 1593 states and 7081 transitions. [2021-03-11 14:45:04,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 7081 transitions. [2021-03-11 14:45:04,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:04,594 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:04,595 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:04,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable842 [2021-03-11 14:45:04,595 INFO L428 AbstractCegarLoop]: === Iteration 844 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:04,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:04,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1128514510, now seen corresponding path program 836 times [2021-03-11 14:45:04,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:04,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125085727] [2021-03-11 14:45:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:04,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:04,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:04,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:04,640 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:04,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:04,685 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:04,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:04,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:04,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:04,831 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:04,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:04,931 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:45:04,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:45:05,043 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:45:05,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:45:05,173 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:05,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:05,321 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:05,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:05,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125085727] [2021-03-11 14:45:05,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:05,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:05,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328767001] [2021-03-11 14:45:05,457 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:05,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:05,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:05,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:05,457 INFO L87 Difference]: Start difference. First operand 1593 states and 7081 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:05,973 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:45:06,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:06,026 INFO L93 Difference]: Finished difference Result 3013 states and 11831 transitions. [2021-03-11 14:45:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:06,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:06,040 INFO L225 Difference]: With dead ends: 3013 [2021-03-11 14:45:06,040 INFO L226 Difference]: Without dead ends: 2985 [2021-03-11 14:45:06,040 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1043.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:06,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2021-03-11 14:45:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1583. [2021-03-11 14:45:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.459544879898862) internal successors, (7055), 1582 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:06,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7055 transitions. [2021-03-11 14:45:06,094 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7055 transitions. Word has length 28 [2021-03-11 14:45:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:06,094 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7055 transitions. [2021-03-11 14:45:06,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7055 transitions. [2021-03-11 14:45:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:06,097 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:06,097 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:06,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable843 [2021-03-11 14:45:06,098 INFO L428 AbstractCegarLoop]: === Iteration 845 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:06,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:06,098 INFO L82 PathProgramCache]: Analyzing trace with hash -151417790, now seen corresponding path program 837 times [2021-03-11 14:45:06,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:06,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361818465] [2021-03-11 14:45:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:06,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:06,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:06,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:06,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:06,140 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:06,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:06,177 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:06,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:06,237 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:06,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:06,318 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:06,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:06,420 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:45:06,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:45:06,534 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:06,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:06,664 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:06,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:06,826 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:06,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:06,989 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:06,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361818465] [2021-03-11 14:45:06,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:06,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:06,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206447912] [2021-03-11 14:45:06,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:06,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:06,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:06,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:06,992 INFO L87 Difference]: Start difference. First operand 1583 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:07,410 INFO L93 Difference]: Finished difference Result 3012 states and 11828 transitions. [2021-03-11 14:45:07,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:07,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:07,422 INFO L225 Difference]: With dead ends: 3012 [2021-03-11 14:45:07,422 INFO L226 Difference]: Without dead ends: 2992 [2021-03-11 14:45:07,422 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 945.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-03-11 14:45:07,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 1591. [2021-03-11 14:45:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1590 states have (on average 4.445911949685534) internal successors, (7069), 1590 states have internal predecessors, (7069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 7069 transitions. [2021-03-11 14:45:07,485 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 7069 transitions. Word has length 28 [2021-03-11 14:45:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:07,485 INFO L480 AbstractCegarLoop]: Abstraction has 1591 states and 7069 transitions. [2021-03-11 14:45:07,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 7069 transitions. [2021-03-11 14:45:07,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:07,488 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:07,488 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:07,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable844 [2021-03-11 14:45:07,488 INFO L428 AbstractCegarLoop]: === Iteration 846 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:07,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:07,488 INFO L82 PathProgramCache]: Analyzing trace with hash 21829902, now seen corresponding path program 838 times [2021-03-11 14:45:07,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:07,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544940241] [2021-03-11 14:45:07,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:07,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:07,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:07,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:07,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:07,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:07,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:07,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:07,620 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:07,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:07,702 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:07,808 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:45:07,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:45:07,924 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:07,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:08,074 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:08,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:08,224 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:08,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:08,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544940241] [2021-03-11 14:45:08,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:08,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:08,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584443733] [2021-03-11 14:45:08,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:08,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:08,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:08,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:08,351 INFO L87 Difference]: Start difference. First operand 1591 states and 7069 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:08,787 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:08,852 INFO L93 Difference]: Finished difference Result 3009 states and 11815 transitions. [2021-03-11 14:45:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:08,866 INFO L225 Difference]: With dead ends: 3009 [2021-03-11 14:45:08,867 INFO L226 Difference]: Without dead ends: 2984 [2021-03-11 14:45:08,867 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1011.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:08,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2021-03-11 14:45:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1583. [2021-03-11 14:45:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.45448798988622) internal successors, (7047), 1582 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7047 transitions. [2021-03-11 14:45:08,920 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7047 transitions. Word has length 28 [2021-03-11 14:45:08,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:08,920 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7047 transitions. [2021-03-11 14:45:08,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:08,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7047 transitions. [2021-03-11 14:45:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:08,923 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:08,923 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:08,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable845 [2021-03-11 14:45:08,923 INFO L428 AbstractCegarLoop]: === Iteration 847 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:08,923 INFO L82 PathProgramCache]: Analyzing trace with hash -2090741630, now seen corresponding path program 839 times [2021-03-11 14:45:08,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:08,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335742068] [2021-03-11 14:45:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:08,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:08,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:08,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:08,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:08,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:08,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:09,006 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:09,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:09,062 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:09,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:09,133 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:09,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:09,227 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:45:09,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:45:09,333 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:09,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:09,456 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:09,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:09,606 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:09,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:09,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:09,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335742068] [2021-03-11 14:45:09,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:09,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:09,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962632985] [2021-03-11 14:45:09,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:09,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:09,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:09,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:09,735 INFO L87 Difference]: Start difference. First operand 1583 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:10,306 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-11 14:45:10,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:10,349 INFO L93 Difference]: Finished difference Result 3007 states and 11812 transitions. [2021-03-11 14:45:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:10,364 INFO L225 Difference]: With dead ends: 3007 [2021-03-11 14:45:10,364 INFO L226 Difference]: Without dead ends: 2989 [2021-03-11 14:45:10,365 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 983.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:10,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-03-11 14:45:10,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1590. [2021-03-11 14:45:10,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 4.443045940843298) internal successors, (7060), 1589 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 7060 transitions. [2021-03-11 14:45:10,422 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 7060 transitions. Word has length 28 [2021-03-11 14:45:10,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:10,422 INFO L480 AbstractCegarLoop]: Abstraction has 1590 states and 7060 transitions. [2021-03-11 14:45:10,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:10,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 7060 transitions. [2021-03-11 14:45:10,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:10,425 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:10,425 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:10,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable846 [2021-03-11 14:45:10,425 INFO L428 AbstractCegarLoop]: === Iteration 848 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:10,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1632770860, now seen corresponding path program 840 times [2021-03-11 14:45:10,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:10,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34239973] [2021-03-11 14:45:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:10,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:10,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:10,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:10,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:10,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:10,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:10,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:10,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:10,567 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 14:45:10,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 14:45:10,645 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 14:45:10,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 14:45:10,734 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 14:45:10,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:45:10,846 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:10,960 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:10,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:11,092 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:11,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:11,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34239973] [2021-03-11 14:45:11,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:11,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:11,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325353426] [2021-03-11 14:45:11,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:11,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:11,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:11,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:11,220 INFO L87 Difference]: Start difference. First operand 1590 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:11,806 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-03-11 14:45:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:11,909 INFO L93 Difference]: Finished difference Result 3006 states and 11803 transitions. [2021-03-11 14:45:11,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:11,915 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:11,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:11,924 INFO L225 Difference]: With dead ends: 3006 [2021-03-11 14:45:11,924 INFO L226 Difference]: Without dead ends: 2952 [2021-03-11 14:45:11,924 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 995.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:11,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-03-11 14:45:11,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1553. [2021-03-11 14:45:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1552 states have (on average 4.501932989690721) internal successors, (6987), 1552 states have internal predecessors, (6987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 6987 transitions. [2021-03-11 14:45:11,979 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 6987 transitions. Word has length 28 [2021-03-11 14:45:11,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:11,979 INFO L480 AbstractCegarLoop]: Abstraction has 1553 states and 6987 transitions. [2021-03-11 14:45:11,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 6987 transitions. [2021-03-11 14:45:11,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:11,982 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:11,982 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:11,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable847 [2021-03-11 14:45:11,982 INFO L428 AbstractCegarLoop]: === Iteration 849 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:11,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:11,983 INFO L82 PathProgramCache]: Analyzing trace with hash -471497986, now seen corresponding path program 841 times [2021-03-11 14:45:11,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:11,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723834719] [2021-03-11 14:45:11,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:11,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:11,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:11,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:12,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:12,026 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:12,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:12,074 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:12,131 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:12,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:12,210 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:12,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:12,310 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:12,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:12,491 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:12,495 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:12,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:12,639 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:12,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:12,803 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:12,808 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:12,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:12,959 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:12,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723834719] [2021-03-11 14:45:12,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:12,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:12,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67964573] [2021-03-11 14:45:12,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:12,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:12,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:12,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:12,962 INFO L87 Difference]: Start difference. First operand 1553 states and 6987 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:13,558 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:13,606 INFO L93 Difference]: Finished difference Result 2917 states and 11586 transitions. [2021-03-11 14:45:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:13,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:13,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:13,619 INFO L225 Difference]: With dead ends: 2917 [2021-03-11 14:45:13,619 INFO L226 Difference]: Without dead ends: 2902 [2021-03-11 14:45:13,619 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1142.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:13,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2021-03-11 14:45:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 1576. [2021-03-11 14:45:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.492063492063492) internal successors, (7075), 1575 states have internal predecessors, (7075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7075 transitions. [2021-03-11 14:45:13,674 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7075 transitions. Word has length 28 [2021-03-11 14:45:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:13,674 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7075 transitions. [2021-03-11 14:45:13,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7075 transitions. [2021-03-11 14:45:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:13,677 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:13,677 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:13,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable848 [2021-03-11 14:45:13,677 INFO L428 AbstractCegarLoop]: === Iteration 850 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:13,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:13,677 INFO L82 PathProgramCache]: Analyzing trace with hash 273204512, now seen corresponding path program 842 times [2021-03-11 14:45:13,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:13,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885649447] [2021-03-11 14:45:13,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:13,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:13,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:13,717 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:13,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:13,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:13,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:13,822 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:13,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:13,902 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:13,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:14,005 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:14,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:14,195 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:14,199 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:14,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:14,342 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:14,488 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:14,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:14,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885649447] [2021-03-11 14:45:14,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:14,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:14,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651805829] [2021-03-11 14:45:14,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:14,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:14,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:14,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:14,624 INFO L87 Difference]: Start difference. First operand 1576 states and 7075 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:15,160 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:15,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:15,217 INFO L93 Difference]: Finished difference Result 2918 states and 11583 transitions. [2021-03-11 14:45:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:15,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:15,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:15,230 INFO L225 Difference]: With dead ends: 2918 [2021-03-11 14:45:15,231 INFO L226 Difference]: Without dead ends: 2897 [2021-03-11 14:45:15,231 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1109.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2021-03-11 14:45:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1571. [2021-03-11 14:45:15,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.497452229299363) internal successors, (7061), 1570 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7061 transitions. [2021-03-11 14:45:15,283 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7061 transitions. Word has length 28 [2021-03-11 14:45:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:15,283 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7061 transitions. [2021-03-11 14:45:15,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7061 transitions. [2021-03-11 14:45:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:15,286 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:15,286 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:15,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable849 [2021-03-11 14:45:15,286 INFO L428 AbstractCegarLoop]: === Iteration 851 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:15,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:15,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1139442972, now seen corresponding path program 843 times [2021-03-11 14:45:15,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:15,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479043617] [2021-03-11 14:45:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:15,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:15,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:15,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:15,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:15,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:15,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:15,368 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:15,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:15,415 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:15,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:15,484 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:15,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:15,575 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:15,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:15,749 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:15,753 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:15,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:15,959 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:45:15,963 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:15,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:16,121 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:16,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:16,270 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:16,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479043617] [2021-03-11 14:45:16,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:16,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:16,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803056022] [2021-03-11 14:45:16,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:16,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:16,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:16,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:16,273 INFO L87 Difference]: Start difference. First operand 1571 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:16,859 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:16,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:16,903 INFO L93 Difference]: Finished difference Result 2922 states and 11590 transitions. [2021-03-11 14:45:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:16,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:16,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:16,916 INFO L225 Difference]: With dead ends: 2922 [2021-03-11 14:45:16,916 INFO L226 Difference]: Without dead ends: 2907 [2021-03-11 14:45:16,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1146.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:16,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-03-11 14:45:16,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1577. [2021-03-11 14:45:16,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.4873096446700504) internal successors, (7072), 1576 states have internal predecessors, (7072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7072 transitions. [2021-03-11 14:45:16,969 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7072 transitions. Word has length 28 [2021-03-11 14:45:16,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:16,969 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7072 transitions. [2021-03-11 14:45:16,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:16,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7072 transitions. [2021-03-11 14:45:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:16,972 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:16,972 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:16,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable850 [2021-03-11 14:45:16,973 INFO L428 AbstractCegarLoop]: === Iteration 852 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:16,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:16,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1666119328, now seen corresponding path program 844 times [2021-03-11 14:45:16,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:16,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8722524] [2021-03-11 14:45:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:16,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:16,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:16,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:16,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:17,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:17,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:17,056 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:17,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:17,114 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:17,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:17,188 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:17,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:17,286 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:17,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:17,454 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:17,457 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:17,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:17,644 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:45:17,647 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:17,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:17,788 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:17,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:17,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8722524] [2021-03-11 14:45:17,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:17,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:17,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242051169] [2021-03-11 14:45:17,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:17,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:17,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:17,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:17,899 INFO L87 Difference]: Start difference. First operand 1577 states and 7072 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:18,341 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:45:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:18,408 INFO L93 Difference]: Finished difference Result 2927 states and 11594 transitions. [2021-03-11 14:45:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:18,415 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:18,424 INFO L225 Difference]: With dead ends: 2927 [2021-03-11 14:45:18,424 INFO L226 Difference]: Without dead ends: 2901 [2021-03-11 14:45:18,424 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1004.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2021-03-11 14:45:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1571. [2021-03-11 14:45:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.493630573248407) internal successors, (7055), 1570 states have internal predecessors, (7055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7055 transitions. [2021-03-11 14:45:18,477 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7055 transitions. Word has length 28 [2021-03-11 14:45:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:18,477 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7055 transitions. [2021-03-11 14:45:18,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7055 transitions. [2021-03-11 14:45:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:18,480 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:18,480 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:18,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable851 [2021-03-11 14:45:18,480 INFO L428 AbstractCegarLoop]: === Iteration 853 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:18,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:18,480 INFO L82 PathProgramCache]: Analyzing trace with hash -799880868, now seen corresponding path program 845 times [2021-03-11 14:45:18,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:18,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216987949] [2021-03-11 14:45:18,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:18,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:18,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:18,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:18,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:18,519 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:18,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:18,562 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:18,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:18,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:18,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:18,685 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:18,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:18,774 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:18,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:18,952 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:18,957 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:18,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:19,177 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:19,181 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:19,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:19,322 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:19,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:19,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216987949] [2021-03-11 14:45:19,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:19,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:19,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241768067] [2021-03-11 14:45:19,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:19,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:19,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:19,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:19,450 INFO L87 Difference]: Start difference. First operand 1571 states and 7055 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:20,109 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:20,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:20,158 INFO L93 Difference]: Finished difference Result 2925 states and 11591 transitions. [2021-03-11 14:45:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:20,173 INFO L225 Difference]: With dead ends: 2925 [2021-03-11 14:45:20,173 INFO L226 Difference]: Without dead ends: 2909 [2021-03-11 14:45:20,173 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1153.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:20,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2021-03-11 14:45:20,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1578. [2021-03-11 14:45:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.481927710843373) internal successors, (7068), 1577 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:20,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7068 transitions. [2021-03-11 14:45:20,227 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7068 transitions. Word has length 28 [2021-03-11 14:45:20,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:20,227 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7068 transitions. [2021-03-11 14:45:20,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:20,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7068 transitions. [2021-03-11 14:45:20,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:20,230 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:20,230 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:20,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable852 [2021-03-11 14:45:20,230 INFO L428 AbstractCegarLoop]: === Iteration 854 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:20,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:20,230 INFO L82 PathProgramCache]: Analyzing trace with hash -55178370, now seen corresponding path program 846 times [2021-03-11 14:45:20,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:20,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874716069] [2021-03-11 14:45:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:20,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:20,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:20,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:20,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:20,278 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:20,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:20,330 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:20,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:20,398 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:20,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:20,479 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:20,573 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:20,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:20,768 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:20,773 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:20,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:20,996 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:21,000 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:21,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:21,154 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:21,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:21,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874716069] [2021-03-11 14:45:21,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:21,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:21,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576549002] [2021-03-11 14:45:21,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:21,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:21,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:21,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:21,285 INFO L87 Difference]: Start difference. First operand 1578 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:21,716 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:45:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:21,772 INFO L93 Difference]: Finished difference Result 2929 states and 11592 transitions. [2021-03-11 14:45:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:21,786 INFO L225 Difference]: With dead ends: 2929 [2021-03-11 14:45:21,786 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:45:21,786 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1108.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:21,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:45:21,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1565. [2021-03-11 14:45:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.5) internal successors, (7038), 1564 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7038 transitions. [2021-03-11 14:45:21,838 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7038 transitions. Word has length 28 [2021-03-11 14:45:21,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:21,838 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7038 transitions. [2021-03-11 14:45:21,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:21,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7038 transitions. [2021-03-11 14:45:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:21,841 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:21,841 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:21,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable853 [2021-03-11 14:45:21,842 INFO L428 AbstractCegarLoop]: === Iteration 855 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:21,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:21,842 INFO L82 PathProgramCache]: Analyzing trace with hash 248514488, now seen corresponding path program 847 times [2021-03-11 14:45:21,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:21,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748440966] [2021-03-11 14:45:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:21,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:21,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:21,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:21,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:21,881 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:21,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:21,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:21,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:21,975 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:21,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:22,055 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:22,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:22,153 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:45:22,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:45:22,268 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:22,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:22,392 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:22,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:22,536 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:22,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:22,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748440966] [2021-03-11 14:45:22,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:22,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:22,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908152501] [2021-03-11 14:45:22,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:22,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:22,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:22,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:22,667 INFO L87 Difference]: Start difference. First operand 1565 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:23,264 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:23,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:23,314 INFO L93 Difference]: Finished difference Result 2912 states and 11570 transitions. [2021-03-11 14:45:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:23,320 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:23,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:23,329 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:45:23,330 INFO L226 Difference]: Without dead ends: 2897 [2021-03-11 14:45:23,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1005.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:23,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2021-03-11 14:45:23,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1575. [2021-03-11 14:45:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.489199491740788) internal successors, (7066), 1574 states have internal predecessors, (7066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:23,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7066 transitions. [2021-03-11 14:45:23,387 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7066 transitions. Word has length 28 [2021-03-11 14:45:23,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:23,387 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7066 transitions. [2021-03-11 14:45:23,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:23,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7066 transitions. [2021-03-11 14:45:23,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:23,390 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:23,390 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:23,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable854 [2021-03-11 14:45:23,390 INFO L428 AbstractCegarLoop]: === Iteration 856 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:23,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:23,391 INFO L82 PathProgramCache]: Analyzing trace with hash 993216986, now seen corresponding path program 848 times [2021-03-11 14:45:23,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:23,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671101845] [2021-03-11 14:45:23,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:23,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:23,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:23,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:23,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:23,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:23,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:23,484 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:23,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:23,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:23,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:23,631 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:23,740 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:45:23,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:45:23,864 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:23,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:23,992 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:23,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:24,136 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:24,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:24,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671101845] [2021-03-11 14:45:24,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:24,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:24,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763047628] [2021-03-11 14:45:24,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:24,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:24,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:24,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:24,265 INFO L87 Difference]: Start difference. First operand 1575 states and 7066 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:24,948 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:25,005 INFO L93 Difference]: Finished difference Result 2913 states and 11567 transitions. [2021-03-11 14:45:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:25,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:25,021 INFO L225 Difference]: With dead ends: 2913 [2021-03-11 14:45:25,021 INFO L226 Difference]: Without dead ends: 2892 [2021-03-11 14:45:25,022 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1057.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:25,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2021-03-11 14:45:25,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 1570. [2021-03-11 14:45:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.494582536647546) internal successors, (7052), 1569 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7052 transitions. [2021-03-11 14:45:25,078 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7052 transitions. Word has length 28 [2021-03-11 14:45:25,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:25,078 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7052 transitions. [2021-03-11 14:45:25,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7052 transitions. [2021-03-11 14:45:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:25,081 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:25,081 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:25,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable855 [2021-03-11 14:45:25,081 INFO L428 AbstractCegarLoop]: === Iteration 857 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:25,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:25,081 INFO L82 PathProgramCache]: Analyzing trace with hash -824570892, now seen corresponding path program 849 times [2021-03-11 14:45:25,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:25,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205652198] [2021-03-11 14:45:25,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:25,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:25,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:25,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:25,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:25,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:25,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:25,176 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:25,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:25,243 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:25,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:25,317 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:25,408 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:45:25,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:45:25,524 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:45:25,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:45:25,762 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:25,766 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:25,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:25,931 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:25,936 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:25,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:26,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205652198] [2021-03-11 14:45:26,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:26,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:26,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796554497] [2021-03-11 14:45:26,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:26,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:26,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:26,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:26,083 INFO L87 Difference]: Start difference. First operand 1570 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:26,932 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:26,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:26,975 INFO L93 Difference]: Finished difference Result 2914 states and 11569 transitions. [2021-03-11 14:45:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:26,980 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:26,988 INFO L225 Difference]: With dead ends: 2914 [2021-03-11 14:45:26,988 INFO L226 Difference]: Without dead ends: 2899 [2021-03-11 14:45:26,989 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1155.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:27,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-03-11 14:45:27,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1575. [2021-03-11 14:45:27,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.486022871664549) internal successors, (7061), 1574 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7061 transitions. [2021-03-11 14:45:27,040 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7061 transitions. Word has length 28 [2021-03-11 14:45:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:27,040 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7061 transitions. [2021-03-11 14:45:27,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:27,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7061 transitions. [2021-03-11 14:45:27,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:27,043 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:27,043 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:27,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable856 [2021-03-11 14:45:27,043 INFO L428 AbstractCegarLoop]: === Iteration 858 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:27,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1409536602, now seen corresponding path program 850 times [2021-03-11 14:45:27,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:27,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409756476] [2021-03-11 14:45:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:27,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:27,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:27,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:27,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:27,083 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:27,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:27,123 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:27,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:27,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:27,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:27,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:27,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:27,357 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:45:27,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:45:27,489 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:45:27,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:45:27,713 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:27,718 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:27,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:27,900 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:27,905 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:27,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:28,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409756476] [2021-03-11 14:45:28,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:28,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:28,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446720946] [2021-03-11 14:45:28,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:28,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:28,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:28,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:28,049 INFO L87 Difference]: Start difference. First operand 1575 states and 7061 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:28,779 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:45:28,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:28,835 INFO L93 Difference]: Finished difference Result 2917 states and 11570 transitions. [2021-03-11 14:45:28,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:28,841 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:28,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:28,850 INFO L225 Difference]: With dead ends: 2917 [2021-03-11 14:45:28,850 INFO L226 Difference]: Without dead ends: 2894 [2021-03-11 14:45:28,850 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1173.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-03-11 14:45:28,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 1570. [2021-03-11 14:45:28,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.491395793499044) internal successors, (7047), 1569 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:28,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7047 transitions. [2021-03-11 14:45:28,904 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7047 transitions. Word has length 28 [2021-03-11 14:45:28,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:28,904 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7047 transitions. [2021-03-11 14:45:28,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7047 transitions. [2021-03-11 14:45:28,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:28,908 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:28,908 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:28,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable857 [2021-03-11 14:45:28,908 INFO L428 AbstractCegarLoop]: === Iteration 859 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:28,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:28,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1531072564, now seen corresponding path program 851 times [2021-03-11 14:45:28,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:28,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783562164] [2021-03-11 14:45:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:28,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:28,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:28,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:28,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:28,954 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:28,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:28,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:28,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:29,050 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:29,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:29,111 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:29,189 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:45:29,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:45:29,279 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:29,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:29,384 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:29,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:29,538 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:29,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:29,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:29,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783562164] [2021-03-11 14:45:29,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:29,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:29,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560641959] [2021-03-11 14:45:29,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:29,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:29,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:29,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:29,681 INFO L87 Difference]: Start difference. First operand 1570 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:30,352 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:30,405 INFO L93 Difference]: Finished difference Result 2917 states and 11571 transitions. [2021-03-11 14:45:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:30,418 INFO L225 Difference]: With dead ends: 2917 [2021-03-11 14:45:30,418 INFO L226 Difference]: Without dead ends: 2901 [2021-03-11 14:45:30,418 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 956.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2021-03-11 14:45:30,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1576. [2021-03-11 14:45:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.4812698412698415) internal successors, (7058), 1575 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7058 transitions. [2021-03-11 14:45:30,470 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7058 transitions. Word has length 28 [2021-03-11 14:45:30,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:30,470 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7058 transitions. [2021-03-11 14:45:30,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7058 transitions. [2021-03-11 14:45:30,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:30,473 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:30,473 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:30,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable858 [2021-03-11 14:45:30,473 INFO L428 AbstractCegarLoop]: === Iteration 860 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:30,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:30,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1274489736, now seen corresponding path program 852 times [2021-03-11 14:45:30,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:30,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984897682] [2021-03-11 14:45:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:30,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:30,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:30,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:30,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:30,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:30,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:30,555 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:30,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:30,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:30,689 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:30,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:30,787 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:45:30,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:45:30,904 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:31,039 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:31,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:31,205 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:31,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984897682] [2021-03-11 14:45:31,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:31,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:31,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408647290] [2021-03-11 14:45:31,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:31,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:31,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:31,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:31,349 INFO L87 Difference]: Start difference. First operand 1576 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:31,996 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:45:32,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:32,066 INFO L93 Difference]: Finished difference Result 2919 states and 11569 transitions. [2021-03-11 14:45:32,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:32,071 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:32,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:32,081 INFO L225 Difference]: With dead ends: 2919 [2021-03-11 14:45:32,081 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:45:32,081 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1076.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:32,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:45:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1565. [2021-03-11 14:45:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.496803069053708) internal successors, (7033), 1564 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7033 transitions. [2021-03-11 14:45:32,138 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7033 transitions. Word has length 28 [2021-03-11 14:45:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:32,138 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7033 transitions. [2021-03-11 14:45:32,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7033 transitions. [2021-03-11 14:45:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:32,142 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:32,142 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:32,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable859 [2021-03-11 14:45:32,142 INFO L428 AbstractCegarLoop]: === Iteration 861 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:32,142 INFO L82 PathProgramCache]: Analyzing trace with hash 259017592, now seen corresponding path program 853 times [2021-03-11 14:45:32,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:32,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038658121] [2021-03-11 14:45:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:32,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:32,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:32,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:32,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:32,192 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:32,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:32,247 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:32,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:32,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:32,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:32,391 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:32,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:32,481 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:32,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:32,666 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:32,670 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:32,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:32,889 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:45:32,893 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:32,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:33,040 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:33,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:33,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038658121] [2021-03-11 14:45:33,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:33,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:33,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606777790] [2021-03-11 14:45:33,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:33,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:33,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:33,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:33,178 INFO L87 Difference]: Start difference. First operand 1565 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:33,857 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:33,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:33,905 INFO L93 Difference]: Finished difference Result 2928 states and 11597 transitions. [2021-03-11 14:45:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:33,910 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:33,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:33,919 INFO L225 Difference]: With dead ends: 2928 [2021-03-11 14:45:33,919 INFO L226 Difference]: Without dead ends: 2913 [2021-03-11 14:45:33,919 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1234.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:33,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-03-11 14:45:33,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 1578. [2021-03-11 14:45:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.481927710843373) internal successors, (7068), 1577 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7068 transitions. [2021-03-11 14:45:33,972 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7068 transitions. Word has length 28 [2021-03-11 14:45:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:33,972 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7068 transitions. [2021-03-11 14:45:33,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7068 transitions. [2021-03-11 14:45:33,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:33,975 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:33,975 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:33,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable860 [2021-03-11 14:45:33,975 INFO L428 AbstractCegarLoop]: === Iteration 862 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:33,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:33,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1748422588, now seen corresponding path program 854 times [2021-03-11 14:45:33,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:33,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023149744] [2021-03-11 14:45:33,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:33,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:33,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:33,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:33,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:34,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:34,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:34,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:34,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:34,110 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:34,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:34,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:34,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:34,262 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:34,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:34,422 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:34,425 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:34,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:34,618 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:45:34,622 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:34,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:34,783 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:34,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:34,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023149744] [2021-03-11 14:45:34,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:34,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:34,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775513523] [2021-03-11 14:45:34,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:34,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:34,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:34,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:34,920 INFO L87 Difference]: Start difference. First operand 1578 states and 7068 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:35,430 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:45:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:35,483 INFO L93 Difference]: Finished difference Result 2933 states and 11601 transitions. [2021-03-11 14:45:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:35,488 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:35,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:35,497 INFO L225 Difference]: With dead ends: 2933 [2021-03-11 14:45:35,497 INFO L226 Difference]: Without dead ends: 2907 [2021-03-11 14:45:35,497 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1015.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:35,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-03-11 14:45:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1572. [2021-03-11 14:45:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.488224061107575) internal successors, (7051), 1571 states have internal predecessors, (7051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:35,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7051 transitions. [2021-03-11 14:45:35,550 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7051 transitions. Word has length 28 [2021-03-11 14:45:35,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:35,550 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7051 transitions. [2021-03-11 14:45:35,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:35,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7051 transitions. [2021-03-11 14:45:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:35,553 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:35,553 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:35,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable861 [2021-03-11 14:45:35,553 INFO L428 AbstractCegarLoop]: === Iteration 863 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:35,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:35,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1869958550, now seen corresponding path program 855 times [2021-03-11 14:45:35,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:35,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724880366] [2021-03-11 14:45:35,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:35,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:35,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:35,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:35,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:35,592 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:35,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:35,631 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:35,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:35,685 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:35,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:35,751 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:35,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:35,842 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:35,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:36,031 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:36,036 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:45:36,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:45:36,246 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:36,251 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:36,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:36,394 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:36,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:36,550 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:36,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724880366] [2021-03-11 14:45:36,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:36,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:36,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558496702] [2021-03-11 14:45:36,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:36,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:36,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:36,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:36,553 INFO L87 Difference]: Start difference. First operand 1572 states and 7051 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:37,330 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:37,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:37,375 INFO L93 Difference]: Finished difference Result 2925 states and 11586 transitions. [2021-03-11 14:45:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:37,380 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:37,389 INFO L225 Difference]: With dead ends: 2925 [2021-03-11 14:45:37,389 INFO L226 Difference]: Without dead ends: 2910 [2021-03-11 14:45:37,389 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1169.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2021-03-11 14:45:37,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 1577. [2021-03-11 14:45:37,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.479695431472082) internal successors, (7060), 1576 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7060 transitions. [2021-03-11 14:45:37,440 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7060 transitions. Word has length 28 [2021-03-11 14:45:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:37,441 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7060 transitions. [2021-03-11 14:45:37,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:37,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7060 transitions. [2021-03-11 14:45:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:37,443 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:37,443 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:37,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable862 [2021-03-11 14:45:37,444 INFO L428 AbstractCegarLoop]: === Iteration 864 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:37,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:37,444 INFO L82 PathProgramCache]: Analyzing trace with hash -190901252, now seen corresponding path program 856 times [2021-03-11 14:45:37,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:37,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391662404] [2021-03-11 14:45:37,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:37,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:37,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:37,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:37,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:37,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:37,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:37,526 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:37,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:37,586 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:37,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:37,662 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:37,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:37,761 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:37,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:37,956 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:37,961 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:45:37,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:45:38,178 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:38,182 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:38,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:38,332 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:38,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:38,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391662404] [2021-03-11 14:45:38,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:38,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:38,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213699014] [2021-03-11 14:45:38,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:38,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:38,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:38,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:38,465 INFO L87 Difference]: Start difference. First operand 1577 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:39,100 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:45:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:39,162 INFO L93 Difference]: Finished difference Result 2928 states and 11587 transitions. [2021-03-11 14:45:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:39,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:39,176 INFO L225 Difference]: With dead ends: 2928 [2021-03-11 14:45:39,176 INFO L226 Difference]: Without dead ends: 2905 [2021-03-11 14:45:39,177 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1227.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-03-11 14:45:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 1572. [2021-03-11 14:45:39,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.485041374920433) internal successors, (7046), 1571 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7046 transitions. [2021-03-11 14:45:39,229 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7046 transitions. Word has length 28 [2021-03-11 14:45:39,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:39,229 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7046 transitions. [2021-03-11 14:45:39,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:39,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7046 transitions. [2021-03-11 14:45:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:39,232 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:39,232 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:39,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable863 [2021-03-11 14:45:39,232 INFO L428 AbstractCegarLoop]: === Iteration 865 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:39,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:39,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2008689130, now seen corresponding path program 857 times [2021-03-11 14:45:39,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:39,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857453593] [2021-03-11 14:45:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:39,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:39,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:39,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:39,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:39,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:39,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:39,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:39,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:39,375 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:39,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:39,454 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:39,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:39,547 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:39,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:39,707 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:39,711 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:45:39,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:45:39,870 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-11 14:45:39,875 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:39,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:40,037 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:40,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:40,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857453593] [2021-03-11 14:45:40,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:40,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:40,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850015513] [2021-03-11 14:45:40,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:40,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:40,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:40,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:40,173 INFO L87 Difference]: Start difference. First operand 1572 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:40,929 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:45:40,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:40,981 INFO L93 Difference]: Finished difference Result 2940 states and 11611 transitions. [2021-03-11 14:45:40,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:40,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:40,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:40,999 INFO L225 Difference]: With dead ends: 2940 [2021-03-11 14:45:41,000 INFO L226 Difference]: Without dead ends: 2920 [2021-03-11 14:45:41,000 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1007.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:41,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-03-11 14:45:41,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1582. [2021-03-11 14:45:41,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 4.467425679949399) internal successors, (7063), 1581 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:41,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 7063 transitions. [2021-03-11 14:45:41,058 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 7063 transitions. Word has length 28 [2021-03-11 14:45:41,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:41,058 INFO L480 AbstractCegarLoop]: Abstraction has 1582 states and 7063 transitions. [2021-03-11 14:45:41,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:41,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 7063 transitions. [2021-03-11 14:45:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:41,061 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:41,061 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:41,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable864 [2021-03-11 14:45:41,061 INFO L428 AbstractCegarLoop]: === Iteration 866 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:41,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:41,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1263986632, now seen corresponding path program 858 times [2021-03-11 14:45:41,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:41,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647360304] [2021-03-11 14:45:41,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:41,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:41,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:41,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:41,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:41,112 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:41,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:41,160 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:41,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:41,224 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:41,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:41,303 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:41,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:41,408 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:41,603 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:41,607 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:45:41,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:45:41,743 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:41,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:41,919 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:41,924 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:41,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:42,081 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:42,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647360304] [2021-03-11 14:45:42,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:42,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:42,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735398642] [2021-03-11 14:45:42,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:42,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:42,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:42,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:42,085 INFO L87 Difference]: Start difference. First operand 1582 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:42,772 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:45:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:42,854 INFO L93 Difference]: Finished difference Result 2938 states and 11599 transitions. [2021-03-11 14:45:42,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:42,861 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:42,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:42,871 INFO L225 Difference]: With dead ends: 2938 [2021-03-11 14:45:42,871 INFO L226 Difference]: Without dead ends: 2903 [2021-03-11 14:45:42,871 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1217.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:42,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-03-11 14:45:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1565. [2021-03-11 14:45:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.4923273657289) internal successors, (7026), 1564 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7026 transitions. [2021-03-11 14:45:42,930 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7026 transitions. Word has length 28 [2021-03-11 14:45:42,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:42,930 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7026 transitions. [2021-03-11 14:45:42,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7026 transitions. [2021-03-11 14:45:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:42,933 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:42,933 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:42,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable865 [2021-03-11 14:45:42,933 INFO L428 AbstractCegarLoop]: === Iteration 867 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:42,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:42,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1014223194, now seen corresponding path program 859 times [2021-03-11 14:45:42,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:42,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172233773] [2021-03-11 14:45:42,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:42,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:42,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:42,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:42,982 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:42,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:43,034 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:43,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:43,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:43,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:43,191 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:43,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:43,307 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:43,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:43,447 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:43,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:43,655 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:43,659 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:43,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:43,828 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:43,833 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:43,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:43,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:43,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172233773] [2021-03-11 14:45:43,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:43,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:43,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113560171] [2021-03-11 14:45:43,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:43,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:43,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:43,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:43,971 INFO L87 Difference]: Start difference. First operand 1565 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:44,583 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:44,642 INFO L93 Difference]: Finished difference Result 2935 states and 11609 transitions. [2021-03-11 14:45:44,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:44,648 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:44,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:44,657 INFO L225 Difference]: With dead ends: 2935 [2021-03-11 14:45:44,657 INFO L226 Difference]: Without dead ends: 2919 [2021-03-11 14:45:44,657 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1201.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:44,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2021-03-11 14:45:44,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1580. [2021-03-11 14:45:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.475617479417353) internal successors, (7067), 1579 states have internal predecessors, (7067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:44,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7067 transitions. [2021-03-11 14:45:44,711 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7067 transitions. Word has length 28 [2021-03-11 14:45:44,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:44,711 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7067 transitions. [2021-03-11 14:45:44,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:44,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7067 transitions. [2021-03-11 14:45:44,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:44,714 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:44,714 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:44,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable866 [2021-03-11 14:45:44,714 INFO L428 AbstractCegarLoop]: === Iteration 868 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:44,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:44,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1758925692, now seen corresponding path program 860 times [2021-03-11 14:45:44,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:44,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354452341] [2021-03-11 14:45:44,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:44,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:44,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:44,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:44,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:44,761 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:44,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:44,808 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:44,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:44,867 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:44,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:44,948 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:44,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:45,053 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:45,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:45,171 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:45,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:45,414 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:45:45,419 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:45,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:45,577 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:45,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:45,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354452341] [2021-03-11 14:45:45,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:45,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:45,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275044188] [2021-03-11 14:45:45,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:45,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:45,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:45,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:45,698 INFO L87 Difference]: Start difference. First operand 1580 states and 7067 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:46,275 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:45:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:46,330 INFO L93 Difference]: Finished difference Result 2939 states and 11610 transitions. [2021-03-11 14:45:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:46,336 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:46,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:46,345 INFO L225 Difference]: With dead ends: 2939 [2021-03-11 14:45:46,345 INFO L226 Difference]: Without dead ends: 2912 [2021-03-11 14:45:46,345 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1047.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:46,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2021-03-11 14:45:46,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 1573. [2021-03-11 14:45:46,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.482824427480916) internal successors, (7047), 1572 states have internal predecessors, (7047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7047 transitions. [2021-03-11 14:45:46,400 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7047 transitions. Word has length 28 [2021-03-11 14:45:46,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:46,400 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7047 transitions. [2021-03-11 14:45:46,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:46,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7047 transitions. [2021-03-11 14:45:46,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:46,403 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:46,403 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:46,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable867 [2021-03-11 14:45:46,403 INFO L428 AbstractCegarLoop]: === Iteration 869 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1669803144, now seen corresponding path program 861 times [2021-03-11 14:45:46,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:46,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723522303] [2021-03-11 14:45:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:46,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:46,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:46,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:46,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:46,446 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:46,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:46,491 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:46,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:46,557 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:46,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:46,633 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:46,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:46,730 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:46,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:46,848 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:46,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:46,978 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:46,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:47,143 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:47,148 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:47,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:47,306 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:47,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723522303] [2021-03-11 14:45:47,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:47,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:47,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985506604] [2021-03-11 14:45:47,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:47,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:47,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:47,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:47,309 INFO L87 Difference]: Start difference. First operand 1573 states and 7047 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:47,893 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:47,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:47,937 INFO L93 Difference]: Finished difference Result 2932 states and 11597 transitions. [2021-03-11 14:45:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:47,942 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:47,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:47,949 INFO L225 Difference]: With dead ends: 2932 [2021-03-11 14:45:47,949 INFO L226 Difference]: Without dead ends: 2916 [2021-03-11 14:45:47,949 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1054.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-03-11 14:45:47,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1579. [2021-03-11 14:45:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 4.47275031685678) internal successors, (7058), 1578 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:48,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 7058 transitions. [2021-03-11 14:45:48,001 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 7058 transitions. Word has length 28 [2021-03-11 14:45:48,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:48,001 INFO L480 AbstractCegarLoop]: Abstraction has 1579 states and 7058 transitions. [2021-03-11 14:45:48,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 7058 transitions. [2021-03-11 14:45:48,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:48,004 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:48,004 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:48,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable868 [2021-03-11 14:45:48,004 INFO L428 AbstractCegarLoop]: === Iteration 870 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:48,004 INFO L82 PathProgramCache]: Analyzing trace with hash -180398148, now seen corresponding path program 862 times [2021-03-11 14:45:48,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:48,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560715065] [2021-03-11 14:45:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:48,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:48,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:48,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:48,040 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:48,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:48,076 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:48,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:48,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:48,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:48,189 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:48,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:48,282 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:48,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:48,390 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:48,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:48,552 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:48,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:48,724 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:48,729 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:48,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:48,878 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:48,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560715065] [2021-03-11 14:45:48,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:48,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:48,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686424706] [2021-03-11 14:45:48,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:48,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:48,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:48,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:48,881 INFO L87 Difference]: Start difference. First operand 1579 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:49,488 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:45:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:49,554 INFO L93 Difference]: Finished difference Result 2934 states and 11595 transitions. [2021-03-11 14:45:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:49,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:49,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:49,568 INFO L225 Difference]: With dead ends: 2934 [2021-03-11 14:45:49,568 INFO L226 Difference]: Without dead ends: 2910 [2021-03-11 14:45:49,568 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1078.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:49,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2021-03-11 14:45:49,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 1573. [2021-03-11 14:45:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.479007633587786) internal successors, (7041), 1572 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7041 transitions. [2021-03-11 14:45:49,623 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7041 transitions. Word has length 28 [2021-03-11 14:45:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:49,623 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7041 transitions. [2021-03-11 14:45:49,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7041 transitions. [2021-03-11 14:45:49,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:49,627 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:49,627 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:49,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable869 [2021-03-11 14:45:49,627 INFO L428 AbstractCegarLoop]: === Iteration 871 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:49,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:49,627 INFO L82 PathProgramCache]: Analyzing trace with hash 685840312, now seen corresponding path program 863 times [2021-03-11 14:45:49,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:49,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907346627] [2021-03-11 14:45:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:49,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:49,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:49,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:49,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:49,666 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:49,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:49,703 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:49,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:49,763 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:49,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:49,846 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:49,952 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:49,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:50,070 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:45:50,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:45:50,220 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:50,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:50,397 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:50,402 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:50,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:50,547 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:50,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907346627] [2021-03-11 14:45:50,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:50,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:50,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918212400] [2021-03-11 14:45:50,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:50,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:50,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:50,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:50,550 INFO L87 Difference]: Start difference. First operand 1573 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:50,994 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:45:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:51,043 INFO L93 Difference]: Finished difference Result 2944 states and 11614 transitions. [2021-03-11 14:45:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:51,050 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:51,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:51,059 INFO L225 Difference]: With dead ends: 2944 [2021-03-11 14:45:51,059 INFO L226 Difference]: Without dead ends: 2924 [2021-03-11 14:45:51,059 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 989.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:51,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-03-11 14:45:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1583. [2021-03-11 14:45:51,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 4.461441213653603) internal successors, (7058), 1582 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 7058 transitions. [2021-03-11 14:45:51,112 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 7058 transitions. Word has length 28 [2021-03-11 14:45:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:51,112 INFO L480 AbstractCegarLoop]: Abstraction has 1583 states and 7058 transitions. [2021-03-11 14:45:51,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 7058 transitions. [2021-03-11 14:45:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:51,115 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:51,115 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:51,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable870 [2021-03-11 14:45:51,115 INFO L428 AbstractCegarLoop]: === Iteration 872 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:51,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:51,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1430542810, now seen corresponding path program 864 times [2021-03-11 14:45:51,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:51,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099274417] [2021-03-11 14:45:51,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:51,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:51,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:51,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:51,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:51,154 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:51,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:51,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:51,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:51,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:51,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:51,328 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:45:51,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:45:51,432 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:45:51,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:45:51,552 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:45:51,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:45:51,696 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:51,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:51,860 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:51,865 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:51,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:52,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099274417] [2021-03-11 14:45:52,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:52,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:52,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982197039] [2021-03-11 14:45:52,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:52,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:52,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:52,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:52,009 INFO L87 Difference]: Start difference. First operand 1583 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:52,706 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:45:52,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:52,785 INFO L93 Difference]: Finished difference Result 2942 states and 11602 transitions. [2021-03-11 14:45:52,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:52,791 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:52,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:52,800 INFO L225 Difference]: With dead ends: 2942 [2021-03-11 14:45:52,800 INFO L226 Difference]: Without dead ends: 2899 [2021-03-11 14:45:52,800 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1082.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:52,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-03-11 14:45:52,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1558. [2021-03-11 14:45:52,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 4.500963391136802) internal successors, (7008), 1557 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 7008 transitions. [2021-03-11 14:45:52,856 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 7008 transitions. Word has length 28 [2021-03-11 14:45:52,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:52,856 INFO L480 AbstractCegarLoop]: Abstraction has 1558 states and 7008 transitions. [2021-03-11 14:45:52,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:52,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 7008 transitions. [2021-03-11 14:45:52,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:52,860 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:52,860 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:52,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable871 [2021-03-11 14:45:52,860 INFO L428 AbstractCegarLoop]: === Iteration 873 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:52,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:52,860 INFO L82 PathProgramCache]: Analyzing trace with hash -556215610, now seen corresponding path program 865 times [2021-03-11 14:45:52,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:52,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830429172] [2021-03-11 14:45:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:52,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:52,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:52,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:52,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:52,909 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:52,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:52,956 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:52,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:53,030 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:53,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:53,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:45:53,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:45:53,280 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:45:53,284 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:53,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:53,491 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:53,495 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:53,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:53,638 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:53,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:53,802 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:53,807 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:53,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:53,961 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:53,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830429172] [2021-03-11 14:45:53,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:53,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:53,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372595257] [2021-03-11 14:45:53,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:53,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:53,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:53,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:53,964 INFO L87 Difference]: Start difference. First operand 1558 states and 7008 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:54,623 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:54,671 INFO L93 Difference]: Finished difference Result 2889 states and 11495 transitions. [2021-03-11 14:45:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:54,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:54,686 INFO L225 Difference]: With dead ends: 2889 [2021-03-11 14:45:54,686 INFO L226 Difference]: Without dead ends: 2874 [2021-03-11 14:45:54,686 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1290.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:54,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2021-03-11 14:45:54,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 1573. [2021-03-11 14:45:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.489185750636132) internal successors, (7057), 1572 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7057 transitions. [2021-03-11 14:45:54,739 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7057 transitions. Word has length 28 [2021-03-11 14:45:54,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:54,739 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7057 transitions. [2021-03-11 14:45:54,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7057 transitions. [2021-03-11 14:45:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:54,743 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:54,743 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:54,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable872 [2021-03-11 14:45:54,743 INFO L428 AbstractCegarLoop]: === Iteration 874 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:54,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:54,743 INFO L82 PathProgramCache]: Analyzing trace with hash 188486888, now seen corresponding path program 866 times [2021-03-11 14:45:54,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:54,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482970438] [2021-03-11 14:45:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:54,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:54,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:54,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:54,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:54,792 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:54,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:54,837 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:54,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:54,894 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:54,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:54,975 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:45:54,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:45:55,127 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:45:55,132 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:55,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:55,329 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:55,333 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:45:55,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:45:55,485 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:55,651 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:55,655 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:55,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:55,802 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:45:55,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:55,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482970438] [2021-03-11 14:45:55,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:55,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:55,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305680941] [2021-03-11 14:45:55,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:55,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:55,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:55,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:55,805 INFO L87 Difference]: Start difference. First operand 1573 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:56,378 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:45:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:56,435 INFO L93 Difference]: Finished difference Result 2890 states and 11492 transitions. [2021-03-11 14:45:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:56,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:56,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:56,449 INFO L225 Difference]: With dead ends: 2890 [2021-03-11 14:45:56,450 INFO L226 Difference]: Without dead ends: 2869 [2021-03-11 14:45:56,450 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1229.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2021-03-11 14:45:56,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 1568. [2021-03-11 14:45:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.494575622208041) internal successors, (7043), 1567 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:56,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7043 transitions. [2021-03-11 14:45:56,500 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7043 transitions. Word has length 28 [2021-03-11 14:45:56,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:56,501 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7043 transitions. [2021-03-11 14:45:56,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7043 transitions. [2021-03-11 14:45:56,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:56,503 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:56,503 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:56,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable873 [2021-03-11 14:45:56,503 INFO L428 AbstractCegarLoop]: === Iteration 875 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:56,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1054725348, now seen corresponding path program 867 times [2021-03-11 14:45:56,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:56,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369913164] [2021-03-11 14:45:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:56,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:56,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:56,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:56,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:56,544 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:56,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:56,586 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:56,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:56,642 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:56,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:56,706 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:45:56,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:45:56,836 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:45:56,840 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:56,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:57,019 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:57,024 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:57,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:57,223 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:45:57,227 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:45:57,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:45:57,374 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:57,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:57,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:57,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369913164] [2021-03-11 14:45:57,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:57,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:57,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869585258] [2021-03-11 14:45:57,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:57,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:57,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:57,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:57,507 INFO L87 Difference]: Start difference. First operand 1568 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:58,021 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:45:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:58,058 INFO L93 Difference]: Finished difference Result 2894 states and 11499 transitions. [2021-03-11 14:45:58,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:58,063 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:58,070 INFO L225 Difference]: With dead ends: 2894 [2021-03-11 14:45:58,070 INFO L226 Difference]: Without dead ends: 2879 [2021-03-11 14:45:58,070 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1144.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:58,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-03-11 14:45:58,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1574. [2021-03-11 14:45:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.484424666242848) internal successors, (7054), 1573 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:58,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7054 transitions. [2021-03-11 14:45:58,120 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7054 transitions. Word has length 28 [2021-03-11 14:45:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:58,120 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7054 transitions. [2021-03-11 14:45:58,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:58,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7054 transitions. [2021-03-11 14:45:58,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:58,123 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:58,123 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:58,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable874 [2021-03-11 14:45:58,123 INFO L428 AbstractCegarLoop]: === Iteration 876 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:58,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:58,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1750836952, now seen corresponding path program 868 times [2021-03-11 14:45:58,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:58,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540269194] [2021-03-11 14:45:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:58,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:58,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:58,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:58,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:58,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:58,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:58,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:58,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:58,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:58,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:45:58,339 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:45:58,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:45:58,485 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:45:58,489 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:45:58,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:45:58,705 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:45:58,710 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:45:58,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:45:58,942 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:45:58,945 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:45:58,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:45:59,104 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:45:59,108 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:45:59,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:45:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:45:59,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540269194] [2021-03-11 14:45:59,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:45:59,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:45:59,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377295503] [2021-03-11 14:45:59,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:45:59,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:45:59,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:45:59,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:45:59,248 INFO L87 Difference]: Start difference. First operand 1574 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:59,702 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:45:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:45:59,766 INFO L93 Difference]: Finished difference Result 2899 states and 11503 transitions. [2021-03-11 14:45:59,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:45:59,771 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:45:59,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:45:59,780 INFO L225 Difference]: With dead ends: 2899 [2021-03-11 14:45:59,780 INFO L226 Difference]: Without dead ends: 2873 [2021-03-11 14:45:59,780 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1199.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:45:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2021-03-11 14:45:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 1568. [2021-03-11 14:45:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.490746649649011) internal successors, (7037), 1567 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:59,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7037 transitions. [2021-03-11 14:45:59,832 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7037 transitions. Word has length 28 [2021-03-11 14:45:59,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:45:59,832 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7037 transitions. [2021-03-11 14:45:59,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:45:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7037 transitions. [2021-03-11 14:45:59,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:45:59,835 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:45:59,835 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:45:59,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable875 [2021-03-11 14:45:59,835 INFO L428 AbstractCegarLoop]: === Iteration 877 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:45:59,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:45:59,835 INFO L82 PathProgramCache]: Analyzing trace with hash -884598492, now seen corresponding path program 869 times [2021-03-11 14:45:59,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:45:59,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406492161] [2021-03-11 14:45:59,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:45:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:45:59,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:59,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:45:59,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:45:59,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:45:59,876 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:45:59,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:45:59,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:45:59,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:45:59,974 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:45:59,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:00,046 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:00,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:00,196 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:00,201 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:00,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:00,384 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:46:00,388 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:00,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:00,598 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:00,601 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:00,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:00,762 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:00,766 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:00,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:00,913 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:00,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406492161] [2021-03-11 14:46:00,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:00,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:00,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565476733] [2021-03-11 14:46:00,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:00,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:00,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:00,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:00,916 INFO L87 Difference]: Start difference. First operand 1568 states and 7037 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:01,503 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:01,550 INFO L93 Difference]: Finished difference Result 2897 states and 11500 transitions. [2021-03-11 14:46:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:01,555 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:01,563 INFO L225 Difference]: With dead ends: 2897 [2021-03-11 14:46:01,563 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:46:01,563 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1269.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:01,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:46:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1575. [2021-03-11 14:46:01,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.479034307496823) internal successors, (7050), 1574 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:01,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7050 transitions. [2021-03-11 14:46:01,614 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7050 transitions. Word has length 28 [2021-03-11 14:46:01,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:01,614 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7050 transitions. [2021-03-11 14:46:01,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7050 transitions. [2021-03-11 14:46:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:01,618 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:01,618 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:01,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable876 [2021-03-11 14:46:01,618 INFO L428 AbstractCegarLoop]: === Iteration 878 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:01,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:01,618 INFO L82 PathProgramCache]: Analyzing trace with hash -139895994, now seen corresponding path program 870 times [2021-03-11 14:46:01,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:01,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341990716] [2021-03-11 14:46:01,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:01,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:01,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:01,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:01,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:01,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:01,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:01,698 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:01,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:01,751 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:01,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:01,823 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:01,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:01,953 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:01,956 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:01,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:02,137 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:46:02,142 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:02,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:02,371 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:02,376 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:46:02,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:46:02,551 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:02,555 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:02,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:02,699 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:02,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341990716] [2021-03-11 14:46:02,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:02,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:02,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920543343] [2021-03-11 14:46:02,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:02,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:02,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:02,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:02,702 INFO L87 Difference]: Start difference. First operand 1575 states and 7050 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:03,202 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:46:03,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:03,266 INFO L93 Difference]: Finished difference Result 2901 states and 11501 transitions. [2021-03-11 14:46:03,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:03,272 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:03,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:03,281 INFO L225 Difference]: With dead ends: 2901 [2021-03-11 14:46:03,281 INFO L226 Difference]: Without dead ends: 2868 [2021-03-11 14:46:03,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1156.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:03,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2021-03-11 14:46:03,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 1562. [2021-03-11 14:46:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 4.498398462524023) internal successors, (7022), 1561 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:03,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 7022 transitions. [2021-03-11 14:46:03,334 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 7022 transitions. Word has length 28 [2021-03-11 14:46:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:03,334 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 7022 transitions. [2021-03-11 14:46:03,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:03,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 7022 transitions. [2021-03-11 14:46:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:03,337 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:03,337 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:03,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable877 [2021-03-11 14:46:03,337 INFO L428 AbstractCegarLoop]: === Iteration 879 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:03,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:03,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1913959506, now seen corresponding path program 871 times [2021-03-11 14:46:03,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:03,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259858291] [2021-03-11 14:46:03,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:03,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:03,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:03,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:03,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:03,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:03,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:03,421 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:03,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:03,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:03,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:03,555 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:03,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:03,703 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:03,707 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:03,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:03,821 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:46:03,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:46:03,957 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:03,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:04,118 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:04,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:04,274 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:04,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:04,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259858291] [2021-03-11 14:46:04,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:04,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:04,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945663666] [2021-03-11 14:46:04,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:04,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:04,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:04,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:04,277 INFO L87 Difference]: Start difference. First operand 1562 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:04,907 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:04,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:04,954 INFO L93 Difference]: Finished difference Result 2872 states and 11448 transitions. [2021-03-11 14:46:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:04,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:04,969 INFO L225 Difference]: With dead ends: 2872 [2021-03-11 14:46:04,969 INFO L226 Difference]: Without dead ends: 2857 [2021-03-11 14:46:04,969 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1121.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2021-03-11 14:46:05,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1570. [2021-03-11 14:46:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.488209050350542) internal successors, (7042), 1569 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:05,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7042 transitions. [2021-03-11 14:46:05,020 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7042 transitions. Word has length 28 [2021-03-11 14:46:05,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:05,020 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7042 transitions. [2021-03-11 14:46:05,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:05,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7042 transitions. [2021-03-11 14:46:05,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:05,023 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:05,023 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:05,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable878 [2021-03-11 14:46:05,023 INFO L428 AbstractCegarLoop]: === Iteration 880 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:05,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:05,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1636305292, now seen corresponding path program 872 times [2021-03-11 14:46:05,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:05,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055198003] [2021-03-11 14:46:05,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:05,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:05,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:05,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:05,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:05,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:05,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:05,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:05,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:05,167 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:05,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:05,245 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:05,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:05,402 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:05,407 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:05,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:05,520 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:46:05,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:46:05,656 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:05,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:05,812 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:05,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:05,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055198003] [2021-03-11 14:46:05,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:05,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:05,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739622267] [2021-03-11 14:46:05,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:05,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:05,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:05,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:05,951 INFO L87 Difference]: Start difference. First operand 1570 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:06,685 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:06,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:06,739 INFO L93 Difference]: Finished difference Result 2873 states and 11445 transitions. [2021-03-11 14:46:06,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:06,744 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:06,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:06,752 INFO L225 Difference]: With dead ends: 2873 [2021-03-11 14:46:06,752 INFO L226 Difference]: Without dead ends: 2852 [2021-03-11 14:46:06,752 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1093.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-03-11 14:46:06,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1565. [2021-03-11 14:46:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.494884910485934) internal successors, (7030), 1564 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7030 transitions. [2021-03-11 14:46:06,804 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7030 transitions. Word has length 28 [2021-03-11 14:46:06,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:06,804 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7030 transitions. [2021-03-11 14:46:06,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7030 transitions. [2021-03-11 14:46:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:06,808 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:06,808 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:06,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable879 [2021-03-11 14:46:06,808 INFO L428 AbstractCegarLoop]: === Iteration 881 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:06,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1202891370, now seen corresponding path program 873 times [2021-03-11 14:46:06,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:06,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747411297] [2021-03-11 14:46:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:06,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:06,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:06,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:06,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:06,867 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:06,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:06,909 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:06,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:06,968 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:06,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:07,045 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:07,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:07,190 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:07,193 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:07,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:07,299 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:07,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:07,431 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:07,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:07,596 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:07,601 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:07,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:07,747 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:07,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747411297] [2021-03-11 14:46:07,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:07,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:07,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814209942] [2021-03-11 14:46:07,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:07,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:07,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:07,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:07,750 INFO L87 Difference]: Start difference. First operand 1565 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:08,467 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:08,510 INFO L93 Difference]: Finished difference Result 2867 states and 11433 transitions. [2021-03-11 14:46:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:08,516 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:08,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:08,524 INFO L225 Difference]: With dead ends: 2867 [2021-03-11 14:46:08,524 INFO L226 Difference]: Without dead ends: 2852 [2021-03-11 14:46:08,525 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1056.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-03-11 14:46:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1568. [2021-03-11 14:46:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.489470325462667) internal successors, (7035), 1567 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7035 transitions. [2021-03-11 14:46:08,576 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7035 transitions. Word has length 28 [2021-03-11 14:46:08,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:08,576 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7035 transitions. [2021-03-11 14:46:08,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7035 transitions. [2021-03-11 14:46:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:08,579 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:08,579 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:08,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable880 [2021-03-11 14:46:08,580 INFO L428 AbstractCegarLoop]: === Iteration 882 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:08,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:08,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1744945170, now seen corresponding path program 874 times [2021-03-11 14:46:08,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:08,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457858490] [2021-03-11 14:46:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:08,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:08,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:08,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:08,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:08,621 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:08,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:08,666 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:08,726 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:08,801 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:08,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:08,945 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:08,949 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:08,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:09,058 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:09,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:09,190 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:09,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:09,347 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:09,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:09,494 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:09,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457858490] [2021-03-11 14:46:09,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:09,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:09,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4240622] [2021-03-11 14:46:09,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:09,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:09,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:09,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:09,497 INFO L87 Difference]: Start difference. First operand 1568 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:10,345 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:10,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:10,416 INFO L93 Difference]: Finished difference Result 2865 states and 11426 transitions. [2021-03-11 14:46:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:10,431 INFO L225 Difference]: With dead ends: 2865 [2021-03-11 14:46:10,431 INFO L226 Difference]: Without dead ends: 2849 [2021-03-11 14:46:10,431 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1130.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2021-03-11 14:46:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 1565. [2021-03-11 14:46:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 4.492966751918159) internal successors, (7027), 1564 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 7027 transitions. [2021-03-11 14:46:10,488 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 7027 transitions. Word has length 28 [2021-03-11 14:46:10,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:10,488 INFO L480 AbstractCegarLoop]: Abstraction has 1565 states and 7027 transitions. [2021-03-11 14:46:10,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:10,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 7027 transitions. [2021-03-11 14:46:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:10,491 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:10,491 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:10,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable881 [2021-03-11 14:46:10,491 INFO L428 AbstractCegarLoop]: === Iteration 883 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:10,491 INFO L82 PathProgramCache]: Analyzing trace with hash -447685768, now seen corresponding path program 875 times [2021-03-11 14:46:10,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:10,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788795783] [2021-03-11 14:46:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:10,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:10,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:10,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:10,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:10,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:10,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:10,588 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:10,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:10,654 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:10,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:10,744 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:10,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:10,923 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:10,928 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:10,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:11,063 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:11,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:11,313 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:11,318 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:11,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:11,507 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:11,512 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:11,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:11,682 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:11,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788795783] [2021-03-11 14:46:11,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:11,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:11,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681895375] [2021-03-11 14:46:11,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:11,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:11,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:11,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:11,685 INFO L87 Difference]: Start difference. First operand 1565 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:12,493 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:12,554 INFO L93 Difference]: Finished difference Result 2869 states and 11434 transitions. [2021-03-11 14:46:12,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:12,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:12,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:12,568 INFO L225 Difference]: With dead ends: 2869 [2021-03-11 14:46:12,568 INFO L226 Difference]: Without dead ends: 2853 [2021-03-11 14:46:12,568 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1405.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2021-03-11 14:46:12,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 1568. [2021-03-11 14:46:12,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.487555839183153) internal successors, (7032), 1567 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7032 transitions. [2021-03-11 14:46:12,627 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7032 transitions. Word has length 28 [2021-03-11 14:46:12,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:12,627 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7032 transitions. [2021-03-11 14:46:12,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:12,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7032 transitions. [2021-03-11 14:46:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:12,631 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:12,631 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:12,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable882 [2021-03-11 14:46:12,631 INFO L428 AbstractCegarLoop]: === Iteration 884 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:12,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:12,631 INFO L82 PathProgramCache]: Analyzing trace with hash 144507316, now seen corresponding path program 876 times [2021-03-11 14:46:12,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:12,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472536490] [2021-03-11 14:46:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:12,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:12,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:12,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:12,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:12,687 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:12,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:12,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:12,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:12,826 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:12,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:12,918 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:12,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:13,080 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:13,084 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:13,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:13,212 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:13,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:13,440 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:13,446 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:13,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:13,604 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:13,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:13,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:13,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472536490] [2021-03-11 14:46:13,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:13,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:13,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522288467] [2021-03-11 14:46:13,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:13,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:13,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:13,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:13,739 INFO L87 Difference]: Start difference. First operand 1568 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:14,414 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:14,484 INFO L93 Difference]: Finished difference Result 2866 states and 11425 transitions. [2021-03-11 14:46:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:14,490 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:14,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:14,499 INFO L225 Difference]: With dead ends: 2866 [2021-03-11 14:46:14,499 INFO L226 Difference]: Without dead ends: 2847 [2021-03-11 14:46:14,499 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1275.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:14,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2021-03-11 14:46:14,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 1562. [2021-03-11 14:46:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 4.496476617552851) internal successors, (7019), 1561 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:14,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 7019 transitions. [2021-03-11 14:46:14,551 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 7019 transitions. Word has length 28 [2021-03-11 14:46:14,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:14,551 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 7019 transitions. [2021-03-11 14:46:14,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:14,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 7019 transitions. [2021-03-11 14:46:14,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:14,582 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:14,582 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:14,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable883 [2021-03-11 14:46:14,583 INFO L428 AbstractCegarLoop]: === Iteration 885 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:14,583 INFO L82 PathProgramCache]: Analyzing trace with hash -444470608, now seen corresponding path program 877 times [2021-03-11 14:46:14,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:14,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078127417] [2021-03-11 14:46:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:14,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:14,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:14,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:14,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:14,626 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:14,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:14,675 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:14,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:14,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:14,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:14,818 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:14,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:14,964 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:14,968 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:46:14,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:46:15,140 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:46:15,144 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:15,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:15,367 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:46:15,372 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:15,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:15,511 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:15,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:15,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078127417] [2021-03-11 14:46:15,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:15,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:15,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995361213] [2021-03-11 14:46:15,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:15,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:15,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:15,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:15,637 INFO L87 Difference]: Start difference. First operand 1562 states and 7019 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:16,360 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:16,410 INFO L93 Difference]: Finished difference Result 2884 states and 11468 transitions. [2021-03-11 14:46:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:16,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:16,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:16,425 INFO L225 Difference]: With dead ends: 2884 [2021-03-11 14:46:16,425 INFO L226 Difference]: Without dead ends: 2869 [2021-03-11 14:46:16,425 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1224.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:16,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2021-03-11 14:46:16,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 1572. [2021-03-11 14:46:16,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.483768300445576) internal successors, (7044), 1571 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7044 transitions. [2021-03-11 14:46:16,478 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7044 transitions. Word has length 28 [2021-03-11 14:46:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:16,478 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7044 transitions. [2021-03-11 14:46:16,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:16,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7044 transitions. [2021-03-11 14:46:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:16,481 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:16,481 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:16,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable884 [2021-03-11 14:46:16,481 INFO L428 AbstractCegarLoop]: === Iteration 886 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:16,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:16,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1044934388, now seen corresponding path program 878 times [2021-03-11 14:46:16,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:16,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634067851] [2021-03-11 14:46:16,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:16,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:16,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:16,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:16,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:16,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:16,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:16,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:16,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:16,624 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:16,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:16,699 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:16,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:16,851 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:16,855 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:46:16,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:46:17,045 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:46:17,050 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:17,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:17,292 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:46:17,296 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:46:17,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:46:17,455 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:17,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:17,599 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:17,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634067851] [2021-03-11 14:46:17,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:17,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:17,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619910898] [2021-03-11 14:46:17,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:17,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:17,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:17,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:17,602 INFO L87 Difference]: Start difference. First operand 1572 states and 7044 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:18,060 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:46:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:18,113 INFO L93 Difference]: Finished difference Result 2889 states and 11472 transitions. [2021-03-11 14:46:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:18,119 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:18,127 INFO L225 Difference]: With dead ends: 2889 [2021-03-11 14:46:18,127 INFO L226 Difference]: Without dead ends: 2863 [2021-03-11 14:46:18,127 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1190.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:18,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2021-03-11 14:46:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1566. [2021-03-11 14:46:18,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.491373801916933) internal successors, (7029), 1565 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7029 transitions. [2021-03-11 14:46:18,179 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7029 transitions. Word has length 28 [2021-03-11 14:46:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:18,179 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7029 transitions. [2021-03-11 14:46:18,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7029 transitions. [2021-03-11 14:46:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:18,182 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:18,182 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:18,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable885 [2021-03-11 14:46:18,182 INFO L428 AbstractCegarLoop]: === Iteration 887 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:18,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:18,183 INFO L82 PathProgramCache]: Analyzing trace with hash 723142708, now seen corresponding path program 879 times [2021-03-11 14:46:18,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:18,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482782644] [2021-03-11 14:46:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:18,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:18,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:18,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:18,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:18,225 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:18,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:18,266 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:18,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:18,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:18,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:18,409 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:18,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:18,553 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:18,557 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:46:18,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:46:18,722 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:46:18,726 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:18,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:18,865 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:18,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:19,024 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:19,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:19,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482782644] [2021-03-11 14:46:19,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:19,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:19,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098259079] [2021-03-11 14:46:19,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:19,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:19,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:19,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:19,163 INFO L87 Difference]: Start difference. First operand 1566 states and 7029 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:19,766 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:19,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:19,814 INFO L93 Difference]: Finished difference Result 2874 states and 11443 transitions. [2021-03-11 14:46:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:19,829 INFO L225 Difference]: With dead ends: 2874 [2021-03-11 14:46:19,829 INFO L226 Difference]: Without dead ends: 2859 [2021-03-11 14:46:19,829 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1124.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:19,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2021-03-11 14:46:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 1569. [2021-03-11 14:46:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.485969387755102) internal successors, (7034), 1568 states have internal predecessors, (7034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:19,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7034 transitions. [2021-03-11 14:46:19,881 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7034 transitions. Word has length 28 [2021-03-11 14:46:19,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:19,881 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7034 transitions. [2021-03-11 14:46:19,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:19,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7034 transitions. [2021-03-11 14:46:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:19,885 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:19,885 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:19,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable886 [2021-03-11 14:46:19,885 INFO L428 AbstractCegarLoop]: === Iteration 888 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:19,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:19,885 INFO L82 PathProgramCache]: Analyzing trace with hash -623988048, now seen corresponding path program 880 times [2021-03-11 14:46:19,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:19,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298396517] [2021-03-11 14:46:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:19,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:19,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:19,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:19,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:19,928 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:19,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:19,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:19,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:20,032 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:20,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:20,112 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:20,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:20,274 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:20,278 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:46:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:46:20,479 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:46:20,484 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:20,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:20,640 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-11 14:46:20,644 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:20,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:20,803 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:20,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:20,966 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:20,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298396517] [2021-03-11 14:46:20,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:20,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:20,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588707440] [2021-03-11 14:46:20,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:20,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:20,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:20,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:20,969 INFO L87 Difference]: Start difference. First operand 1569 states and 7034 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:21,719 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:21,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:21,784 INFO L93 Difference]: Finished difference Result 2872 states and 11436 transitions. [2021-03-11 14:46:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:21,790 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:21,799 INFO L225 Difference]: With dead ends: 2872 [2021-03-11 14:46:21,799 INFO L226 Difference]: Without dead ends: 2856 [2021-03-11 14:46:21,799 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1256.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-03-11 14:46:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 1566. [2021-03-11 14:46:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.489456869009585) internal successors, (7026), 1565 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7026 transitions. [2021-03-11 14:46:21,852 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7026 transitions. Word has length 28 [2021-03-11 14:46:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:21,852 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7026 transitions. [2021-03-11 14:46:21,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:21,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7026 transitions. [2021-03-11 14:46:21,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:21,855 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:21,855 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:21,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable887 [2021-03-11 14:46:21,855 INFO L428 AbstractCegarLoop]: === Iteration 889 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:21,856 INFO L82 PathProgramCache]: Analyzing trace with hash -2061413384, now seen corresponding path program 881 times [2021-03-11 14:46:21,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:21,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104273492] [2021-03-11 14:46:21,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:21,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:21,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:21,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:21,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:21,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:21,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:21,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:21,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:22,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:22,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:22,087 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:22,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:22,238 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:22,242 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:46:22,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:46:22,416 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:46:22,420 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:22,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:22,606 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:46:22,611 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:46:22,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:46:22,774 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:22,778 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:22,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:22,934 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:22,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104273492] [2021-03-11 14:46:22,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:22,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:22,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509941530] [2021-03-11 14:46:22,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:22,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:22,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:22,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:22,937 INFO L87 Difference]: Start difference. First operand 1566 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:23,545 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:46:23,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:23,590 INFO L93 Difference]: Finished difference Result 2885 states and 11460 transitions. [2021-03-11 14:46:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:23,595 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:23,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:23,602 INFO L225 Difference]: With dead ends: 2885 [2021-03-11 14:46:23,602 INFO L226 Difference]: Without dead ends: 2865 [2021-03-11 14:46:23,602 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1151.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2021-03-11 14:46:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 1570. [2021-03-11 14:46:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4818355640535374) internal successors, (7032), 1569 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7032 transitions. [2021-03-11 14:46:23,656 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7032 transitions. Word has length 28 [2021-03-11 14:46:23,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:23,656 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7032 transitions. [2021-03-11 14:46:23,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7032 transitions. [2021-03-11 14:46:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:23,658 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:23,658 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:23,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable888 [2021-03-11 14:46:23,658 INFO L428 AbstractCegarLoop]: === Iteration 890 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:23,658 INFO L82 PathProgramCache]: Analyzing trace with hash 470103540, now seen corresponding path program 882 times [2021-03-11 14:46:23,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:23,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422273448] [2021-03-11 14:46:23,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:23,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:23,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:23,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:23,699 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:23,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:23,744 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:23,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:23,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:23,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:23,904 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:23,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:24,082 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:24,087 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:46:24,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:46:24,296 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:46:24,300 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:24,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:24,516 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:46:24,522 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:24,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:24,700 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:24,705 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:24,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:24,882 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:24,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422273448] [2021-03-11 14:46:24,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:24,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:24,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970215222] [2021-03-11 14:46:24,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:24,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:24,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:24,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:24,886 INFO L87 Difference]: Start difference. First operand 1570 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:25,584 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:25,660 INFO L93 Difference]: Finished difference Result 2878 states and 11443 transitions. [2021-03-11 14:46:25,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:25,665 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:25,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:25,672 INFO L225 Difference]: With dead ends: 2878 [2021-03-11 14:46:25,672 INFO L226 Difference]: Without dead ends: 2857 [2021-03-11 14:46:25,672 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1429.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2021-03-11 14:46:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1562. [2021-03-11 14:46:25,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 4.493914157591288) internal successors, (7015), 1561 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 7015 transitions. [2021-03-11 14:46:25,721 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 7015 transitions. Word has length 28 [2021-03-11 14:46:25,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:25,721 INFO L480 AbstractCegarLoop]: Abstraction has 1562 states and 7015 transitions. [2021-03-11 14:46:25,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:25,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 7015 transitions. [2021-03-11 14:46:25,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:25,723 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:25,724 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:25,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable889 [2021-03-11 14:46:25,724 INFO L428 AbstractCegarLoop]: === Iteration 891 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:25,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:25,724 INFO L82 PathProgramCache]: Analyzing trace with hash -2058198224, now seen corresponding path program 883 times [2021-03-11 14:46:25,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:25,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513197472] [2021-03-11 14:46:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:25,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:25,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:25,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:25,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:25,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:25,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:25,809 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:25,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:25,868 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:25,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:25,945 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:26,077 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:26,081 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:46:26,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:46:26,238 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:46:26,243 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:26,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:26,461 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:26,466 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:26,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:26,626 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:26,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:26,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513197472] [2021-03-11 14:46:26,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:26,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:26,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154068809] [2021-03-11 14:46:26,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:26,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:26,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:26,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:26,767 INFO L87 Difference]: Start difference. First operand 1562 states and 7015 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:27,383 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:27,433 INFO L93 Difference]: Finished difference Result 2889 states and 11476 transitions. [2021-03-11 14:46:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:27,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:27,447 INFO L225 Difference]: With dead ends: 2889 [2021-03-11 14:46:27,447 INFO L226 Difference]: Without dead ends: 2873 [2021-03-11 14:46:27,447 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1216.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2021-03-11 14:46:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 1573. [2021-03-11 14:46:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.479643765903308) internal successors, (7042), 1572 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7042 transitions. [2021-03-11 14:46:27,500 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7042 transitions. Word has length 28 [2021-03-11 14:46:27,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:27,500 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7042 transitions. [2021-03-11 14:46:27,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:27,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7042 transitions. [2021-03-11 14:46:27,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:27,503 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:27,503 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:27,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable890 [2021-03-11 14:46:27,504 INFO L428 AbstractCegarLoop]: === Iteration 892 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:27,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:27,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1313495726, now seen corresponding path program 884 times [2021-03-11 14:46:27,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:27,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68683846] [2021-03-11 14:46:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:27,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:27,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:27,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:27,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:27,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:27,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:27,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:27,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:27,656 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:27,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:27,737 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:27,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:27,892 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:27,896 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:46:27,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:46:28,074 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:46:28,078 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:28,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:28,305 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:28,310 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:46:28,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:46:28,476 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:28,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:28,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68683846] [2021-03-11 14:46:28,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:28,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:28,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195750055] [2021-03-11 14:46:28,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:28,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:28,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:28,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:28,622 INFO L87 Difference]: Start difference. First operand 1573 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:29,111 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:46:29,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:29,166 INFO L93 Difference]: Finished difference Result 2893 states and 11477 transitions. [2021-03-11 14:46:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:29,172 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:29,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:29,180 INFO L225 Difference]: With dead ends: 2893 [2021-03-11 14:46:29,180 INFO L226 Difference]: Without dead ends: 2866 [2021-03-11 14:46:29,181 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1186.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2021-03-11 14:46:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 1566. [2021-03-11 14:46:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.4888178913738015) internal successors, (7025), 1565 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7025 transitions. [2021-03-11 14:46:29,232 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7025 transitions. Word has length 28 [2021-03-11 14:46:29,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:29,232 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7025 transitions. [2021-03-11 14:46:29,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7025 transitions. [2021-03-11 14:46:29,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:29,235 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:29,235 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:29,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable891 [2021-03-11 14:46:29,235 INFO L428 AbstractCegarLoop]: === Iteration 893 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:29,235 INFO L82 PathProgramCache]: Analyzing trace with hash -890584908, now seen corresponding path program 885 times [2021-03-11 14:46:29,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:29,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923068115] [2021-03-11 14:46:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:29,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:29,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:29,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:29,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:29,277 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:29,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:29,319 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:29,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:29,377 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:29,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:29,453 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:29,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:29,605 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:29,609 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:46:29,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:46:29,788 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:46:29,792 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:29,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:30,000 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:30,004 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:30,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:30,172 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:30,176 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:30,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:30,323 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:30,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923068115] [2021-03-11 14:46:30,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:30,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:30,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669320906] [2021-03-11 14:46:30,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:30,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:30,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:30,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:30,326 INFO L87 Difference]: Start difference. First operand 1566 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:31,097 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:31,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:31,152 INFO L93 Difference]: Finished difference Result 2878 states and 11448 transitions. [2021-03-11 14:46:31,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:31,159 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:31,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:31,168 INFO L225 Difference]: With dead ends: 2878 [2021-03-11 14:46:31,168 INFO L226 Difference]: Without dead ends: 2862 [2021-03-11 14:46:31,168 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1268.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:31,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2021-03-11 14:46:31,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 1569. [2021-03-11 14:46:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.483418367346939) internal successors, (7030), 1568 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7030 transitions. [2021-03-11 14:46:31,221 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7030 transitions. Word has length 28 [2021-03-11 14:46:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:31,221 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7030 transitions. [2021-03-11 14:46:31,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:31,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7030 transitions. [2021-03-11 14:46:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:31,224 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:31,224 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:31,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable892 [2021-03-11 14:46:31,224 INFO L428 AbstractCegarLoop]: === Iteration 894 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:31,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:31,225 INFO L82 PathProgramCache]: Analyzing trace with hash -298391824, now seen corresponding path program 886 times [2021-03-11 14:46:31,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:31,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902343248] [2021-03-11 14:46:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:31,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:31,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:31,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:31,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:31,269 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:31,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:31,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:31,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:31,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:31,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:31,461 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:31,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:31,616 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:31,621 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:46:31,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:46:31,813 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:46:31,817 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:31,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:32,036 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:32,041 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:32,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:32,211 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:32,216 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:32,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:32,361 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:32,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902343248] [2021-03-11 14:46:32,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:32,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:32,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326875865] [2021-03-11 14:46:32,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:32,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:32,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:32,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:32,364 INFO L87 Difference]: Start difference. First operand 1569 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:33,085 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:33,157 INFO L93 Difference]: Finished difference Result 2875 states and 11439 transitions. [2021-03-11 14:46:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:33,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:33,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:33,172 INFO L225 Difference]: With dead ends: 2875 [2021-03-11 14:46:33,172 INFO L226 Difference]: Without dead ends: 2859 [2021-03-11 14:46:33,172 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1318.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:33,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2021-03-11 14:46:33,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 1566. [2021-03-11 14:46:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.486900958466454) internal successors, (7022), 1565 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7022 transitions. [2021-03-11 14:46:33,223 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7022 transitions. Word has length 28 [2021-03-11 14:46:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:33,224 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7022 transitions. [2021-03-11 14:46:33,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7022 transitions. [2021-03-11 14:46:33,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:33,227 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:33,227 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:33,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable893 [2021-03-11 14:46:33,227 INFO L428 AbstractCegarLoop]: === Iteration 895 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:33,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:33,227 INFO L82 PathProgramCache]: Analyzing trace with hash -135379306, now seen corresponding path program 887 times [2021-03-11 14:46:33,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:33,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302225655] [2021-03-11 14:46:33,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:33,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:33,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:33,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:33,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:33,293 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:33,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:33,342 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:33,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:33,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:33,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:33,485 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:33,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:33,635 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:33,638 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:46:33,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:46:33,796 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:46:33,800 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:33,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:33,969 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:46:33,973 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:46:33,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:46:34,124 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:34,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:34,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302225655] [2021-03-11 14:46:34,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:34,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:34,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392353231] [2021-03-11 14:46:34,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:34,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:34,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:34,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:34,268 INFO L87 Difference]: Start difference. First operand 1566 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:34,854 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:46:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:34,902 INFO L93 Difference]: Finished difference Result 2887 states and 11461 transitions. [2021-03-11 14:46:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:34,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:34,916 INFO L225 Difference]: With dead ends: 2887 [2021-03-11 14:46:34,916 INFO L226 Difference]: Without dead ends: 2867 [2021-03-11 14:46:34,917 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1087.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:34,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2021-03-11 14:46:34,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 1570. [2021-03-11 14:46:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.479286169534736) internal successors, (7028), 1569 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7028 transitions. [2021-03-11 14:46:34,968 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7028 transitions. Word has length 28 [2021-03-11 14:46:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:34,968 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7028 transitions. [2021-03-11 14:46:34,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7028 transitions. [2021-03-11 14:46:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:34,971 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:34,971 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:34,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable894 [2021-03-11 14:46:34,972 INFO L428 AbstractCegarLoop]: === Iteration 896 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:34,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:34,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1898829678, now seen corresponding path program 888 times [2021-03-11 14:46:34,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:34,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036745743] [2021-03-11 14:46:34,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:34,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:34,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:34,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:34,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:35,022 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:35,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:35,066 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:35,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:35,120 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:35,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:35,198 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:46:35,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:46:35,341 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:46:35,345 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:46:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:46:35,529 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:46:35,533 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:46:35,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:46:35,721 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:46:35,725 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:35,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:35,881 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:35,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:36,029 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:36,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036745743] [2021-03-11 14:46:36,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:36,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:36,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989003455] [2021-03-11 14:46:36,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:36,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:36,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:36,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:36,032 INFO L87 Difference]: Start difference. First operand 1570 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:36,618 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:36,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:36,714 INFO L93 Difference]: Finished difference Result 2880 states and 11444 transitions. [2021-03-11 14:46:36,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:36,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:36,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:36,729 INFO L225 Difference]: With dead ends: 2880 [2021-03-11 14:46:36,729 INFO L226 Difference]: Without dead ends: 2855 [2021-03-11 14:46:36,729 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1226.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:36,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2021-03-11 14:46:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 1558. [2021-03-11 14:46:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 4.498394348105331) internal successors, (7004), 1557 states have internal predecessors, (7004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 7004 transitions. [2021-03-11 14:46:36,781 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 7004 transitions. Word has length 28 [2021-03-11 14:46:36,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:36,781 INFO L480 AbstractCegarLoop]: Abstraction has 1558 states and 7004 transitions. [2021-03-11 14:46:36,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:36,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 7004 transitions. [2021-03-11 14:46:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:36,784 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:36,784 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:36,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable895 [2021-03-11 14:46:36,785 INFO L428 AbstractCegarLoop]: === Iteration 897 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:36,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:36,785 INFO L82 PathProgramCache]: Analyzing trace with hash 236053416, now seen corresponding path program 889 times [2021-03-11 14:46:36,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:36,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281779989] [2021-03-11 14:46:36,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:36,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:36,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:36,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:36,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:36,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:36,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:36,887 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:36,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:36,947 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:36,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:37,024 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:37,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:37,118 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:37,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:37,234 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:46:37,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:46:37,368 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:37,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:37,527 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:37,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:37,673 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:37,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281779989] [2021-03-11 14:46:37,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:37,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:37,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577151626] [2021-03-11 14:46:37,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:37,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:37,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:37,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:37,675 INFO L87 Difference]: Start difference. First operand 1558 states and 7004 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:38,400 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:38,449 INFO L93 Difference]: Finished difference Result 2875 states and 11459 transitions. [2021-03-11 14:46:38,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:38,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:38,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:38,463 INFO L225 Difference]: With dead ends: 2875 [2021-03-11 14:46:38,463 INFO L226 Difference]: Without dead ends: 2860 [2021-03-11 14:46:38,463 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1048.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2021-03-11 14:46:38,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1571. [2021-03-11 14:46:38,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.487898089171974) internal successors, (7046), 1570 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7046 transitions. [2021-03-11 14:46:38,516 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7046 transitions. Word has length 28 [2021-03-11 14:46:38,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:38,516 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7046 transitions. [2021-03-11 14:46:38,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:38,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7046 transitions. [2021-03-11 14:46:38,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:38,519 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:38,519 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:38,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable896 [2021-03-11 14:46:38,519 INFO L428 AbstractCegarLoop]: === Iteration 898 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:38,519 INFO L82 PathProgramCache]: Analyzing trace with hash 980755914, now seen corresponding path program 890 times [2021-03-11 14:46:38,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:38,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789573983] [2021-03-11 14:46:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:38,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:38,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:38,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:38,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:38,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:38,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:38,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:38,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:38,671 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:38,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:38,748 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:38,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:38,839 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:38,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:38,956 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:46:38,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:46:39,103 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:39,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:39,271 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:39,276 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:39,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:39,419 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:39,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789573983] [2021-03-11 14:46:39,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:39,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:39,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205062859] [2021-03-11 14:46:39,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:39,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:39,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:39,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:39,422 INFO L87 Difference]: Start difference. First operand 1571 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:40,209 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:40,274 INFO L93 Difference]: Finished difference Result 2876 states and 11456 transitions. [2021-03-11 14:46:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:40,281 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:40,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:40,290 INFO L225 Difference]: With dead ends: 2876 [2021-03-11 14:46:40,290 INFO L226 Difference]: Without dead ends: 2855 [2021-03-11 14:46:40,290 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1089.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:40,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2021-03-11 14:46:40,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 1566. [2021-03-11 14:46:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.493290734824281) internal successors, (7032), 1565 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7032 transitions. [2021-03-11 14:46:40,342 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7032 transitions. Word has length 28 [2021-03-11 14:46:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:40,342 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7032 transitions. [2021-03-11 14:46:40,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7032 transitions. [2021-03-11 14:46:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:40,345 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:40,345 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:40,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable897 [2021-03-11 14:46:40,345 INFO L428 AbstractCegarLoop]: === Iteration 899 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:40,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:40,346 INFO L82 PathProgramCache]: Analyzing trace with hash -837031964, now seen corresponding path program 891 times [2021-03-11 14:46:40,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:40,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865825530] [2021-03-11 14:46:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:40,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:40,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:40,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:40,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:40,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:40,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:40,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:40,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:40,510 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:40,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:40,605 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:40,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:40,720 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:40,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:40,863 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:40,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:41,134 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:41,140 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:41,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:41,336 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:41,341 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:41,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:41,517 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:41,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865825530] [2021-03-11 14:46:41,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:41,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:41,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792696450] [2021-03-11 14:46:41,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:41,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:41,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:41,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:41,521 INFO L87 Difference]: Start difference. First operand 1566 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:42,354 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:42,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:42,407 INFO L93 Difference]: Finished difference Result 2877 states and 11458 transitions. [2021-03-11 14:46:42,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:42,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:42,423 INFO L225 Difference]: With dead ends: 2877 [2021-03-11 14:46:42,423 INFO L226 Difference]: Without dead ends: 2862 [2021-03-11 14:46:42,423 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1392.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2021-03-11 14:46:42,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 1571. [2021-03-11 14:46:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.484713375796178) internal successors, (7041), 1570 states have internal predecessors, (7041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7041 transitions. [2021-03-11 14:46:42,477 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7041 transitions. Word has length 28 [2021-03-11 14:46:42,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:42,477 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7041 transitions. [2021-03-11 14:46:42,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7041 transitions. [2021-03-11 14:46:42,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:42,480 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:42,480 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:42,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable898 [2021-03-11 14:46:42,480 INFO L428 AbstractCegarLoop]: === Iteration 900 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:42,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1397075530, now seen corresponding path program 892 times [2021-03-11 14:46:42,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:42,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801518613] [2021-03-11 14:46:42,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:42,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:42,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:42,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:42,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:42,526 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:42,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:42,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:42,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:42,642 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:42,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:42,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:42,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:42,840 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:42,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:42,978 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:42,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:43,227 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:43,232 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:43,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:43,405 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:43,411 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:43,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:43,573 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:43,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801518613] [2021-03-11 14:46:43,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:43,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:43,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880246925] [2021-03-11 14:46:43,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:43,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:43,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:43,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:43,576 INFO L87 Difference]: Start difference. First operand 1571 states and 7041 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:44,488 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:46:44,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:44,554 INFO L93 Difference]: Finished difference Result 2880 states and 11459 transitions. [2021-03-11 14:46:44,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:44,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:44,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:44,569 INFO L225 Difference]: With dead ends: 2880 [2021-03-11 14:46:44,569 INFO L226 Difference]: Without dead ends: 2857 [2021-03-11 14:46:44,569 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1243.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:44,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2021-03-11 14:46:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1566. [2021-03-11 14:46:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.490095846645367) internal successors, (7027), 1565 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7027 transitions. [2021-03-11 14:46:44,622 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7027 transitions. Word has length 28 [2021-03-11 14:46:44,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:44,622 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7027 transitions. [2021-03-11 14:46:44,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:44,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7027 transitions. [2021-03-11 14:46:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:44,625 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:44,625 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:44,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable899 [2021-03-11 14:46:44,625 INFO L428 AbstractCegarLoop]: === Iteration 901 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:44,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:44,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1518611492, now seen corresponding path program 893 times [2021-03-11 14:46:44,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:44,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677575423] [2021-03-11 14:46:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:44,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:44,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:44,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:44,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:44,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:44,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:44,711 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:44,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:44,772 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:44,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:44,850 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:44,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:44,946 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:44,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:45,066 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:45,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:45,216 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:45,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:45,381 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:45,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:45,530 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:45,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677575423] [2021-03-11 14:46:45,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:45,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:45,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003527241] [2021-03-11 14:46:45,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:45,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:45,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:45,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:45,534 INFO L87 Difference]: Start difference. First operand 1566 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:46,462 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:46,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:46,509 INFO L93 Difference]: Finished difference Result 2880 states and 11460 transitions. [2021-03-11 14:46:46,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:46,514 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:46,522 INFO L225 Difference]: With dead ends: 2880 [2021-03-11 14:46:46,522 INFO L226 Difference]: Without dead ends: 2864 [2021-03-11 14:46:46,522 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1084.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:46,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-03-11 14:46:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1572. [2021-03-11 14:46:46,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.479949077021006) internal successors, (7038), 1571 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7038 transitions. [2021-03-11 14:46:46,571 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7038 transitions. Word has length 28 [2021-03-11 14:46:46,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:46,572 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7038 transitions. [2021-03-11 14:46:46,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7038 transitions. [2021-03-11 14:46:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:46,574 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:46,574 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:46,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable900 [2021-03-11 14:46:46,574 INFO L428 AbstractCegarLoop]: === Iteration 902 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:46,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:46,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1286950808, now seen corresponding path program 894 times [2021-03-11 14:46:46,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:46,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226374420] [2021-03-11 14:46:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:46,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:46,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:46,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:46,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:46,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:46,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:46,649 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:46,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:46,711 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:46,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:46,795 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:46,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:46,894 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:46,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:47,021 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:47,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:47,160 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:47,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:47,307 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:47,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:47,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226374420] [2021-03-11 14:46:47,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:47,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:47,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626143319] [2021-03-11 14:46:47,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:47,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:47,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:47,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:47,438 INFO L87 Difference]: Start difference. First operand 1572 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:48,379 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:46:48,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:48,444 INFO L93 Difference]: Finished difference Result 2882 states and 11458 transitions. [2021-03-11 14:46:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:48,450 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:48,458 INFO L225 Difference]: With dead ends: 2882 [2021-03-11 14:46:48,459 INFO L226 Difference]: Without dead ends: 2853 [2021-03-11 14:46:48,459 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1059.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2021-03-11 14:46:48,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 1561. [2021-03-11 14:46:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 4.496794871794871) internal successors, (7015), 1560 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 7015 transitions. [2021-03-11 14:46:48,511 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 7015 transitions. Word has length 28 [2021-03-11 14:46:48,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:48,511 INFO L480 AbstractCegarLoop]: Abstraction has 1561 states and 7015 transitions. [2021-03-11 14:46:48,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:48,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 7015 transitions. [2021-03-11 14:46:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:48,514 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:48,514 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:48,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable901 [2021-03-11 14:46:48,514 INFO L428 AbstractCegarLoop]: === Iteration 903 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:48,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:48,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1746731620, now seen corresponding path program 895 times [2021-03-11 14:46:48,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:48,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706626040] [2021-03-11 14:46:48,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:48,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:48,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:48,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:48,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:48,554 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:48,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:48,599 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:48,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:48,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:48,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:48,734 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:48,839 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:48,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:48,957 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:46:48,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:46:49,103 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:49,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:49,270 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:49,275 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:49,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:49,418 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:49,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706626040] [2021-03-11 14:46:49,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:49,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:49,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452025973] [2021-03-11 14:46:49,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:49,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:49,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:49,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:49,421 INFO L87 Difference]: Start difference. First operand 1561 states and 7015 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:50,377 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:50,429 INFO L93 Difference]: Finished difference Result 2863 states and 11423 transitions. [2021-03-11 14:46:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:50,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:50,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:50,445 INFO L225 Difference]: With dead ends: 2863 [2021-03-11 14:46:50,445 INFO L226 Difference]: Without dead ends: 2848 [2021-03-11 14:46:50,445 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1099.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:50,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-03-11 14:46:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1569. [2021-03-11 14:46:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.486607142857143) internal successors, (7035), 1568 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7035 transitions. [2021-03-11 14:46:50,497 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7035 transitions. Word has length 28 [2021-03-11 14:46:50,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:50,497 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7035 transitions. [2021-03-11 14:46:50,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7035 transitions. [2021-03-11 14:46:50,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:50,500 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:50,500 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:50,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable902 [2021-03-11 14:46:50,500 INFO L428 AbstractCegarLoop]: === Iteration 904 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:50,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:50,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1803533178, now seen corresponding path program 896 times [2021-03-11 14:46:50,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:50,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398950795] [2021-03-11 14:46:50,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:50,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:50,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:50,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:50,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:50,545 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:50,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:50,592 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:50,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:50,657 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:50,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:50,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:50,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:50,838 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:50,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:50,962 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:46:50,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:46:51,121 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:51,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:51,286 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:51,291 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:51,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:51,444 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:51,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398950795] [2021-03-11 14:46:51,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:51,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:51,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37397624] [2021-03-11 14:46:51,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:51,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:51,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:51,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:51,448 INFO L87 Difference]: Start difference. First operand 1569 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:52,442 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:52,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:52,499 INFO L93 Difference]: Finished difference Result 2864 states and 11420 transitions. [2021-03-11 14:46:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:52,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:52,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:52,514 INFO L225 Difference]: With dead ends: 2864 [2021-03-11 14:46:52,514 INFO L226 Difference]: Without dead ends: 2843 [2021-03-11 14:46:52,514 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1135.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2021-03-11 14:46:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 1564. [2021-03-11 14:46:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.493282149712092) internal successors, (7023), 1563 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7023 transitions. [2021-03-11 14:46:52,566 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7023 transitions. Word has length 28 [2021-03-11 14:46:52,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:52,566 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7023 transitions. [2021-03-11 14:46:52,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:52,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7023 transitions. [2021-03-11 14:46:52,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:52,570 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:52,570 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:52,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable903 [2021-03-11 14:46:52,570 INFO L428 AbstractCegarLoop]: === Iteration 905 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1370119256, now seen corresponding path program 897 times [2021-03-11 14:46:52,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:52,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437961825] [2021-03-11 14:46:52,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:52,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:52,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:52,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:52,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:52,614 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:52,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:52,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:52,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:52,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:52,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:52,813 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:52,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:52,923 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:52,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:53,050 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:53,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:53,201 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:53,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:53,379 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:53,384 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:53,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:53,541 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:53,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437961825] [2021-03-11 14:46:53,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:53,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:53,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462583905] [2021-03-11 14:46:53,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:53,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:53,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:53,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:53,544 INFO L87 Difference]: Start difference. First operand 1564 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:54,355 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:46:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:54,402 INFO L93 Difference]: Finished difference Result 2858 states and 11408 transitions. [2021-03-11 14:46:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:54,409 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:54,418 INFO L225 Difference]: With dead ends: 2858 [2021-03-11 14:46:54,418 INFO L226 Difference]: Without dead ends: 2843 [2021-03-11 14:46:54,418 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1179.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2021-03-11 14:46:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 1567. [2021-03-11 14:46:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.48786717752235) internal successors, (7028), 1566 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:54,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7028 transitions. [2021-03-11 14:46:54,468 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7028 transitions. Word has length 28 [2021-03-11 14:46:54,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:54,468 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7028 transitions. [2021-03-11 14:46:54,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:54,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7028 transitions. [2021-03-11 14:46:54,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:54,471 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:54,471 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:54,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable904 [2021-03-11 14:46:54,471 INFO L428 AbstractCegarLoop]: === Iteration 906 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:54,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:54,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1577717284, now seen corresponding path program 898 times [2021-03-11 14:46:54,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:54,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629360884] [2021-03-11 14:46:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:54,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:54,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:54,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:54,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:54,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:54,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:54,553 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:54,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:54,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:54,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:54,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:54,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:54,776 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:54,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:54,880 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:46:54,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:46:55,000 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:55,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:55,171 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:55,176 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:55,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:55,331 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:55,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629360884] [2021-03-11 14:46:55,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:55,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:55,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495638920] [2021-03-11 14:46:55,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:55,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:55,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:55,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:55,334 INFO L87 Difference]: Start difference. First operand 1567 states and 7028 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:56,202 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:56,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:56,264 INFO L93 Difference]: Finished difference Result 2856 states and 11401 transitions. [2021-03-11 14:46:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:56,270 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:56,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:56,278 INFO L225 Difference]: With dead ends: 2856 [2021-03-11 14:46:56,278 INFO L226 Difference]: Without dead ends: 2840 [2021-03-11 14:46:56,279 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1048.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2021-03-11 14:46:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 1564. [2021-03-11 14:46:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.491362763915547) internal successors, (7020), 1563 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7020 transitions. [2021-03-11 14:46:56,329 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7020 transitions. Word has length 28 [2021-03-11 14:46:56,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:56,330 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7020 transitions. [2021-03-11 14:46:56,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7020 transitions. [2021-03-11 14:46:56,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:56,333 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:56,333 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:56,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable905 [2021-03-11 14:46:56,333 INFO L428 AbstractCegarLoop]: === Iteration 907 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:56,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:56,333 INFO L82 PathProgramCache]: Analyzing trace with hash -614913654, now seen corresponding path program 899 times [2021-03-11 14:46:56,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:56,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309925690] [2021-03-11 14:46:56,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:56,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:56,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:56,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:56,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:56,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:56,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:56,442 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:56,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:56,501 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:56,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:56,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:56,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:56,671 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:56,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:56,789 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:56,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:57,010 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:57,014 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:57,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:57,178 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:57,182 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:57,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:57,332 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:57,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309925690] [2021-03-11 14:46:57,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:57,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:57,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806720374] [2021-03-11 14:46:57,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:57,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:57,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:57,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:57,335 INFO L87 Difference]: Start difference. First operand 1564 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:58,037 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:46:58,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:46:58,091 INFO L93 Difference]: Finished difference Result 2860 states and 11409 transitions. [2021-03-11 14:46:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:46:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:46:58,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:46:58,107 INFO L225 Difference]: With dead ends: 2860 [2021-03-11 14:46:58,107 INFO L226 Difference]: Without dead ends: 2844 [2021-03-11 14:46:58,107 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1208.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:46:58,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2021-03-11 14:46:58,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 1567. [2021-03-11 14:46:58,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.485951468710089) internal successors, (7025), 1566 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7025 transitions. [2021-03-11 14:46:58,162 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7025 transitions. Word has length 28 [2021-03-11 14:46:58,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:46:58,162 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7025 transitions. [2021-03-11 14:46:58,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:46:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7025 transitions. [2021-03-11 14:46:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:46:58,166 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:46:58,166 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:46:58,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable906 [2021-03-11 14:46:58,166 INFO L428 AbstractCegarLoop]: === Iteration 908 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:46:58,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:46:58,166 INFO L82 PathProgramCache]: Analyzing trace with hash -22720570, now seen corresponding path program 900 times [2021-03-11 14:46:58,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:46:58,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835521119] [2021-03-11 14:46:58,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:46:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:46:58,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:58,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:46:58,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:46:58,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:46:58,210 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:46:58,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:46:58,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:46:58,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:46:58,317 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:46:58,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:46:58,398 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:46:58,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:46:58,500 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:46:58,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:46:58,622 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:46:58,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:46:58,844 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:46:58,849 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:46:58,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:46:59,006 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:46:59,011 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:46:59,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:46:59,165 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:46:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:46:59,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835521119] [2021-03-11 14:46:59,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:46:59,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:46:59,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878275197] [2021-03-11 14:46:59,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:46:59,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:46:59,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:46:59,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:46:59,168 INFO L87 Difference]: Start difference. First operand 1567 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:00,134 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:00,215 INFO L93 Difference]: Finished difference Result 2857 states and 11400 transitions. [2021-03-11 14:47:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:00,231 INFO L225 Difference]: With dead ends: 2857 [2021-03-11 14:47:00,231 INFO L226 Difference]: Without dead ends: 2838 [2021-03-11 14:47:00,231 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1209.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:00,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2021-03-11 14:47:00,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 1561. [2021-03-11 14:47:00,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 4.494871794871795) internal successors, (7012), 1560 states have internal predecessors, (7012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 7012 transitions. [2021-03-11 14:47:00,287 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 7012 transitions. Word has length 28 [2021-03-11 14:47:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:00,287 INFO L480 AbstractCegarLoop]: Abstraction has 1561 states and 7012 transitions. [2021-03-11 14:47:00,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 7012 transitions. [2021-03-11 14:47:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:00,290 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:00,290 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:00,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable907 [2021-03-11 14:47:00,290 INFO L428 AbstractCegarLoop]: === Iteration 909 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1324838688, now seen corresponding path program 901 times [2021-03-11 14:47:00,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:00,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597425572] [2021-03-11 14:47:00,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:00,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:00,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:00,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:00,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:00,337 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:00,391 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:00,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:00,468 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:00,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:00,563 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:00,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:00,690 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:00,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:00,926 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:00,932 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:00,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:01,226 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:01,232 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:01,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:01,440 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:01,445 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:01,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:01,621 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:01,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597425572] [2021-03-11 14:47:01,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:01,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:01,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968577830] [2021-03-11 14:47:01,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:01,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:01,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:01,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:01,625 INFO L87 Difference]: Start difference. First operand 1561 states and 7012 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:02,460 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:02,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:02,519 INFO L93 Difference]: Finished difference Result 2867 states and 11428 transitions. [2021-03-11 14:47:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:02,527 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:02,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:02,536 INFO L225 Difference]: With dead ends: 2867 [2021-03-11 14:47:02,536 INFO L226 Difference]: Without dead ends: 2852 [2021-03-11 14:47:02,536 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1561.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-03-11 14:47:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1569. [2021-03-11 14:47:02,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.48469387755102) internal successors, (7032), 1568 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7032 transitions. [2021-03-11 14:47:02,595 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7032 transitions. Word has length 28 [2021-03-11 14:47:02,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:02,595 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7032 transitions. [2021-03-11 14:47:02,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:02,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7032 transitions. [2021-03-11 14:47:02,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:02,598 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:02,599 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:02,599 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable908 [2021-03-11 14:47:02,599 INFO L428 AbstractCegarLoop]: === Iteration 910 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:02,599 INFO L82 PathProgramCache]: Analyzing trace with hash -736021114, now seen corresponding path program 902 times [2021-03-11 14:47:02,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:02,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839193889] [2021-03-11 14:47:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:02,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:02,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:02,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:02,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:02,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:02,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:02,702 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:02,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:02,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:02,859 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:02,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:02,962 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:02,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:03,160 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:03,165 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:03,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:03,408 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:03,412 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:03,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:03,582 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:03,587 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:03,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:03,736 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:03,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839193889] [2021-03-11 14:47:03,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:03,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:03,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582663255] [2021-03-11 14:47:03,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:03,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:03,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:03,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:03,739 INFO L87 Difference]: Start difference. First operand 1569 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:04,485 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:04,542 INFO L93 Difference]: Finished difference Result 2870 states and 11429 transitions. [2021-03-11 14:47:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:04,549 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:04,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:04,557 INFO L225 Difference]: With dead ends: 2870 [2021-03-11 14:47:04,558 INFO L226 Difference]: Without dead ends: 2847 [2021-03-11 14:47:04,558 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1362.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:04,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2021-03-11 14:47:04,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 1564. [2021-03-11 14:47:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.491362763915547) internal successors, (7020), 1563 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:04,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7020 transitions. [2021-03-11 14:47:04,610 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7020 transitions. Word has length 28 [2021-03-11 14:47:04,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:04,610 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7020 transitions. [2021-03-11 14:47:04,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7020 transitions. [2021-03-11 14:47:04,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:04,613 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:04,613 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:04,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable909 [2021-03-11 14:47:04,613 INFO L428 AbstractCegarLoop]: === Iteration 911 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:04,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:04,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1813018396, now seen corresponding path program 903 times [2021-03-11 14:47:04,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:04,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82446362] [2021-03-11 14:47:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:04,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:04,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:04,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:04,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:04,656 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:04,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:04,705 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:04,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:04,763 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:04,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:04,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:04,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:04,920 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:04,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:05,087 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:05,091 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:05,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:05,215 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:05,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:05,385 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:05,390 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:05,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:05,547 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:05,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82446362] [2021-03-11 14:47:05,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:05,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:05,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491262002] [2021-03-11 14:47:05,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:05,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:05,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:05,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:05,550 INFO L87 Difference]: Start difference. First operand 1564 states and 7020 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:06,097 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:06,142 INFO L93 Difference]: Finished difference Result 2860 states and 11409 transitions. [2021-03-11 14:47:06,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:06,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:06,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:06,155 INFO L225 Difference]: With dead ends: 2860 [2021-03-11 14:47:06,155 INFO L226 Difference]: Without dead ends: 2845 [2021-03-11 14:47:06,156 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1094.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:06,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2021-03-11 14:47:06,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 1567. [2021-03-11 14:47:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.485951468710089) internal successors, (7025), 1566 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7025 transitions. [2021-03-11 14:47:06,208 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7025 transitions. Word has length 28 [2021-03-11 14:47:06,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:06,208 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7025 transitions. [2021-03-11 14:47:06,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7025 transitions. [2021-03-11 14:47:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:06,211 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:06,211 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:06,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable910 [2021-03-11 14:47:06,211 INFO L428 AbstractCegarLoop]: === Iteration 912 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:06,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:06,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1134818144, now seen corresponding path program 904 times [2021-03-11 14:47:06,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:06,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227533411] [2021-03-11 14:47:06,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:06,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:06,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:06,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:06,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:06,257 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:06,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:06,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:06,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:06,370 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:06,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:06,452 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:06,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:06,550 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:06,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:06,741 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:06,745 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:06,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:06,888 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:06,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:07,030 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:07,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:07,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227533411] [2021-03-11 14:47:07,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:07,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:07,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96425315] [2021-03-11 14:47:07,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:07,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:07,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:07,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:07,170 INFO L87 Difference]: Start difference. First operand 1567 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:07,750 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:07,828 INFO L93 Difference]: Finished difference Result 2858 states and 11402 transitions. [2021-03-11 14:47:07,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:07,834 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:07,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:07,843 INFO L225 Difference]: With dead ends: 2858 [2021-03-11 14:47:07,843 INFO L226 Difference]: Without dead ends: 2842 [2021-03-11 14:47:07,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1141.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2021-03-11 14:47:07,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1564. [2021-03-11 14:47:07,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.4894433781190015) internal successors, (7017), 1563 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:07,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7017 transitions. [2021-03-11 14:47:07,894 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7017 transitions. Word has length 28 [2021-03-11 14:47:07,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:07,894 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7017 transitions. [2021-03-11 14:47:07,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:07,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7017 transitions. [2021-03-11 14:47:07,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:07,897 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:07,897 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:07,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable911 [2021-03-11 14:47:07,897 INFO L428 AbstractCegarLoop]: === Iteration 913 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:07,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:07,897 INFO L82 PathProgramCache]: Analyzing trace with hash 452598410, now seen corresponding path program 905 times [2021-03-11 14:47:07,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:07,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239344019] [2021-03-11 14:47:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:07,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:07,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:07,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:07,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:07,945 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:07,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:07,989 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:07,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:08,053 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:08,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:08,134 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:08,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:08,234 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:08,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:08,434 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:08,439 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:08,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:08,646 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:47:08,651 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:08,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:08,817 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:08,822 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:08,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:08,976 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:08,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239344019] [2021-03-11 14:47:08,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:08,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:08,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019358698] [2021-03-11 14:47:08,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:08,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:08,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:08,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:08,980 INFO L87 Difference]: Start difference. First operand 1564 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:09,590 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:09,644 INFO L93 Difference]: Finished difference Result 2866 states and 11418 transitions. [2021-03-11 14:47:09,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:09,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:09,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:09,659 INFO L225 Difference]: With dead ends: 2866 [2021-03-11 14:47:09,659 INFO L226 Difference]: Without dead ends: 2848 [2021-03-11 14:47:09,659 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1290.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-03-11 14:47:09,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1567. [2021-03-11 14:47:09,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.484035759897829) internal successors, (7022), 1566 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7022 transitions. [2021-03-11 14:47:09,712 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7022 transitions. Word has length 28 [2021-03-11 14:47:09,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:09,712 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7022 transitions. [2021-03-11 14:47:09,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:09,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7022 transitions. [2021-03-11 14:47:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:09,715 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:09,715 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:09,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable912 [2021-03-11 14:47:09,715 INFO L428 AbstractCegarLoop]: === Iteration 914 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:09,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:09,715 INFO L82 PathProgramCache]: Analyzing trace with hash 628471878, now seen corresponding path program 906 times [2021-03-11 14:47:09,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:09,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709832182] [2021-03-11 14:47:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:09,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:09,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:09,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:09,763 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:09,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:09,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:09,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:09,875 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:09,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:09,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:09,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:10,102 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:10,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:10,305 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:10,309 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:10,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:10,536 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:47:10,541 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:10,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:10,729 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:10,734 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:10,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:10,919 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:10,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709832182] [2021-03-11 14:47:10,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:10,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:10,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383413848] [2021-03-11 14:47:10,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:10,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:10,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:10,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:10,922 INFO L87 Difference]: Start difference. First operand 1567 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:11,688 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:11,779 INFO L93 Difference]: Finished difference Result 2861 states and 11405 transitions. [2021-03-11 14:47:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:11,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:11,796 INFO L225 Difference]: With dead ends: 2861 [2021-03-11 14:47:11,796 INFO L226 Difference]: Without dead ends: 2842 [2021-03-11 14:47:11,797 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1432.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2021-03-11 14:47:11,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1561. [2021-03-11 14:47:11,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 4.4929487179487175) internal successors, (7009), 1560 states have internal predecessors, (7009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 7009 transitions. [2021-03-11 14:47:11,854 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 7009 transitions. Word has length 28 [2021-03-11 14:47:11,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:11,854 INFO L480 AbstractCegarLoop]: Abstraction has 1561 states and 7009 transitions. [2021-03-11 14:47:11,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 7009 transitions. [2021-03-11 14:47:11,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:11,857 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:11,857 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:11,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable913 [2021-03-11 14:47:11,857 INFO L428 AbstractCegarLoop]: === Iteration 915 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:11,857 INFO L82 PathProgramCache]: Analyzing trace with hash -288888928, now seen corresponding path program 907 times [2021-03-11 14:47:11,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:11,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753390209] [2021-03-11 14:47:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:11,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:11,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:11,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:11,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:11,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:11,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:11,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:11,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:12,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:12,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:12,135 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:12,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:12,252 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:12,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:12,488 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:12,494 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:12,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:12,675 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-11 14:47:12,681 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:12,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:12,903 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:12,910 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:12,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:13,103 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:13,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753390209] [2021-03-11 14:47:13,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:13,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:13,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458633330] [2021-03-11 14:47:13,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:13,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:13,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:13,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:13,106 INFO L87 Difference]: Start difference. First operand 1561 states and 7009 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:13,731 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:13,790 INFO L93 Difference]: Finished difference Result 2872 states and 11437 transitions. [2021-03-11 14:47:13,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:13,797 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:13,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:13,807 INFO L225 Difference]: With dead ends: 2872 [2021-03-11 14:47:13,807 INFO L226 Difference]: Without dead ends: 2856 [2021-03-11 14:47:13,807 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1439.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:13,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2021-03-11 14:47:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 1570. [2021-03-11 14:47:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.481198215423837) internal successors, (7031), 1569 states have internal predecessors, (7031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:13,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7031 transitions. [2021-03-11 14:47:13,860 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7031 transitions. Word has length 28 [2021-03-11 14:47:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:13,861 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7031 transitions. [2021-03-11 14:47:13,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:13,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7031 transitions. [2021-03-11 14:47:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:13,864 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:13,864 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:13,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable914 [2021-03-11 14:47:13,864 INFO L428 AbstractCegarLoop]: === Iteration 916 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:13,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1200516068, now seen corresponding path program 908 times [2021-03-11 14:47:13,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:13,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171712909] [2021-03-11 14:47:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:13,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:13,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:13,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:13,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:13,911 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:13,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:13,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:13,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:14,026 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:14,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:14,111 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:14,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:14,214 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:14,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:14,413 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:14,418 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:14,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:14,574 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:14,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:14,754 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:14,759 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:14,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:14,910 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:14,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171712909] [2021-03-11 14:47:14,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:14,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:14,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270875363] [2021-03-11 14:47:14,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:14,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:14,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:14,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:14,913 INFO L87 Difference]: Start difference. First operand 1570 states and 7031 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:15,509 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:15,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:15,571 INFO L93 Difference]: Finished difference Result 2874 states and 11435 transitions. [2021-03-11 14:47:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:15,577 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:15,585 INFO L225 Difference]: With dead ends: 2874 [2021-03-11 14:47:15,585 INFO L226 Difference]: Without dead ends: 2850 [2021-03-11 14:47:15,585 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1255.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:15,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2021-03-11 14:47:15,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 1564. [2021-03-11 14:47:15,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.4894433781190015) internal successors, (7017), 1563 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:15,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7017 transitions. [2021-03-11 14:47:15,637 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7017 transitions. Word has length 28 [2021-03-11 14:47:15,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:15,637 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7017 transitions. [2021-03-11 14:47:15,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7017 transitions. [2021-03-11 14:47:15,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:15,640 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:15,640 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:15,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable915 [2021-03-11 14:47:15,640 INFO L428 AbstractCegarLoop]: === Iteration 917 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:15,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:15,640 INFO L82 PathProgramCache]: Analyzing trace with hash 868221284, now seen corresponding path program 909 times [2021-03-11 14:47:15,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:15,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383006235] [2021-03-11 14:47:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:15,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:15,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:15,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:15,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:15,697 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:15,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:15,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:15,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:15,807 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:15,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:15,890 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:15,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:15,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:16,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:16,199 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:16,203 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:16,432 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:16,437 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:16,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:16,616 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:16,621 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:16,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:16,776 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:16,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383006235] [2021-03-11 14:47:16,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:16,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:16,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743617280] [2021-03-11 14:47:16,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:16,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:16,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:16,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:16,779 INFO L87 Difference]: Start difference. First operand 1564 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:17,319 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:17,374 INFO L93 Difference]: Finished difference Result 2864 states and 11415 transitions. [2021-03-11 14:47:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:17,390 INFO L225 Difference]: With dead ends: 2864 [2021-03-11 14:47:17,390 INFO L226 Difference]: Without dead ends: 2848 [2021-03-11 14:47:17,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1304.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:17,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-03-11 14:47:17,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1567. [2021-03-11 14:47:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.484035759897829) internal successors, (7022), 1566 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7022 transitions. [2021-03-11 14:47:17,442 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7022 transitions. Word has length 28 [2021-03-11 14:47:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:17,442 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7022 transitions. [2021-03-11 14:47:17,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7022 transitions. [2021-03-11 14:47:17,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:17,445 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:17,445 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:17,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable916 [2021-03-11 14:47:17,445 INFO L428 AbstractCegarLoop]: === Iteration 918 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:17,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:17,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1460414368, now seen corresponding path program 910 times [2021-03-11 14:47:17,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:17,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936804939] [2021-03-11 14:47:17,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:17,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:17,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:17,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:17,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:17,491 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:17,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:17,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:17,605 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:17,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:17,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:17,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:17,789 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:17,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:17,990 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:17,995 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:17,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:18,227 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:18,232 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:18,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:18,396 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:18,400 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:18,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:18,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936804939] [2021-03-11 14:47:18,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:18,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:18,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434255417] [2021-03-11 14:47:18,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:18,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:18,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:18,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:18,540 INFO L87 Difference]: Start difference. First operand 1567 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:19,218 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:19,289 INFO L93 Difference]: Finished difference Result 2861 states and 11406 transitions. [2021-03-11 14:47:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:19,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:19,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:19,305 INFO L225 Difference]: With dead ends: 2861 [2021-03-11 14:47:19,305 INFO L226 Difference]: Without dead ends: 2845 [2021-03-11 14:47:19,305 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1288.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2021-03-11 14:47:19,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 1564. [2021-03-11 14:47:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 4.487523992322457) internal successors, (7014), 1563 states have internal predecessors, (7014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 7014 transitions. [2021-03-11 14:47:19,358 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 7014 transitions. Word has length 28 [2021-03-11 14:47:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:19,358 INFO L480 AbstractCegarLoop]: Abstraction has 1564 states and 7014 transitions. [2021-03-11 14:47:19,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 7014 transitions. [2021-03-11 14:47:19,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:19,361 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:19,361 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:19,361 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable917 [2021-03-11 14:47:19,361 INFO L428 AbstractCegarLoop]: === Iteration 919 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:19,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1916334808, now seen corresponding path program 911 times [2021-03-11 14:47:19,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:19,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850357] [2021-03-11 14:47:19,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:19,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:19,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:19,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:19,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:19,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:19,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:19,522 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:19,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:19,608 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:19,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:19,714 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:19,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:19,905 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:19,910 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:19,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:20,134 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:47:20,139 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:20,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:20,316 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:20,321 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:20,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:20,480 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:20,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850357] [2021-03-11 14:47:20,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:20,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:20,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261581267] [2021-03-11 14:47:20,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:20,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:20,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:20,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:20,483 INFO L87 Difference]: Start difference. First operand 1564 states and 7014 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:21,156 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:21,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:21,208 INFO L93 Difference]: Finished difference Result 2868 states and 11420 transitions. [2021-03-11 14:47:21,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:21,214 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:21,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:21,224 INFO L225 Difference]: With dead ends: 2868 [2021-03-11 14:47:21,224 INFO L226 Difference]: Without dead ends: 2850 [2021-03-11 14:47:21,224 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1346.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2021-03-11 14:47:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 1567. [2021-03-11 14:47:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.482120051085569) internal successors, (7019), 1566 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7019 transitions. [2021-03-11 14:47:21,277 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7019 transitions. Word has length 28 [2021-03-11 14:47:21,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:21,277 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7019 transitions. [2021-03-11 14:47:21,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7019 transitions. [2021-03-11 14:47:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:21,280 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:21,280 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:21,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable918 [2021-03-11 14:47:21,280 INFO L428 AbstractCegarLoop]: === Iteration 920 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:21,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:21,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1740461340, now seen corresponding path program 912 times [2021-03-11 14:47:21,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:21,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945868917] [2021-03-11 14:47:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:21,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:21,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:21,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:21,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:21,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:21,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:21,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:21,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:21,447 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:21,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:21,535 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 14:47:21,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 14:47:21,642 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:21,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:21,842 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:21,846 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:21,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:22,060 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:47:22,065 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:22,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:22,240 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:22,245 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:22,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:22,409 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:22,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:22,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945868917] [2021-03-11 14:47:22,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:22,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:22,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238294837] [2021-03-11 14:47:22,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:22,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:22,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:22,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:22,412 INFO L87 Difference]: Start difference. First operand 1567 states and 7019 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:23,182 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:23,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:23,278 INFO L93 Difference]: Finished difference Result 2863 states and 11407 transitions. [2021-03-11 14:47:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:23,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:23,296 INFO L225 Difference]: With dead ends: 2863 [2021-03-11 14:47:23,296 INFO L226 Difference]: Without dead ends: 2841 [2021-03-11 14:47:23,296 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1378.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2021-03-11 14:47:23,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1558. [2021-03-11 14:47:23,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 4.496467565831727) internal successors, (7001), 1557 states have internal predecessors, (7001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 7001 transitions. [2021-03-11 14:47:23,354 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 7001 transitions. Word has length 28 [2021-03-11 14:47:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:23,354 INFO L480 AbstractCegarLoop]: Abstraction has 1558 states and 7001 transitions. [2021-03-11 14:47:23,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 7001 transitions. [2021-03-11 14:47:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:23,357 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:23,358 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:23,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable919 [2021-03-11 14:47:23,358 INFO L428 AbstractCegarLoop]: === Iteration 921 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:23,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1750104872, now seen corresponding path program 913 times [2021-03-11 14:47:23,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:23,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880645291] [2021-03-11 14:47:23,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:23,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:23,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:23,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:23,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:23,411 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:23,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:23,470 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:23,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:23,544 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:23,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:23,640 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:23,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:23,829 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:23,834 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:23,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:24,069 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:47:24,074 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:47:24,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:47:24,311 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:47:24,316 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:24,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:24,485 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:24,490 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:24,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:24,648 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:24,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:24,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880645291] [2021-03-11 14:47:24,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:24,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:24,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270110512] [2021-03-11 14:47:24,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:24,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:24,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:24,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:24,652 INFO L87 Difference]: Start difference. First operand 1558 states and 7001 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:25,349 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:25,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:25,413 INFO L93 Difference]: Finished difference Result 2908 states and 11528 transitions. [2021-03-11 14:47:25,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:25,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:25,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:25,430 INFO L225 Difference]: With dead ends: 2908 [2021-03-11 14:47:25,430 INFO L226 Difference]: Without dead ends: 2893 [2021-03-11 14:47:25,430 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1527.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:25,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-03-11 14:47:25,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1576. [2021-03-11 14:47:25,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.4806349206349205) internal successors, (7057), 1575 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7057 transitions. [2021-03-11 14:47:25,482 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7057 transitions. Word has length 28 [2021-03-11 14:47:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:25,482 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7057 transitions. [2021-03-11 14:47:25,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7057 transitions. [2021-03-11 14:47:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:25,485 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:25,485 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:25,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable920 [2021-03-11 14:47:25,485 INFO L428 AbstractCegarLoop]: === Iteration 922 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:25,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:25,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1055457428, now seen corresponding path program 914 times [2021-03-11 14:47:25,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:25,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362749441] [2021-03-11 14:47:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:25,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:25,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:25,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:25,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:25,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:25,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:25,584 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:25,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:25,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:25,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:25,738 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:25,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:25,903 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:25,908 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:25,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:26,126 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:47:26,131 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:47:26,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:47:26,376 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:47:26,381 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:47:26,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:47:26,563 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:26,569 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:26,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:26,724 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:26,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362749441] [2021-03-11 14:47:26,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:26,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:26,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360947060] [2021-03-11 14:47:26,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:26,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:26,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:26,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:26,727 INFO L87 Difference]: Start difference. First operand 1576 states and 7057 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:27,330 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:47:27,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:27,394 INFO L93 Difference]: Finished difference Result 2913 states and 11532 transitions. [2021-03-11 14:47:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:27,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:27,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:27,408 INFO L225 Difference]: With dead ends: 2913 [2021-03-11 14:47:27,408 INFO L226 Difference]: Without dead ends: 2887 [2021-03-11 14:47:27,409 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1319.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2021-03-11 14:47:27,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1570. [2021-03-11 14:47:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.486934353091141) internal successors, (7040), 1569 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7040 transitions. [2021-03-11 14:47:27,461 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7040 transitions. Word has length 28 [2021-03-11 14:47:27,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:27,461 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7040 transitions. [2021-03-11 14:47:27,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7040 transitions. [2021-03-11 14:47:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:27,464 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:27,464 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:27,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable921 [2021-03-11 14:47:27,465 INFO L428 AbstractCegarLoop]: === Iteration 923 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:27,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:27,465 INFO L82 PathProgramCache]: Analyzing trace with hash -933921466, now seen corresponding path program 915 times [2021-03-11 14:47:27,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:27,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240865612] [2021-03-11 14:47:27,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:27,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:27,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:27,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:27,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:27,512 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:27,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:27,559 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:27,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:27,623 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:27,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:27,703 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:27,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:27,873 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:27,878 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:27,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:28,098 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:47:28,103 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:28,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:28,354 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:28,358 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:28,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:28,534 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:28,539 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:28,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:28,695 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:28,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240865612] [2021-03-11 14:47:28,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:28,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:28,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035230300] [2021-03-11 14:47:28,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:28,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:28,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:28,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:28,698 INFO L87 Difference]: Start difference. First operand 1570 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:29,356 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:29,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:29,408 INFO L93 Difference]: Finished difference Result 2905 states and 11517 transitions. [2021-03-11 14:47:29,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:29,415 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:29,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:29,425 INFO L225 Difference]: With dead ends: 2905 [2021-03-11 14:47:29,425 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:47:29,425 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1427.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:29,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:47:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1575. [2021-03-11 14:47:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.478398983481576) internal successors, (7049), 1574 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7049 transitions. [2021-03-11 14:47:29,511 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7049 transitions. Word has length 28 [2021-03-11 14:47:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:29,511 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7049 transitions. [2021-03-11 14:47:29,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7049 transitions. [2021-03-11 14:47:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:29,514 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:29,514 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:29,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable922 [2021-03-11 14:47:29,514 INFO L428 AbstractCegarLoop]: === Iteration 924 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:29,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:29,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1300186028, now seen corresponding path program 916 times [2021-03-11 14:47:29,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:29,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736089591] [2021-03-11 14:47:29,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:29,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:29,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:29,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:29,562 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:29,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:29,613 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:29,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:29,679 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:29,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:29,765 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:29,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:29,929 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:29,933 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:29,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:30,160 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:47:30,165 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:30,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:30,424 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:30,428 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:30,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:30,600 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:30,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:30,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736089591] [2021-03-11 14:47:30,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:30,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:30,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669699087] [2021-03-11 14:47:30,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:30,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:30,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:30,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:30,741 INFO L87 Difference]: Start difference. First operand 1575 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:31,409 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:31,486 INFO L93 Difference]: Finished difference Result 2908 states and 11518 transitions. [2021-03-11 14:47:31,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:31,496 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:31,507 INFO L225 Difference]: With dead ends: 2908 [2021-03-11 14:47:31,507 INFO L226 Difference]: Without dead ends: 2885 [2021-03-11 14:47:31,507 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1444.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2021-03-11 14:47:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1570. [2021-03-11 14:47:31,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.483747609942639) internal successors, (7035), 1569 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7035 transitions. [2021-03-11 14:47:31,565 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7035 transitions. Word has length 28 [2021-03-11 14:47:31,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:31,565 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7035 transitions. [2021-03-11 14:47:31,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7035 transitions. [2021-03-11 14:47:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:31,568 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:31,568 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:31,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable923 [2021-03-11 14:47:31,568 INFO L428 AbstractCegarLoop]: === Iteration 925 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:31,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:31,569 INFO L82 PathProgramCache]: Analyzing trace with hash -517601850, now seen corresponding path program 917 times [2021-03-11 14:47:31,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:31,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316935401] [2021-03-11 14:47:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:31,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:31,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:31,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:31,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:31,618 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:31,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:31,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:31,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:31,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:31,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:31,827 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:31,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:32,001 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:32,005 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:32,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:32,231 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:47:32,236 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:47:32,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:47:32,403 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-11 14:47:32,408 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:47:32,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:47:32,595 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:32,600 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:32,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:32,755 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:32,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316935401] [2021-03-11 14:47:32,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:32,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:32,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888130085] [2021-03-11 14:47:32,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:32,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:32,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:32,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:32,759 INFO L87 Difference]: Start difference. First operand 1570 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:33,225 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:47:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:33,283 INFO L93 Difference]: Finished difference Result 2920 states and 11542 transitions. [2021-03-11 14:47:33,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:33,289 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:33,299 INFO L225 Difference]: With dead ends: 2920 [2021-03-11 14:47:33,299 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:47:33,299 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1246.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:47:33,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1580. [2021-03-11 14:47:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 4.466117796073465) internal successors, (7052), 1579 states have internal predecessors, (7052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 7052 transitions. [2021-03-11 14:47:33,352 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 7052 transitions. Word has length 28 [2021-03-11 14:47:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:33,352 INFO L480 AbstractCegarLoop]: Abstraction has 1580 states and 7052 transitions. [2021-03-11 14:47:33,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 7052 transitions. [2021-03-11 14:47:33,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:33,356 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:33,356 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:33,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable924 [2021-03-11 14:47:33,356 INFO L428 AbstractCegarLoop]: === Iteration 926 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:33,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:33,356 INFO L82 PathProgramCache]: Analyzing trace with hash 227100648, now seen corresponding path program 918 times [2021-03-11 14:47:33,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:33,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332504195] [2021-03-11 14:47:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:33,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:33,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:33,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:33,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:33,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:33,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:33,455 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:33,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:33,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:33,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:33,612 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:33,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:33,782 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:33,787 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:33,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:34,012 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:47:34,016 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:47:34,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:47:34,167 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:34,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:34,337 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:34,342 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:34,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:34,499 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:34,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332504195] [2021-03-11 14:47:34,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:34,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:34,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128793652] [2021-03-11 14:47:34,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:34,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:34,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:34,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:34,503 INFO L87 Difference]: Start difference. First operand 1580 states and 7052 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:35,249 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:35,314 INFO L93 Difference]: Finished difference Result 2918 states and 11530 transitions. [2021-03-11 14:47:35,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:35,319 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:35,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:35,327 INFO L225 Difference]: With dead ends: 2918 [2021-03-11 14:47:35,327 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:47:35,327 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1349.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:35,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:47:35,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1563. [2021-03-11 14:47:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.492317541613316) internal successors, (7017), 1562 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:35,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7017 transitions. [2021-03-11 14:47:35,377 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7017 transitions. Word has length 28 [2021-03-11 14:47:35,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:35,377 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7017 transitions. [2021-03-11 14:47:35,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:35,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7017 transitions. [2021-03-11 14:47:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:35,380 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:35,380 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:35,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable925 [2021-03-11 14:47:35,380 INFO L428 AbstractCegarLoop]: === Iteration 927 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:35,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:35,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1034184220, now seen corresponding path program 919 times [2021-03-11 14:47:35,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:35,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490039228] [2021-03-11 14:47:35,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:35,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:35,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:35,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:35,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:35,421 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:35,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:35,464 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:35,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:35,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:35,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:35,595 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:35,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:35,745 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:35,749 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:47:35,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:47:35,934 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:47:35,939 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:47:35,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:47:36,171 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:47:36,175 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:36,346 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:36,351 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:36,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:36,499 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:36,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490039228] [2021-03-11 14:47:36,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:36,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:36,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040621294] [2021-03-11 14:47:36,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:36,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:36,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:36,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:36,502 INFO L87 Difference]: Start difference. First operand 1563 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:37,123 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:37,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:37,175 INFO L93 Difference]: Finished difference Result 2892 states and 11481 transitions. [2021-03-11 14:47:37,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:37,181 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:37,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:37,188 INFO L225 Difference]: With dead ends: 2892 [2021-03-11 14:47:37,188 INFO L226 Difference]: Without dead ends: 2877 [2021-03-11 14:47:37,188 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1315.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2021-03-11 14:47:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 1573. [2021-03-11 14:47:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.479643765903308) internal successors, (7042), 1572 states have internal predecessors, (7042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7042 transitions. [2021-03-11 14:47:37,241 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7042 transitions. Word has length 28 [2021-03-11 14:47:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:37,241 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7042 transitions. [2021-03-11 14:47:37,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7042 transitions. [2021-03-11 14:47:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:37,244 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:37,244 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:37,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable926 [2021-03-11 14:47:37,245 INFO L428 AbstractCegarLoop]: === Iteration 928 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:37,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:37,245 INFO L82 PathProgramCache]: Analyzing trace with hash 455220776, now seen corresponding path program 920 times [2021-03-11 14:47:37,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:37,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559777932] [2021-03-11 14:47:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:37,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:37,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:37,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:37,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:37,307 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:37,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:37,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:37,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:37,427 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:37,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:37,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:37,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:37,686 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:37,691 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:47:37,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:47:37,885 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:47:37,890 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:47:37,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:47:38,127 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-03-11 14:47:38,133 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:47:38,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:47:38,319 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:38,324 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:38,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:38,484 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:38,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559777932] [2021-03-11 14:47:38,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:38,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:38,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241432286] [2021-03-11 14:47:38,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:38,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:38,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:38,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:38,487 INFO L87 Difference]: Start difference. First operand 1573 states and 7042 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:39,005 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:47:39,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:39,074 INFO L93 Difference]: Finished difference Result 2897 states and 11485 transitions. [2021-03-11 14:47:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:39,080 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:39,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:39,088 INFO L225 Difference]: With dead ends: 2897 [2021-03-11 14:47:39,088 INFO L226 Difference]: Without dead ends: 2871 [2021-03-11 14:47:39,088 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1316.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-03-11 14:47:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1567. [2021-03-11 14:47:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.487228607918263) internal successors, (7027), 1566 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7027 transitions. [2021-03-11 14:47:39,141 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7027 transitions. Word has length 28 [2021-03-11 14:47:39,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:39,141 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7027 transitions. [2021-03-11 14:47:39,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:39,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7027 transitions. [2021-03-11 14:47:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:39,144 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:39,144 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:39,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable927 [2021-03-11 14:47:39,145 INFO L428 AbstractCegarLoop]: === Iteration 929 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:39,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:39,145 INFO L82 PathProgramCache]: Analyzing trace with hash 133429096, now seen corresponding path program 921 times [2021-03-11 14:47:39,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:39,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902166786] [2021-03-11 14:47:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:39,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:39,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:39,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:39,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:39,192 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:39,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:39,243 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:39,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:39,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:39,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:39,396 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:39,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:39,563 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:39,568 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:47:39,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:47:39,768 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:47:39,773 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:39,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:39,926 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:39,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:40,110 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:40,115 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:40,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:40,271 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:40,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:40,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902166786] [2021-03-11 14:47:40,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:40,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:40,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715016394] [2021-03-11 14:47:40,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:40,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:40,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:40,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:40,274 INFO L87 Difference]: Start difference. First operand 1567 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:40,983 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:41,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:41,052 INFO L93 Difference]: Finished difference Result 2882 states and 11456 transitions. [2021-03-11 14:47:41,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:41,060 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:41,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:41,070 INFO L225 Difference]: With dead ends: 2882 [2021-03-11 14:47:41,070 INFO L226 Difference]: Without dead ends: 2867 [2021-03-11 14:47:41,070 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1362.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2021-03-11 14:47:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 1570. [2021-03-11 14:47:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.4818355640535374) internal successors, (7032), 1569 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7032 transitions. [2021-03-11 14:47:41,127 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7032 transitions. Word has length 28 [2021-03-11 14:47:41,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:41,127 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7032 transitions. [2021-03-11 14:47:41,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7032 transitions. [2021-03-11 14:47:41,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:41,130 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:41,130 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:41,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable928 [2021-03-11 14:47:41,130 INFO L428 AbstractCegarLoop]: === Iteration 930 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:41,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:41,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1213701660, now seen corresponding path program 922 times [2021-03-11 14:47:41,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:41,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784562594] [2021-03-11 14:47:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:41,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:41,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:41,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:41,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:41,176 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:41,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:41,225 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:41,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:41,292 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:41,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:41,378 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:41,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:41,538 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:41,543 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:47:41,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:47:41,775 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:47:41,780 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:41,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:41,955 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-11 14:47:41,961 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:41,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:42,162 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:42,168 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:42,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:42,359 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:42,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784562594] [2021-03-11 14:47:42,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:42,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:42,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3924802] [2021-03-11 14:47:42,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:42,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:42,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:42,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:42,363 INFO L87 Difference]: Start difference. First operand 1570 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:43,155 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:43,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:43,233 INFO L93 Difference]: Finished difference Result 2880 states and 11449 transitions. [2021-03-11 14:47:43,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:43,239 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:43,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:43,248 INFO L225 Difference]: With dead ends: 2880 [2021-03-11 14:47:43,248 INFO L226 Difference]: Without dead ends: 2864 [2021-03-11 14:47:43,248 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1497.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-03-11 14:47:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1567. [2021-03-11 14:47:43,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.4853128991060025) internal successors, (7024), 1566 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:43,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7024 transitions. [2021-03-11 14:47:43,304 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7024 transitions. Word has length 28 [2021-03-11 14:47:43,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:43,304 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7024 transitions. [2021-03-11 14:47:43,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7024 transitions. [2021-03-11 14:47:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:43,307 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:43,307 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:43,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable929 [2021-03-11 14:47:43,307 INFO L428 AbstractCegarLoop]: === Iteration 931 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:43,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:43,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1643840300, now seen corresponding path program 923 times [2021-03-11 14:47:43,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:43,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914787377] [2021-03-11 14:47:43,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:43,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:43,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:43,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:43,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:43,356 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:43,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:43,409 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:43,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:43,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:43,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:43,576 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:43,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:43,746 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:43,751 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:47:43,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:47:43,948 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:47:43,953 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:47:43,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:47:44,166 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:47:44,172 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:47:44,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:47:44,350 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:44,355 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:44,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:44,506 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:44,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914787377] [2021-03-11 14:47:44,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:44,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:44,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810530180] [2021-03-11 14:47:44,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:44,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:44,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:44,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:44,510 INFO L87 Difference]: Start difference. First operand 1567 states and 7024 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:45,019 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:47:45,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:45,073 INFO L93 Difference]: Finished difference Result 2893 states and 11473 transitions. [2021-03-11 14:47:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:45,081 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:45,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:45,090 INFO L225 Difference]: With dead ends: 2893 [2021-03-11 14:47:45,090 INFO L226 Difference]: Without dead ends: 2873 [2021-03-11 14:47:45,090 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1292.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:45,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2021-03-11 14:47:45,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 1571. [2021-03-11 14:47:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.477707006369426) internal successors, (7030), 1570 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7030 transitions. [2021-03-11 14:47:45,143 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7030 transitions. Word has length 28 [2021-03-11 14:47:45,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:45,143 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7030 transitions. [2021-03-11 14:47:45,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:45,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7030 transitions. [2021-03-11 14:47:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:45,147 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:45,147 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:45,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable930 [2021-03-11 14:47:45,147 INFO L428 AbstractCegarLoop]: === Iteration 932 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:45,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:45,147 INFO L82 PathProgramCache]: Analyzing trace with hash -119610072, now seen corresponding path program 924 times [2021-03-11 14:47:45,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:45,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401784546] [2021-03-11 14:47:45,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:45,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:45,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:45,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:45,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:45,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:45,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:45,245 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:45,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:45,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:45,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:45,403 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:45,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:45,577 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:45,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 14:47:45,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 14:47:45,777 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-03-11 14:47:45,781 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:47:45,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:47:45,970 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:47:45,974 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:45,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:46,131 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:46,135 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:46,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:46,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401784546] [2021-03-11 14:47:46,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:46,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:46,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915388429] [2021-03-11 14:47:46,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:46,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:46,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:46,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:46,280 INFO L87 Difference]: Start difference. First operand 1571 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:46,877 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:46,952 INFO L93 Difference]: Finished difference Result 2886 states and 11456 transitions. [2021-03-11 14:47:46,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:46,959 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:46,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:46,968 INFO L225 Difference]: With dead ends: 2886 [2021-03-11 14:47:46,968 INFO L226 Difference]: Without dead ends: 2865 [2021-03-11 14:47:46,968 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1339.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2021-03-11 14:47:47,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 1563. [2021-03-11 14:47:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.489756722151088) internal successors, (7013), 1562 states have internal predecessors, (7013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:47,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7013 transitions. [2021-03-11 14:47:47,021 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7013 transitions. Word has length 28 [2021-03-11 14:47:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:47,021 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7013 transitions. [2021-03-11 14:47:47,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7013 transitions. [2021-03-11 14:47:47,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:47,025 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:47,025 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:47,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable931 [2021-03-11 14:47:47,025 INFO L428 AbstractCegarLoop]: === Iteration 933 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:47,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:47,025 INFO L82 PathProgramCache]: Analyzing trace with hash 902352962, now seen corresponding path program 925 times [2021-03-11 14:47:47,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:47,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836808293] [2021-03-11 14:47:47,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:47,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:47,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:47,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:47,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:47,076 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:47,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:47,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:47,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:47,196 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:47,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:47,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:47,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:47,451 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:47,457 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:47,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:47,665 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:47,670 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:47,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:47,942 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:47,947 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:47,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:48,129 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:48,134 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:48,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:48,297 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:48,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836808293] [2021-03-11 14:47:48,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:48,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:48,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996031186] [2021-03-11 14:47:48,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:48,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:48,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:48,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:48,301 INFO L87 Difference]: Start difference. First operand 1563 states and 7013 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:49,153 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:49,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:49,212 INFO L93 Difference]: Finished difference Result 2884 states and 11462 transitions. [2021-03-11 14:47:49,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:49,219 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:49,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:49,228 INFO L225 Difference]: With dead ends: 2884 [2021-03-11 14:47:49,228 INFO L226 Difference]: Without dead ends: 2869 [2021-03-11 14:47:49,228 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1462.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:49,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2021-03-11 14:47:49,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 1571. [2021-03-11 14:47:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4796178343949045) internal successors, (7033), 1570 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:49,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7033 transitions. [2021-03-11 14:47:49,281 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7033 transitions. Word has length 28 [2021-03-11 14:47:49,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:49,281 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7033 transitions. [2021-03-11 14:47:49,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7033 transitions. [2021-03-11 14:47:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:49,284 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:49,284 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:49,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable932 [2021-03-11 14:47:49,285 INFO L428 AbstractCegarLoop]: === Iteration 934 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:49,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1158506840, now seen corresponding path program 926 times [2021-03-11 14:47:49,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:49,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682258930] [2021-03-11 14:47:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:49,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:49,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:49,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:49,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:49,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:49,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:49,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:49,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:49,447 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:49,534 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:49,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:49,710 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:49,715 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:49,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:49,927 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:49,932 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:49,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:50,192 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:47:50,197 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:50,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:50,377 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:50,383 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:50,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:50,547 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:50,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682258930] [2021-03-11 14:47:50,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:50,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:50,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340912554] [2021-03-11 14:47:50,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:50,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:50,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:50,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:50,550 INFO L87 Difference]: Start difference. First operand 1571 states and 7033 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:51,226 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:51,297 INFO L93 Difference]: Finished difference Result 2887 states and 11463 transitions. [2021-03-11 14:47:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:51,304 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:51,313 INFO L225 Difference]: With dead ends: 2887 [2021-03-11 14:47:51,313 INFO L226 Difference]: Without dead ends: 2864 [2021-03-11 14:47:51,313 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1491.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-03-11 14:47:51,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1566. [2021-03-11 14:47:51,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.486261980830671) internal successors, (7021), 1565 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:51,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7021 transitions. [2021-03-11 14:47:51,366 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7021 transitions. Word has length 28 [2021-03-11 14:47:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:51,366 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7021 transitions. [2021-03-11 14:47:51,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7021 transitions. [2021-03-11 14:47:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:51,369 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:51,369 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:51,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable933 [2021-03-11 14:47:51,369 INFO L428 AbstractCegarLoop]: === Iteration 935 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:51,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2059463174, now seen corresponding path program 927 times [2021-03-11 14:47:51,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:51,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878172060] [2021-03-11 14:47:51,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:51,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:51,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:51,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:51,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:51,418 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:51,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:51,469 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:51,536 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:51,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:51,627 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:51,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:51,796 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:51,801 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:51,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:51,989 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:51,993 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:51,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:52,125 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:52,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:52,285 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:52,290 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:52,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:52,458 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:52,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878172060] [2021-03-11 14:47:52,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:52,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:52,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173491428] [2021-03-11 14:47:52,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:52,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:52,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:52,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:52,462 INFO L87 Difference]: Start difference. First operand 1566 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:53,100 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:47:53,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:53,160 INFO L93 Difference]: Finished difference Result 2877 states and 11443 transitions. [2021-03-11 14:47:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:53,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:53,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:53,177 INFO L225 Difference]: With dead ends: 2877 [2021-03-11 14:47:53,177 INFO L226 Difference]: Without dead ends: 2862 [2021-03-11 14:47:53,177 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1299.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:53,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2021-03-11 14:47:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 1569. [2021-03-11 14:47:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.480867346938775) internal successors, (7026), 1568 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:53,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7026 transitions. [2021-03-11 14:47:53,232 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7026 transitions. Word has length 28 [2021-03-11 14:47:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:53,232 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7026 transitions. [2021-03-11 14:47:53,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7026 transitions. [2021-03-11 14:47:53,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:53,235 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:53,235 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:53,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable934 [2021-03-11 14:47:53,235 INFO L428 AbstractCegarLoop]: === Iteration 936 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash 712332418, now seen corresponding path program 928 times [2021-03-11 14:47:53,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:53,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056258453] [2021-03-11 14:47:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:53,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:53,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:53,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:53,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:53,285 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:53,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:53,336 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:53,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:53,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:53,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:53,500 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:53,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:53,674 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:53,679 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:53,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:53,891 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:53,896 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:53,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:54,046 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:54,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:54,226 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:54,232 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:54,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:54,399 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:54,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056258453] [2021-03-11 14:47:54,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:54,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:54,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318755726] [2021-03-11 14:47:54,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:54,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:54,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:54,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:54,403 INFO L87 Difference]: Start difference. First operand 1569 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:55,073 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:55,150 INFO L93 Difference]: Finished difference Result 2875 states and 11436 transitions. [2021-03-11 14:47:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:55,157 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:55,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:55,165 INFO L225 Difference]: With dead ends: 2875 [2021-03-11 14:47:55,166 INFO L226 Difference]: Without dead ends: 2859 [2021-03-11 14:47:55,166 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1356.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:55,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2021-03-11 14:47:55,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 1566. [2021-03-11 14:47:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.4843450479233224) internal successors, (7018), 1565 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7018 transitions. [2021-03-11 14:47:55,218 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7018 transitions. Word has length 28 [2021-03-11 14:47:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:55,218 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7018 transitions. [2021-03-11 14:47:55,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7018 transitions. [2021-03-11 14:47:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:55,221 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:55,221 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:55,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable935 [2021-03-11 14:47:55,221 INFO L428 AbstractCegarLoop]: === Iteration 937 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:55,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:55,221 INFO L82 PathProgramCache]: Analyzing trace with hash 30112684, now seen corresponding path program 929 times [2021-03-11 14:47:55,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:55,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565468089] [2021-03-11 14:47:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:55,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:55,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:55,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:55,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:55,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:55,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:55,317 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:55,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:55,385 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:55,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:55,474 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:55,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:55,648 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:55,653 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:55,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:55,863 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:55,867 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:55,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:56,092 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:47:56,097 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:56,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:56,279 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:56,284 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:56,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:56,443 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:56,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565468089] [2021-03-11 14:47:56,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:56,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:56,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687589708] [2021-03-11 14:47:56,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:56,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:56,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:56,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:56,447 INFO L87 Difference]: Start difference. First operand 1566 states and 7018 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:57,101 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:47:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:57,160 INFO L93 Difference]: Finished difference Result 2883 states and 11452 transitions. [2021-03-11 14:47:57,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:57,167 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:57,178 INFO L225 Difference]: With dead ends: 2883 [2021-03-11 14:47:57,178 INFO L226 Difference]: Without dead ends: 2865 [2021-03-11 14:47:57,178 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1458.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:57,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2021-03-11 14:47:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 1569. [2021-03-11 14:47:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.478954081632653) internal successors, (7023), 1568 states have internal predecessors, (7023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7023 transitions. [2021-03-11 14:47:57,231 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7023 transitions. Word has length 28 [2021-03-11 14:47:57,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:57,231 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7023 transitions. [2021-03-11 14:47:57,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7023 transitions. [2021-03-11 14:47:57,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:57,234 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:57,235 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:57,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable936 [2021-03-11 14:47:57,235 INFO L428 AbstractCegarLoop]: === Iteration 938 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:57,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:57,235 INFO L82 PathProgramCache]: Analyzing trace with hash 205986152, now seen corresponding path program 930 times [2021-03-11 14:47:57,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:57,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026824140] [2021-03-11 14:47:57,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:57,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:57,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:57,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:57,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:57,283 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:57,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:57,335 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:57,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:57,400 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:57,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:57,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:57,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:57,662 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:57,667 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:47:57,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:47:57,881 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:47:57,886 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:47:57,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:47:58,127 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:47:58,133 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:47:58,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:47:58,309 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:47:58,314 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:47:58,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:47:58,479 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:47:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:47:58,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026824140] [2021-03-11 14:47:58,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:47:58,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:47:58,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899419248] [2021-03-11 14:47:58,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:47:58,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:47:58,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:47:58,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:47:58,483 INFO L87 Difference]: Start difference. First operand 1569 states and 7023 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:59,128 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:47:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:47:59,200 INFO L93 Difference]: Finished difference Result 2878 states and 11439 transitions. [2021-03-11 14:47:59,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:47:59,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:47:59,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:47:59,214 INFO L225 Difference]: With dead ends: 2878 [2021-03-11 14:47:59,214 INFO L226 Difference]: Without dead ends: 2859 [2021-03-11 14:47:59,214 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1446.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:47:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2021-03-11 14:47:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 1563. [2021-03-11 14:47:59,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.4878361075544175) internal successors, (7010), 1562 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7010 transitions. [2021-03-11 14:47:59,264 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7010 transitions. Word has length 28 [2021-03-11 14:47:59,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:47:59,264 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7010 transitions. [2021-03-11 14:47:59,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:47:59,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7010 transitions. [2021-03-11 14:47:59,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:47:59,267 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:47:59,267 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:47:59,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable937 [2021-03-11 14:47:59,267 INFO L428 AbstractCegarLoop]: === Iteration 939 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:47:59,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:47:59,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1969865026, now seen corresponding path program 931 times [2021-03-11 14:47:59,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:47:59,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940221364] [2021-03-11 14:47:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:47:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:47:59,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:59,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:47:59,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:47:59,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:47:59,310 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:47:59,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:47:59,353 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:47:59,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:47:59,421 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:47:59,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:47:59,510 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:47:59,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:47:59,689 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:47:59,693 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:47:59,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:47:59,892 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-03-11 14:47:59,896 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:47:59,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:00,064 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-11 14:48:00,069 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:00,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:00,262 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:00,267 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:00,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:00,452 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:00,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940221364] [2021-03-11 14:48:00,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:00,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:00,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177351822] [2021-03-11 14:48:00,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:00,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:00,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:00,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:00,456 INFO L87 Difference]: Start difference. First operand 1563 states and 7010 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:01,057 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:01,116 INFO L93 Difference]: Finished difference Result 2912 states and 11517 transitions. [2021-03-11 14:48:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:01,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:01,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:01,133 INFO L225 Difference]: With dead ends: 2912 [2021-03-11 14:48:01,133 INFO L226 Difference]: Without dead ends: 2892 [2021-03-11 14:48:01,133 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1288.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2021-03-11 14:48:01,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 1578. [2021-03-11 14:48:01,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.4660748256182625) internal successors, (7043), 1577 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7043 transitions. [2021-03-11 14:48:01,190 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7043 transitions. Word has length 28 [2021-03-11 14:48:01,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:01,190 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7043 transitions. [2021-03-11 14:48:01,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7043 transitions. [2021-03-11 14:48:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:01,194 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:01,194 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:01,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable938 [2021-03-11 14:48:01,194 INFO L428 AbstractCegarLoop]: === Iteration 940 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:01,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:01,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1580399772, now seen corresponding path program 932 times [2021-03-11 14:48:01,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:01,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944785835] [2021-03-11 14:48:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:01,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:01,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:01,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:01,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:01,244 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:01,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:01,295 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:01,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:01,357 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:01,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:01,439 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:01,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:01,591 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:48:01,596 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:01,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:01,794 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-03-11 14:48:01,798 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:48:01,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:01,968 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-11 14:48:01,974 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:01,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:02,190 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:02,197 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:02,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:02,384 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:02,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944785835] [2021-03-11 14:48:02,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:02,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:02,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85435566] [2021-03-11 14:48:02,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:02,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:02,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:02,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:02,387 INFO L87 Difference]: Start difference. First operand 1578 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:03,094 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:03,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:03,163 INFO L93 Difference]: Finished difference Result 2910 states and 11505 transitions. [2021-03-11 14:48:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:03,170 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:03,180 INFO L225 Difference]: With dead ends: 2910 [2021-03-11 14:48:03,180 INFO L226 Difference]: Without dead ends: 2882 [2021-03-11 14:48:03,180 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1437.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-03-11 14:48:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1568. [2021-03-11 14:48:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.480536056158265) internal successors, (7021), 1567 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:03,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7021 transitions. [2021-03-11 14:48:03,234 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7021 transitions. Word has length 28 [2021-03-11 14:48:03,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:03,234 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7021 transitions. [2021-03-11 14:48:03,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7021 transitions. [2021-03-11 14:48:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:03,238 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:03,238 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:03,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable939 [2021-03-11 14:48:03,238 INFO L428 AbstractCegarLoop]: === Iteration 941 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:03,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:03,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1167992058, now seen corresponding path program 933 times [2021-03-11 14:48:03,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:03,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815716082] [2021-03-11 14:48:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:03,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:03,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:03,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:03,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:03,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:03,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:03,340 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:03,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:03,416 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:03,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:03,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:03,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:03,701 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:48:03,706 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:03,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:03,924 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-03-11 14:48:03,929 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:03,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:04,164 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:48:04,169 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:04,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:04,355 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:04,360 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:04,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:04,527 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:04,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815716082] [2021-03-11 14:48:04,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:04,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:04,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087343940] [2021-03-11 14:48:04,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:04,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:04,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:04,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:04,530 INFO L87 Difference]: Start difference. First operand 1568 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:05,056 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:05,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:05,109 INFO L93 Difference]: Finished difference Result 2901 states and 11486 transitions. [2021-03-11 14:48:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:05,124 INFO L225 Difference]: With dead ends: 2901 [2021-03-11 14:48:05,125 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:48:05,125 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1378.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:05,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:48:05,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1572. [2021-03-11 14:48:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.472947167409293) internal successors, (7027), 1571 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:05,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7027 transitions. [2021-03-11 14:48:05,177 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7027 transitions. Word has length 28 [2021-03-11 14:48:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:05,177 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7027 transitions. [2021-03-11 14:48:05,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:05,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7027 transitions. [2021-03-11 14:48:05,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:05,180 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:05,180 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:05,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable940 [2021-03-11 14:48:05,180 INFO L428 AbstractCegarLoop]: === Iteration 942 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:05,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:05,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1363524866, now seen corresponding path program 934 times [2021-03-11 14:48:05,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:05,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861036979] [2021-03-11 14:48:05,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:05,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:05,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:05,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:05,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:05,229 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:05,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:05,281 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:05,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:05,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:05,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:05,442 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:05,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:05,614 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:48:05,619 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:05,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:05,815 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-03-11 14:48:05,820 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:05,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:06,014 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:48:06,018 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:06,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:06,174 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:06,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:06,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861036979] [2021-03-11 14:48:06,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:06,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:06,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563314315] [2021-03-11 14:48:06,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:06,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:06,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:06,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:06,313 INFO L87 Difference]: Start difference. First operand 1572 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:07,139 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:07,225 INFO L93 Difference]: Finished difference Result 2894 states and 11469 transitions. [2021-03-11 14:48:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:07,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:07,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:07,242 INFO L225 Difference]: With dead ends: 2894 [2021-03-11 14:48:07,242 INFO L226 Difference]: Without dead ends: 2877 [2021-03-11 14:48:07,242 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1323.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:07,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2021-03-11 14:48:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 1568. [2021-03-11 14:48:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.477983407785578) internal successors, (7017), 1567 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7017 transitions. [2021-03-11 14:48:07,296 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7017 transitions. Word has length 28 [2021-03-11 14:48:07,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:07,296 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7017 transitions. [2021-03-11 14:48:07,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:07,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7017 transitions. [2021-03-11 14:48:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:07,300 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:07,300 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:07,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable941 [2021-03-11 14:48:07,300 INFO L428 AbstractCegarLoop]: === Iteration 943 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:07,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:07,300 INFO L82 PathProgramCache]: Analyzing trace with hash -412786456, now seen corresponding path program 935 times [2021-03-11 14:48:07,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:07,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142378793] [2021-03-11 14:48:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:07,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:07,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:07,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:07,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:07,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:07,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:07,400 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:07,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:07,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:07,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:07,571 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:07,747 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:48:07,752 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:07,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:07,948 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-03-11 14:48:07,952 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:07,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:08,185 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:48:08,190 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:08,378 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:08,384 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:08,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:08,549 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:08,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142378793] [2021-03-11 14:48:08,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:08,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:08,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512335464] [2021-03-11 14:48:08,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:08,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:08,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:08,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:08,552 INFO L87 Difference]: Start difference. First operand 1568 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:09,233 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:09,287 INFO L93 Difference]: Finished difference Result 2896 states and 11474 transitions. [2021-03-11 14:48:09,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:09,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:09,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:09,304 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:48:09,304 INFO L226 Difference]: Without dead ends: 2878 [2021-03-11 14:48:09,305 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1473.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:09,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-11 14:48:09,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 1571. [2021-03-11 14:48:09,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4726114649681525) internal successors, (7022), 1570 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7022 transitions. [2021-03-11 14:48:09,358 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7022 transitions. Word has length 28 [2021-03-11 14:48:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:09,358 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7022 transitions. [2021-03-11 14:48:09,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7022 transitions. [2021-03-11 14:48:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:09,362 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:09,362 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:09,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable942 [2021-03-11 14:48:09,362 INFO L428 AbstractCegarLoop]: === Iteration 944 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:09,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:09,362 INFO L82 PathProgramCache]: Analyzing trace with hash -236912988, now seen corresponding path program 936 times [2021-03-11 14:48:09,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:09,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782292819] [2021-03-11 14:48:09,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:09,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:09,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:09,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:09,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:09,413 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:09,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:09,464 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:09,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:09,534 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:09,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:09,638 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:09,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:09,852 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-11 14:48:09,857 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:09,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:10,057 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-03-11 14:48:10,062 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:10,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:10,319 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-03-11 14:48:10,325 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:10,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:10,539 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:10,545 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:10,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:10,737 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:10,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782292819] [2021-03-11 14:48:10,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:10,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:10,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450390502] [2021-03-11 14:48:10,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:10,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:10,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:10,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:10,740 INFO L87 Difference]: Start difference. First operand 1571 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:11,659 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:11,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:11,784 INFO L93 Difference]: Finished difference Result 2891 states and 11461 transitions. [2021-03-11 14:48:11,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:11,802 INFO L225 Difference]: With dead ends: 2891 [2021-03-11 14:48:11,802 INFO L226 Difference]: Without dead ends: 2865 [2021-03-11 14:48:11,802 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1577.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:11,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2021-03-11 14:48:11,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 1558. [2021-03-11 14:48:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 4.493256262042389) internal successors, (6996), 1557 states have internal predecessors, (6996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 6996 transitions. [2021-03-11 14:48:11,867 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 6996 transitions. Word has length 28 [2021-03-11 14:48:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:11,867 INFO L480 AbstractCegarLoop]: Abstraction has 1558 states and 6996 transitions. [2021-03-11 14:48:11,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:11,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 6996 transitions. [2021-03-11 14:48:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:11,870 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:11,870 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:11,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable943 [2021-03-11 14:48:11,870 INFO L428 AbstractCegarLoop]: === Iteration 945 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:11,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:11,870 INFO L82 PathProgramCache]: Analyzing trace with hash -286108470, now seen corresponding path program 937 times [2021-03-11 14:48:11,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:11,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934817136] [2021-03-11 14:48:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:11,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:11,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:11,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:11,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:11,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:11,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:11,986 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:11,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:12,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:12,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:12,176 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:12,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:12,384 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:12,389 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:48:12,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:48:12,547 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-03-11 14:48:12,553 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:12,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:12,845 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:12,851 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:13,054 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:13,060 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:13,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:13,266 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:13,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934817136] [2021-03-11 14:48:13,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:13,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:13,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321439941] [2021-03-11 14:48:13,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:13,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:13,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:13,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:13,270 INFO L87 Difference]: Start difference. First operand 1558 states and 6996 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:14,302 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:14,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:14,378 INFO L93 Difference]: Finished difference Result 2919 states and 11554 transitions. [2021-03-11 14:48:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:14,386 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:14,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:14,396 INFO L225 Difference]: With dead ends: 2919 [2021-03-11 14:48:14,396 INFO L226 Difference]: Without dead ends: 2903 [2021-03-11 14:48:14,396 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1620.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:14,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-03-11 14:48:14,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1578. [2021-03-11 14:48:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.4755865567533295) internal successors, (7058), 1577 states have internal predecessors, (7058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7058 transitions. [2021-03-11 14:48:14,455 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7058 transitions. Word has length 28 [2021-03-11 14:48:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:14,456 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7058 transitions. [2021-03-11 14:48:14,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7058 transitions. [2021-03-11 14:48:14,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:14,459 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:14,459 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:14,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable944 [2021-03-11 14:48:14,459 INFO L428 AbstractCegarLoop]: === Iteration 946 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:14,459 INFO L82 PathProgramCache]: Analyzing trace with hash 458594028, now seen corresponding path program 938 times [2021-03-11 14:48:14,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:14,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521690513] [2021-03-11 14:48:14,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:14,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:14,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:14,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:14,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:14,517 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:14,582 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:14,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:14,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:14,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:14,771 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:14,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:14,955 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:14,959 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:48:14,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:48:15,109 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:15,375 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:15,380 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:15,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:15,578 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:15,584 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:15,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:15,776 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:15,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521690513] [2021-03-11 14:48:15,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:15,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:15,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629549945] [2021-03-11 14:48:15,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:15,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:15,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:15,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:15,780 INFO L87 Difference]: Start difference. First operand 1578 states and 7058 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:16,428 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:16,506 INFO L93 Difference]: Finished difference Result 2923 states and 11555 transitions. [2021-03-11 14:48:16,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:16,514 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:16,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:16,524 INFO L225 Difference]: With dead ends: 2923 [2021-03-11 14:48:16,524 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:48:16,524 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1428.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:48:16,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1571. [2021-03-11 14:48:16,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.4828025477707) internal successors, (7038), 1570 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7038 transitions. [2021-03-11 14:48:16,582 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7038 transitions. Word has length 28 [2021-03-11 14:48:16,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:16,582 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7038 transitions. [2021-03-11 14:48:16,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7038 transitions. [2021-03-11 14:48:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:16,585 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:16,585 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:16,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable945 [2021-03-11 14:48:16,586 INFO L428 AbstractCegarLoop]: === Iteration 947 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:16,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:16,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1324832488, now seen corresponding path program 939 times [2021-03-11 14:48:16,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:16,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435049562] [2021-03-11 14:48:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:16,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:16,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:16,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:16,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:16,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:16,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:16,728 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:16,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:16,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:16,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:16,910 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:16,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:17,094 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:17,099 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:48:17,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:48:17,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:17,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:17,410 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-11 14:48:17,415 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:17,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:17,610 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:17,616 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:17,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:17,790 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:17,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:17,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435049562] [2021-03-11 14:48:17,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:17,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:17,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492107951] [2021-03-11 14:48:17,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:17,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:17,794 INFO L87 Difference]: Start difference. First operand 1571 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:18,511 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:18,570 INFO L93 Difference]: Finished difference Result 2916 states and 11542 transitions. [2021-03-11 14:48:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:18,577 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:18,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:18,586 INFO L225 Difference]: With dead ends: 2916 [2021-03-11 14:48:18,586 INFO L226 Difference]: Without dead ends: 2900 [2021-03-11 14:48:18,586 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1405.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2021-03-11 14:48:18,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 1577. [2021-03-11 14:48:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 4.472715736040609) internal successors, (7049), 1576 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 7049 transitions. [2021-03-11 14:48:18,640 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 7049 transitions. Word has length 28 [2021-03-11 14:48:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:18,640 INFO L480 AbstractCegarLoop]: Abstraction has 1577 states and 7049 transitions. [2021-03-11 14:48:18,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:18,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 7049 transitions. [2021-03-11 14:48:18,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:18,643 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:18,643 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:18,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable946 [2021-03-11 14:48:18,643 INFO L428 AbstractCegarLoop]: === Iteration 948 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:18,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:18,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1480729812, now seen corresponding path program 940 times [2021-03-11 14:48:18,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:18,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018542309] [2021-03-11 14:48:18,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:18,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:18,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:18,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:18,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:18,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:18,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:18,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:18,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:18,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:18,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:18,924 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:18,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:19,097 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:19,102 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:48:19,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:48:19,246 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:19,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:19,409 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-11 14:48:19,414 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:19,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:19,606 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:19,611 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:19,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:19,786 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:19,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:19,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018542309] [2021-03-11 14:48:19,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:19,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:19,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096908241] [2021-03-11 14:48:19,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:19,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:19,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:19,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:19,789 INFO L87 Difference]: Start difference. First operand 1577 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:20,518 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:20,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:20,590 INFO L93 Difference]: Finished difference Result 2918 states and 11540 transitions. [2021-03-11 14:48:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:20,597 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:20,606 INFO L225 Difference]: With dead ends: 2918 [2021-03-11 14:48:20,606 INFO L226 Difference]: Without dead ends: 2894 [2021-03-11 14:48:20,606 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1371.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:20,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-03-11 14:48:20,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 1571. [2021-03-11 14:48:20,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.478980891719745) internal successors, (7032), 1570 states have internal predecessors, (7032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7032 transitions. [2021-03-11 14:48:20,658 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7032 transitions. Word has length 28 [2021-03-11 14:48:20,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:20,658 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7032 transitions. [2021-03-11 14:48:20,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:20,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7032 transitions. [2021-03-11 14:48:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:20,662 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:20,662 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:20,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable947 [2021-03-11 14:48:20,662 INFO L428 AbstractCegarLoop]: === Iteration 949 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:20,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:20,662 INFO L82 PathProgramCache]: Analyzing trace with hash -614491352, now seen corresponding path program 941 times [2021-03-11 14:48:20,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:20,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879719037] [2021-03-11 14:48:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:20,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:20,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:20,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:20,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:20,712 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:20,771 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:20,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:20,839 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:20,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:20,932 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:20,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:21,110 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:21,115 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:48:21,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:48:21,263 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:48:21,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:21,433 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-11 14:48:21,438 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:21,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:21,612 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:21,618 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:21,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:21,765 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:21,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879719037] [2021-03-11 14:48:21,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:21,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:21,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333564369] [2021-03-11 14:48:21,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:21,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:21,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:21,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:21,768 INFO L87 Difference]: Start difference. First operand 1571 states and 7032 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:22,363 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:22,423 INFO L93 Difference]: Finished difference Result 2928 states and 11559 transitions. [2021-03-11 14:48:22,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:22,430 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:22,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:22,439 INFO L225 Difference]: With dead ends: 2928 [2021-03-11 14:48:22,439 INFO L226 Difference]: Without dead ends: 2908 [2021-03-11 14:48:22,440 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1200.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-03-11 14:48:22,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 1581. [2021-03-11 14:48:22,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 4.461392405063291) internal successors, (7049), 1580 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 7049 transitions. [2021-03-11 14:48:22,496 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 7049 transitions. Word has length 28 [2021-03-11 14:48:22,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:22,496 INFO L480 AbstractCegarLoop]: Abstraction has 1581 states and 7049 transitions. [2021-03-11 14:48:22,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 7049 transitions. [2021-03-11 14:48:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:22,500 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:22,500 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:22,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable948 [2021-03-11 14:48:22,500 INFO L428 AbstractCegarLoop]: === Iteration 950 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:22,500 INFO L82 PathProgramCache]: Analyzing trace with hash 130211146, now seen corresponding path program 942 times [2021-03-11 14:48:22,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:22,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822082798] [2021-03-11 14:48:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:22,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:22,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:22,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:22,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:22,555 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:22,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:22,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:22,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:22,674 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:22,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:22,752 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:22,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:22,919 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:22,924 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:48:22,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:48:23,076 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:48:23,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:23,251 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-11 14:48:23,257 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:23,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:23,456 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:23,461 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:23,642 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:23,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822082798] [2021-03-11 14:48:23,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:23,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:23,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949576265] [2021-03-11 14:48:23,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:23,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:23,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:23,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:23,646 INFO L87 Difference]: Start difference. First operand 1581 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:24,370 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:24,433 INFO L93 Difference]: Finished difference Result 2926 states and 11547 transitions. [2021-03-11 14:48:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:24,439 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:24,447 INFO L225 Difference]: With dead ends: 2926 [2021-03-11 14:48:24,447 INFO L226 Difference]: Without dead ends: 2890 [2021-03-11 14:48:24,447 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1378.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:24,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-03-11 14:48:24,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1563. [2021-03-11 14:48:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.489116517285531) internal successors, (7012), 1562 states have internal predecessors, (7012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:24,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7012 transitions. [2021-03-11 14:48:24,497 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7012 transitions. Word has length 28 [2021-03-11 14:48:24,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:24,498 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7012 transitions. [2021-03-11 14:48:24,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7012 transitions. [2021-03-11 14:48:24,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:24,500 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:24,500 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:24,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable949 [2021-03-11 14:48:24,501 INFO L428 AbstractCegarLoop]: === Iteration 951 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:24,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1224569734, now seen corresponding path program 943 times [2021-03-11 14:48:24,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:24,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204155309] [2021-03-11 14:48:24,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:24,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:24,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:24,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:24,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:24,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:24,591 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:24,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:24,662 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:24,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:24,756 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:24,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:24,931 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:24,936 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:48:24,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:25,159 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:48:25,164 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:25,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:25,421 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:25,426 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:25,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:25,612 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:25,618 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:25,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:25,806 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:25,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204155309] [2021-03-11 14:48:25,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:25,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:25,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544269092] [2021-03-11 14:48:25,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:25,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:25,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:25,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:25,810 INFO L87 Difference]: Start difference. First operand 1563 states and 7012 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:26,550 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:26,615 INFO L93 Difference]: Finished difference Result 2901 states and 11500 transitions. [2021-03-11 14:48:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:26,631 INFO L225 Difference]: With dead ends: 2901 [2021-03-11 14:48:26,631 INFO L226 Difference]: Without dead ends: 2885 [2021-03-11 14:48:26,631 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1515.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:26,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2021-03-11 14:48:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1574. [2021-03-11 14:48:26,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.474888747616021) internal successors, (7039), 1573 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7039 transitions. [2021-03-11 14:48:26,685 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7039 transitions. Word has length 28 [2021-03-11 14:48:26,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:26,685 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7039 transitions. [2021-03-11 14:48:26,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7039 transitions. [2021-03-11 14:48:26,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:26,688 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:26,688 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:26,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable950 [2021-03-11 14:48:26,688 INFO L428 AbstractCegarLoop]: === Iteration 952 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:26,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:26,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1969272232, now seen corresponding path program 944 times [2021-03-11 14:48:26,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:26,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149278661] [2021-03-11 14:48:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:26,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:26,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:26,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:26,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:26,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:26,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:26,793 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:26,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:26,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:26,961 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:26,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:27,137 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:27,142 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:48:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:27,359 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:48:27,365 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:27,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:27,632 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:27,639 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:27,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:27,840 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:27,846 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:27,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:28,026 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:28,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149278661] [2021-03-11 14:48:28,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:28,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:28,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876799858] [2021-03-11 14:48:28,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:28,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:28,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:28,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:28,030 INFO L87 Difference]: Start difference. First operand 1574 states and 7039 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:28,635 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:28,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:28,702 INFO L93 Difference]: Finished difference Result 2905 states and 11501 transitions. [2021-03-11 14:48:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:28,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:28,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:28,718 INFO L225 Difference]: With dead ends: 2905 [2021-03-11 14:48:28,718 INFO L226 Difference]: Without dead ends: 2878 [2021-03-11 14:48:28,719 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1426.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-11 14:48:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 1567. [2021-03-11 14:48:28,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.484035759897829) internal successors, (7022), 1566 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7022 transitions. [2021-03-11 14:48:28,771 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7022 transitions. Word has length 28 [2021-03-11 14:48:28,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:28,771 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7022 transitions. [2021-03-11 14:48:28,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:28,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7022 transitions. [2021-03-11 14:48:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:28,774 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:28,774 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:28,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable951 [2021-03-11 14:48:28,775 INFO L428 AbstractCegarLoop]: === Iteration 953 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:28,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:28,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1902784246, now seen corresponding path program 945 times [2021-03-11 14:48:28,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:28,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990116786] [2021-03-11 14:48:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:28,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:28,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:28,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:28,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:28,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:28,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:28,879 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:28,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:28,956 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:28,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:29,043 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:29,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:29,220 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:29,224 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:48:29,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:29,433 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:48:29,438 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:29,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:29,687 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:29,693 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:29,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:29,888 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:29,893 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:29,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:30,064 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:30,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990116786] [2021-03-11 14:48:30,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:30,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:30,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017132775] [2021-03-11 14:48:30,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:30,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:30,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:30,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:30,068 INFO L87 Difference]: Start difference. First operand 1567 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:30,964 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:31,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:31,051 INFO L93 Difference]: Finished difference Result 2890 states and 11472 transitions. [2021-03-11 14:48:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:31,059 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:31,070 INFO L225 Difference]: With dead ends: 2890 [2021-03-11 14:48:31,070 INFO L226 Difference]: Without dead ends: 2874 [2021-03-11 14:48:31,070 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1512.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:31,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2021-03-11 14:48:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 1570. [2021-03-11 14:48:31,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 4.478648820905035) internal successors, (7027), 1569 states have internal predecessors, (7027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 7027 transitions. [2021-03-11 14:48:31,126 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 7027 transitions. Word has length 28 [2021-03-11 14:48:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:31,127 INFO L480 AbstractCegarLoop]: Abstraction has 1570 states and 7027 transitions. [2021-03-11 14:48:31,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 7027 transitions. [2021-03-11 14:48:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:31,130 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:31,130 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:31,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable952 [2021-03-11 14:48:31,130 INFO L428 AbstractCegarLoop]: === Iteration 954 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:31,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:31,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1310591162, now seen corresponding path program 946 times [2021-03-11 14:48:31,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:31,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613290088] [2021-03-11 14:48:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:31,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:31,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:31,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:31,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:31,192 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:31,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:31,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:31,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:31,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:31,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:31,454 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:31,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:31,680 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:31,686 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:48:31,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:31,955 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:48:31,961 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:31,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:32,255 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:32,261 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:32,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:32,459 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:32,464 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:32,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:32,651 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:32,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613290088] [2021-03-11 14:48:32,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:32,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:32,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28890779] [2021-03-11 14:48:32,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:32,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:32,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:32,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:32,656 INFO L87 Difference]: Start difference. First operand 1570 states and 7027 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:33,422 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:33,497 INFO L93 Difference]: Finished difference Result 2887 states and 11463 transitions. [2021-03-11 14:48:33,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:33,503 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:33,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:33,511 INFO L225 Difference]: With dead ends: 2887 [2021-03-11 14:48:33,512 INFO L226 Difference]: Without dead ends: 2871 [2021-03-11 14:48:33,512 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1696.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-03-11 14:48:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1567. [2021-03-11 14:48:33,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 4.482120051085569) internal successors, (7019), 1566 states have internal predecessors, (7019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 7019 transitions. [2021-03-11 14:48:33,565 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 7019 transitions. Word has length 28 [2021-03-11 14:48:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:33,565 INFO L480 AbstractCegarLoop]: Abstraction has 1567 states and 7019 transitions. [2021-03-11 14:48:33,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 7019 transitions. [2021-03-11 14:48:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:33,569 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:33,569 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:33,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable953 [2021-03-11 14:48:33,569 INFO L428 AbstractCegarLoop]: === Iteration 955 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:33,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1147578644, now seen corresponding path program 947 times [2021-03-11 14:48:33,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:33,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279339272] [2021-03-11 14:48:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:33,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:33,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:33,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:33,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:33,623 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:33,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:33,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:33,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:33,758 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:33,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:33,867 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:33,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:34,068 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:34,073 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:48:34,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:34,304 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:48:34,309 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:34,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:34,533 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:34,539 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:34,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:34,742 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:34,747 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:34,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:34,925 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:34,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279339272] [2021-03-11 14:48:34,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:34,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:34,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118954578] [2021-03-11 14:48:34,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:34,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:34,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:34,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:34,929 INFO L87 Difference]: Start difference. First operand 1567 states and 7019 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:35,493 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:35,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:35,566 INFO L93 Difference]: Finished difference Result 2899 states and 11485 transitions. [2021-03-11 14:48:35,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:35,573 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:35,582 INFO L225 Difference]: With dead ends: 2899 [2021-03-11 14:48:35,583 INFO L226 Difference]: Without dead ends: 2879 [2021-03-11 14:48:35,583 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1448.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:35,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-03-11 14:48:35,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1571. [2021-03-11 14:48:35,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.474522292993631) internal successors, (7025), 1570 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7025 transitions. [2021-03-11 14:48:35,637 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7025 transitions. Word has length 28 [2021-03-11 14:48:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:35,637 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7025 transitions. [2021-03-11 14:48:35,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7025 transitions. [2021-03-11 14:48:35,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:35,640 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:35,640 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:35,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable954 [2021-03-11 14:48:35,640 INFO L428 AbstractCegarLoop]: === Iteration 956 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:35,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1383938280, now seen corresponding path program 948 times [2021-03-11 14:48:35,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:35,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367389363] [2021-03-11 14:48:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:35,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:35,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:35,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:35,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:35,691 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:35,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:35,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:35,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:35,820 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:35,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:35,914 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:35,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:36,079 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:36,083 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-11 14:48:36,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:36,272 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-03-11 14:48:36,277 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:36,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:36,495 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:36,499 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:36,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:36,646 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:36,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:36,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:36,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367389363] [2021-03-11 14:48:36,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:36,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:36,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584985730] [2021-03-11 14:48:36,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:36,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:36,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:36,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:36,781 INFO L87 Difference]: Start difference. First operand 1571 states and 7025 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:37,306 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:37,377 INFO L93 Difference]: Finished difference Result 2892 states and 11468 transitions. [2021-03-11 14:48:37,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:37,383 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:37,390 INFO L225 Difference]: With dead ends: 2892 [2021-03-11 14:48:37,390 INFO L226 Difference]: Without dead ends: 2871 [2021-03-11 14:48:37,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1291.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-03-11 14:48:37,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1563. [2021-03-11 14:48:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.486555697823303) internal successors, (7008), 1562 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:37,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7008 transitions. [2021-03-11 14:48:37,437 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7008 transitions. Word has length 28 [2021-03-11 14:48:37,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:37,437 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7008 transitions. [2021-03-11 14:48:37,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7008 transitions. [2021-03-11 14:48:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:37,440 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:37,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:37,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable955 [2021-03-11 14:48:37,440 INFO L428 AbstractCegarLoop]: === Iteration 957 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:37,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1133860380, now seen corresponding path program 949 times [2021-03-11 14:48:37,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:37,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714592874] [2021-03-11 14:48:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:37,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:37,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:37,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:37,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:37,480 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:37,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:37,520 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:37,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:37,577 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:37,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:37,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:37,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:37,770 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:37,774 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:48:37,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:48:37,930 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:48:37,933 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:37,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:38,060 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:38,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:38,221 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:38,225 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:38,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:38,370 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:38,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714592874] [2021-03-11 14:48:38,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:38,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:38,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587873491] [2021-03-11 14:48:38,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:38,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:38,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:38,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:38,373 INFO L87 Difference]: Start difference. First operand 1563 states and 7008 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:38,955 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:39,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:39,006 INFO L93 Difference]: Finished difference Result 2893 states and 11481 transitions. [2021-03-11 14:48:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:39,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:39,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:39,019 INFO L225 Difference]: With dead ends: 2893 [2021-03-11 14:48:39,019 INFO L226 Difference]: Without dead ends: 2877 [2021-03-11 14:48:39,019 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1098.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:39,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2021-03-11 14:48:39,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 1572. [2021-03-11 14:48:39,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.474856779121579) internal successors, (7030), 1571 states have internal predecessors, (7030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7030 transitions. [2021-03-11 14:48:39,069 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7030 transitions. Word has length 28 [2021-03-11 14:48:39,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:39,069 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7030 transitions. [2021-03-11 14:48:39,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7030 transitions. [2021-03-11 14:48:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:39,072 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:39,072 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:39,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable956 [2021-03-11 14:48:39,072 INFO L428 AbstractCegarLoop]: === Iteration 958 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:39,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:39,072 INFO L82 PathProgramCache]: Analyzing trace with hash 355544616, now seen corresponding path program 950 times [2021-03-11 14:48:39,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:39,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026874000] [2021-03-11 14:48:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:39,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:39,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:39,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:39,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:39,112 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:39,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:39,156 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:39,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:39,215 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:39,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:39,290 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:39,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:39,435 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:39,439 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:48:39,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:48:39,613 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:48:39,618 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:39,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:39,758 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:39,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:39,913 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:40,059 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:40,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026874000] [2021-03-11 14:48:40,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:40,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:40,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958734901] [2021-03-11 14:48:40,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:40,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:40,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:40,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:40,061 INFO L87 Difference]: Start difference. First operand 1572 states and 7030 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:40,743 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:40,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:40,799 INFO L93 Difference]: Finished difference Result 2895 states and 11479 transitions. [2021-03-11 14:48:40,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:40,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:40,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:40,813 INFO L225 Difference]: With dead ends: 2895 [2021-03-11 14:48:40,813 INFO L226 Difference]: Without dead ends: 2871 [2021-03-11 14:48:40,813 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1176.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:40,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-03-11 14:48:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1566. [2021-03-11 14:48:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.4830670926517575) internal successors, (7016), 1565 states have internal predecessors, (7016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7016 transitions. [2021-03-11 14:48:40,863 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7016 transitions. Word has length 28 [2021-03-11 14:48:40,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:40,863 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7016 transitions. [2021-03-11 14:48:40,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7016 transitions. [2021-03-11 14:48:40,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:40,866 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:40,866 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:40,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable957 [2021-03-11 14:48:40,866 INFO L428 AbstractCegarLoop]: === Iteration 959 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:40,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:40,866 INFO L82 PathProgramCache]: Analyzing trace with hash 23249832, now seen corresponding path program 951 times [2021-03-11 14:48:40,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:40,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187695561] [2021-03-11 14:48:40,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:40,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:40,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:40,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:40,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:40,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:40,954 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:40,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:41,013 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:41,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:41,088 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:41,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:41,245 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:41,249 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:48:41,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:48:41,445 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:48:41,449 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:41,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:41,657 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:41,661 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:41,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:41,821 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:41,825 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:41,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:41,968 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:41,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187695561] [2021-03-11 14:48:41,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:41,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:41,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277570234] [2021-03-11 14:48:41,970 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:41,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:41,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:41,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:41,971 INFO L87 Difference]: Start difference. First operand 1566 states and 7016 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:42,558 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:42,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:42,610 INFO L93 Difference]: Finished difference Result 2885 states and 11459 transitions. [2021-03-11 14:48:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:42,616 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:42,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:42,624 INFO L225 Difference]: With dead ends: 2885 [2021-03-11 14:48:42,624 INFO L226 Difference]: Without dead ends: 2869 [2021-03-11 14:48:42,624 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1290.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:42,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2021-03-11 14:48:42,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 1569. [2021-03-11 14:48:42,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.477678571428571) internal successors, (7021), 1568 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7021 transitions. [2021-03-11 14:48:42,674 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7021 transitions. Word has length 28 [2021-03-11 14:48:42,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:42,674 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7021 transitions. [2021-03-11 14:48:42,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:42,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7021 transitions. [2021-03-11 14:48:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:42,677 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:42,677 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:42,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable958 [2021-03-11 14:48:42,677 INFO L428 AbstractCegarLoop]: === Iteration 960 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:42,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:42,677 INFO L82 PathProgramCache]: Analyzing trace with hash 615442916, now seen corresponding path program 952 times [2021-03-11 14:48:42,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:42,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71230883] [2021-03-11 14:48:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:42,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:42,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:42,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:42,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:42,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:42,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:42,764 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:42,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:42,820 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:42,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:42,892 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:42,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:43,045 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:43,049 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:48:43,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:48:43,238 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:48:43,242 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:43,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:43,478 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:48:43,483 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:43,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:43,646 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:43,651 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:43,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:43,805 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:43,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71230883] [2021-03-11 14:48:43,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:43,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:43,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982763145] [2021-03-11 14:48:43,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:43,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:43,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:43,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:43,808 INFO L87 Difference]: Start difference. First operand 1569 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:44,455 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:44,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:44,511 INFO L93 Difference]: Finished difference Result 2882 states and 11450 transitions. [2021-03-11 14:48:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:44,516 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:44,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:44,522 INFO L225 Difference]: With dead ends: 2882 [2021-03-11 14:48:44,522 INFO L226 Difference]: Without dead ends: 2866 [2021-03-11 14:48:44,522 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1282.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:44,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2021-03-11 14:48:44,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 1566. [2021-03-11 14:48:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 4.481150159744409) internal successors, (7013), 1565 states have internal predecessors, (7013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 7013 transitions. [2021-03-11 14:48:44,576 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 7013 transitions. Word has length 28 [2021-03-11 14:48:44,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:44,576 INFO L480 AbstractCegarLoop]: Abstraction has 1566 states and 7013 transitions. [2021-03-11 14:48:44,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 7013 transitions. [2021-03-11 14:48:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:44,579 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:44,579 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:44,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable959 [2021-03-11 14:48:44,579 INFO L428 AbstractCegarLoop]: === Iteration 961 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:44,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:44,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1533661036, now seen corresponding path program 953 times [2021-03-11 14:48:44,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:44,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160348293] [2021-03-11 14:48:44,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:44,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:44,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:44,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:44,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:44,622 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:44,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:44,673 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:44,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:44,743 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:44,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:44,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:44,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:45,002 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:45,007 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:48:45,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:48:45,184 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:48:45,188 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:45,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:45,384 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:45,389 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:45,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:45,551 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:48:45,555 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:45,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:45,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160348293] [2021-03-11 14:48:45,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:45,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:45,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136577118] [2021-03-11 14:48:45,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:45,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:45,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:45,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:45,691 INFO L87 Difference]: Start difference. First operand 1566 states and 7013 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:46,222 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:46,268 INFO L93 Difference]: Finished difference Result 2889 states and 11464 transitions. [2021-03-11 14:48:46,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:46,274 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:46,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:46,281 INFO L225 Difference]: With dead ends: 2889 [2021-03-11 14:48:46,281 INFO L226 Difference]: Without dead ends: 2871 [2021-03-11 14:48:46,281 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1296.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:46,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-03-11 14:48:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1569. [2021-03-11 14:48:46,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.475765306122449) internal successors, (7018), 1568 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:46,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7018 transitions. [2021-03-11 14:48:46,333 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7018 transitions. Word has length 28 [2021-03-11 14:48:46,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:46,333 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7018 transitions. [2021-03-11 14:48:46,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:46,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7018 transitions. [2021-03-11 14:48:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:46,336 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:46,336 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:46,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable960 [2021-03-11 14:48:46,336 INFO L428 AbstractCegarLoop]: === Iteration 962 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:46,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:46,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1709534504, now seen corresponding path program 954 times [2021-03-11 14:48:46,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:46,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074472440] [2021-03-11 14:48:46,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:46,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:46,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:46,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:46,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:46,375 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:46,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:46,417 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:46,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:46,476 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:46,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:46,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:46,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:46,689 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:46,693 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 14:48:46,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 14:48:46,870 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-03-11 14:48:46,874 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:46,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:47,059 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:47,063 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:47,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:47,216 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:47,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:47,366 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:48:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:47,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074472440] [2021-03-11 14:48:47,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:47,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:47,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978593885] [2021-03-11 14:48:47,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:47,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:47,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:47,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:47,370 INFO L87 Difference]: Start difference. First operand 1569 states and 7018 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:47,919 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:47,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:47,990 INFO L93 Difference]: Finished difference Result 2884 states and 11451 transitions. [2021-03-11 14:48:47,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:47,995 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:47,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:48,003 INFO L225 Difference]: With dead ends: 2884 [2021-03-11 14:48:48,003 INFO L226 Difference]: Without dead ends: 2865 [2021-03-11 14:48:48,003 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1202.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2021-03-11 14:48:48,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 1563. [2021-03-11 14:48:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.484635083226633) internal successors, (7005), 1562 states have internal predecessors, (7005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7005 transitions. [2021-03-11 14:48:48,078 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7005 transitions. Word has length 28 [2021-03-11 14:48:48,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:48,078 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7005 transitions. [2021-03-11 14:48:48,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7005 transitions. [2021-03-11 14:48:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:48,081 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:48,081 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:48,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable961 [2021-03-11 14:48:48,081 INFO L428 AbstractCegarLoop]: === Iteration 963 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:48,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:48,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1547379300, now seen corresponding path program 955 times [2021-03-11 14:48:48,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:48,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269398234] [2021-03-11 14:48:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:48,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:48,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:48,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:48,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:48,123 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:48,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:48,167 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:48,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:48,226 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:48,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:48,301 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:48,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:48,440 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:48,444 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:48,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:48,596 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2021-03-11 14:48:48,600 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:48:48,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:48,741 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:48,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:48,901 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:48,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:49,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269398234] [2021-03-11 14:48:49,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:49,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:49,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602220198] [2021-03-11 14:48:49,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:49,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:49,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:49,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:49,040 INFO L87 Difference]: Start difference. First operand 1563 states and 7005 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:49,442 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:49,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:49,486 INFO L93 Difference]: Finished difference Result 2916 states and 11524 transitions. [2021-03-11 14:48:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:49,491 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:49,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:49,497 INFO L225 Difference]: With dead ends: 2916 [2021-03-11 14:48:49,497 INFO L226 Difference]: Without dead ends: 2896 [2021-03-11 14:48:49,497 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1023.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:49,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-03-11 14:48:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1578. [2021-03-11 14:48:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 4.46290424857324) internal successors, (7038), 1577 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 7038 transitions. [2021-03-11 14:48:49,545 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 7038 transitions. Word has length 28 [2021-03-11 14:48:49,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:49,546 INFO L480 AbstractCegarLoop]: Abstraction has 1578 states and 7038 transitions. [2021-03-11 14:48:49,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 7038 transitions. [2021-03-11 14:48:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:49,548 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:49,548 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:49,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable962 [2021-03-11 14:48:49,548 INFO L428 AbstractCegarLoop]: === Iteration 964 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:49,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:49,549 INFO L82 PathProgramCache]: Analyzing trace with hash -2002885498, now seen corresponding path program 956 times [2021-03-11 14:48:49,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:49,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873610312] [2021-03-11 14:48:49,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:49,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:49,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:49,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:49,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:49,588 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:49,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:49,629 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:49,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:49,688 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:49,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:49,763 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:49,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:49,904 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:49,908 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:50,045 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2021-03-11 14:48:50,049 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 14:48:50,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 14:48:50,174 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:50,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:50,334 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:50,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:50,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873610312] [2021-03-11 14:48:50,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:50,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:50,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570343387] [2021-03-11 14:48:50,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:50,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:50,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:50,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:50,471 INFO L87 Difference]: Start difference. First operand 1578 states and 7038 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:51,041 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:51,100 INFO L93 Difference]: Finished difference Result 2914 states and 11512 transitions. [2021-03-11 14:48:51,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:51,105 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:51,113 INFO L225 Difference]: With dead ends: 2914 [2021-03-11 14:48:51,113 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:48:51,113 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1112.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:48:51,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1568. [2021-03-11 14:48:51,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.477345245692406) internal successors, (7016), 1567 states have internal predecessors, (7016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7016 transitions. [2021-03-11 14:48:51,162 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7016 transitions. Word has length 28 [2021-03-11 14:48:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:51,162 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7016 transitions. [2021-03-11 14:48:51,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7016 transitions. [2021-03-11 14:48:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:51,165 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:51,165 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:51,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable963 [2021-03-11 14:48:51,165 INFO L428 AbstractCegarLoop]: === Iteration 965 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:51,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1590477784, now seen corresponding path program 957 times [2021-03-11 14:48:51,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:51,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694235812] [2021-03-11 14:48:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:51,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:51,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:51,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:51,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:51,206 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:51,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:51,248 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:51,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:51,305 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:51,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:51,377 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:51,524 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:51,529 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:51,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:51,688 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2021-03-11 14:48:51,691 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:51,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:51,870 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:51,874 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:48:51,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:48:52,032 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:52,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:52,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694235812] [2021-03-11 14:48:52,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:52,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:52,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106314712] [2021-03-11 14:48:52,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:52,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:52,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:52,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:52,176 INFO L87 Difference]: Start difference. First operand 1568 states and 7016 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:52,718 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:48:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:52,771 INFO L93 Difference]: Finished difference Result 2905 states and 11493 transitions. [2021-03-11 14:48:52,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:52,777 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:52,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:52,785 INFO L225 Difference]: With dead ends: 2905 [2021-03-11 14:48:52,785 INFO L226 Difference]: Without dead ends: 2885 [2021-03-11 14:48:52,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1080.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:52,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2021-03-11 14:48:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1572. [2021-03-11 14:48:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 4.4697644812221515) internal successors, (7022), 1571 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 7022 transitions. [2021-03-11 14:48:52,836 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 7022 transitions. Word has length 28 [2021-03-11 14:48:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:52,836 INFO L480 AbstractCegarLoop]: Abstraction has 1572 states and 7022 transitions. [2021-03-11 14:48:52,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 7022 transitions. [2021-03-11 14:48:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:52,838 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:52,838 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:52,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable964 [2021-03-11 14:48:52,839 INFO L428 AbstractCegarLoop]: === Iteration 966 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:52,839 INFO L82 PathProgramCache]: Analyzing trace with hash 941039140, now seen corresponding path program 958 times [2021-03-11 14:48:52,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:52,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474026831] [2021-03-11 14:48:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:52,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:52,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:52,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:52,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:52,882 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:52,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:52,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:52,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:52,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:52,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:53,056 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:53,196 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:53,200 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:53,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:53,367 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2021-03-11 14:48:53,371 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:48:53,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:48:53,542 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:53,546 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:53,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:53,679 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:53,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:53,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474026831] [2021-03-11 14:48:53,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:53,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:53,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642204791] [2021-03-11 14:48:53,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:53,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:53,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:53,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:53,799 INFO L87 Difference]: Start difference. First operand 1572 states and 7022 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:54,331 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:54,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:54,404 INFO L93 Difference]: Finished difference Result 2898 states and 11476 transitions. [2021-03-11 14:48:54,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:54,410 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:54,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:54,418 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:48:54,418 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:48:54,418 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1123.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:48:54,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1568. [2021-03-11 14:48:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.474792597319719) internal successors, (7012), 1567 states have internal predecessors, (7012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:54,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7012 transitions. [2021-03-11 14:48:54,467 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7012 transitions. Word has length 28 [2021-03-11 14:48:54,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:54,467 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7012 transitions. [2021-03-11 14:48:54,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:54,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7012 transitions. [2021-03-11 14:48:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:54,470 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:54,470 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:54,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable965 [2021-03-11 14:48:54,470 INFO L428 AbstractCegarLoop]: === Iteration 967 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:54,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:54,470 INFO L82 PathProgramCache]: Analyzing trace with hash -835272182, now seen corresponding path program 959 times [2021-03-11 14:48:54,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:54,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743984958] [2021-03-11 14:48:54,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:54,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:54,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:54,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:54,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:54,510 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:54,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:54,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:54,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:54,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:54,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:54,678 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:54,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:54,824 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:54,828 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:54,980 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2021-03-11 14:48:54,984 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:54,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:55,168 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:55,172 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:55,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:55,335 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:55,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:55,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743984958] [2021-03-11 14:48:55,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:55,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:55,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998206949] [2021-03-11 14:48:55,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:55,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:55,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:55,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:55,477 INFO L87 Difference]: Start difference. First operand 1568 states and 7012 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:56,041 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-03-11 14:48:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:56,091 INFO L93 Difference]: Finished difference Result 2900 states and 11481 transitions. [2021-03-11 14:48:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:56,096 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:56,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:56,103 INFO L225 Difference]: With dead ends: 2900 [2021-03-11 14:48:56,103 INFO L226 Difference]: Without dead ends: 2882 [2021-03-11 14:48:56,103 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1195.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:56,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-03-11 14:48:56,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1571. [2021-03-11 14:48:56,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 4.469426751592357) internal successors, (7017), 1570 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:56,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 7017 transitions. [2021-03-11 14:48:56,151 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 7017 transitions. Word has length 28 [2021-03-11 14:48:56,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:56,151 INFO L480 AbstractCegarLoop]: Abstraction has 1571 states and 7017 transitions. [2021-03-11 14:48:56,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:56,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 7017 transitions. [2021-03-11 14:48:56,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:56,154 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:56,154 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:56,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable966 [2021-03-11 14:48:56,154 INFO L428 AbstractCegarLoop]: === Iteration 968 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:56,154 INFO L82 PathProgramCache]: Analyzing trace with hash -659398714, now seen corresponding path program 960 times [2021-03-11 14:48:56,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:56,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920324040] [2021-03-11 14:48:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:56,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:56,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:56,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:56,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:56,193 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:56,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:56,235 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:56,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:56,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:56,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:56,360 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 14:48:56,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 14:48:56,506 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-03-11 14:48:56,509 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:56,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:56,668 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2021-03-11 14:48:56,672 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 14:48:56,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 14:48:56,866 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-03-11 14:48:56,871 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:56,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:57,025 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:57,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:57,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:57,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920324040] [2021-03-11 14:48:57,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:57,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:57,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998945159] [2021-03-11 14:48:57,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:57,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:57,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:57,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:57,162 INFO L87 Difference]: Start difference. First operand 1571 states and 7017 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:57,833 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:48:57,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:57,905 INFO L93 Difference]: Finished difference Result 2895 states and 11468 transitions. [2021-03-11 14:48:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:57,910 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:57,916 INFO L225 Difference]: With dead ends: 2895 [2021-03-11 14:48:57,916 INFO L226 Difference]: Without dead ends: 2864 [2021-03-11 14:48:57,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1147.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:57,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-03-11 14:48:57,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1553. [2021-03-11 14:48:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1552 states have (on average 4.498711340206185) internal successors, (6982), 1552 states have internal predecessors, (6982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 6982 transitions. [2021-03-11 14:48:57,963 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 6982 transitions. Word has length 28 [2021-03-11 14:48:57,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:57,963 INFO L480 AbstractCegarLoop]: Abstraction has 1553 states and 6982 transitions. [2021-03-11 14:48:57,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:57,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 6982 transitions. [2021-03-11 14:48:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:57,965 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:57,965 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:57,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable967 [2021-03-11 14:48:57,966 INFO L428 AbstractCegarLoop]: === Iteration 969 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:57,966 INFO L82 PathProgramCache]: Analyzing trace with hash -746362980, now seen corresponding path program 961 times [2021-03-11 14:48:57,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:57,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10249289] [2021-03-11 14:48:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:57,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:57,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:57,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:57,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:58,002 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:58,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:58,038 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:58,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:58,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:58,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:58,162 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:48:58,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:48:58,256 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:48:58,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:48:58,440 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:48:58,444 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:48:58,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:48:58,574 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:48:58,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:48:58,719 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:48:58,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:48:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:48:58,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10249289] [2021-03-11 14:48:58,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:48:58,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:48:58,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144872584] [2021-03-11 14:48:58,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:48:58,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:48:58,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:48:58,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:48:58,847 INFO L87 Difference]: Start difference. First operand 1553 states and 6982 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:59,581 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:48:59,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:48:59,629 INFO L93 Difference]: Finished difference Result 2901 states and 11543 transitions. [2021-03-11 14:48:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:48:59,634 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:48:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:48:59,641 INFO L225 Difference]: With dead ends: 2901 [2021-03-11 14:48:59,641 INFO L226 Difference]: Without dead ends: 2886 [2021-03-11 14:48:59,641 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1051.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:48:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-03-11 14:48:59,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 1574. [2021-03-11 14:48:59,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.490146217418944) internal successors, (7063), 1573 states have internal predecessors, (7063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:59,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7063 transitions. [2021-03-11 14:48:59,691 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7063 transitions. Word has length 28 [2021-03-11 14:48:59,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:48:59,692 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7063 transitions. [2021-03-11 14:48:59,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:48:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7063 transitions. [2021-03-11 14:48:59,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:48:59,694 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:48:59,694 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:48:59,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable968 [2021-03-11 14:48:59,695 INFO L428 AbstractCegarLoop]: === Iteration 970 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:48:59,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:48:59,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1660482, now seen corresponding path program 962 times [2021-03-11 14:48:59,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:48:59,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876235374] [2021-03-11 14:48:59,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:48:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:48:59,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:59,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:48:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:48:59,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:48:59,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:48:59,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:48:59,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:48:59,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:48:59,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:48:59,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:48:59,916 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:48:59,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:00,016 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:49:00,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:49:00,216 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:49:00,221 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:49:00,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:49:00,361 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:00,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:00,518 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:00,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:00,660 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:49:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:00,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876235374] [2021-03-11 14:49:00,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:00,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:00,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734073364] [2021-03-11 14:49:00,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:00,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:00,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:00,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:00,663 INFO L87 Difference]: Start difference. First operand 1574 states and 7063 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:01,397 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:49:01,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:01,458 INFO L93 Difference]: Finished difference Result 2902 states and 11540 transitions. [2021-03-11 14:49:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:01,464 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:01,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:01,471 INFO L225 Difference]: With dead ends: 2902 [2021-03-11 14:49:01,471 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:49:01,471 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1162.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:01,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:49:01,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1569. [2021-03-11 14:49:01,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.495535714285714) internal successors, (7049), 1568 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:01,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7049 transitions. [2021-03-11 14:49:01,521 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7049 transitions. Word has length 28 [2021-03-11 14:49:01,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:01,521 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7049 transitions. [2021-03-11 14:49:01,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7049 transitions. [2021-03-11 14:49:01,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:01,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:01,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:01,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable969 [2021-03-11 14:49:01,524 INFO L428 AbstractCegarLoop]: === Iteration 971 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:01,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:01,524 INFO L82 PathProgramCache]: Analyzing trace with hash 864577978, now seen corresponding path program 963 times [2021-03-11 14:49:01,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:01,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207827814] [2021-03-11 14:49:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:01,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:01,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:01,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:01,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:01,566 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:01,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:01,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:01,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:01,674 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:01,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:01,754 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:01,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:01,863 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:49:01,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:49:02,059 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:49:02,063 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:49:02,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:49:02,291 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-03-11 14:49:02,296 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:02,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:02,465 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:49:02,470 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:02,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:02,628 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:49:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:02,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207827814] [2021-03-11 14:49:02,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:02,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:02,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191905290] [2021-03-11 14:49:02,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:02,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:02,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:02,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:02,631 INFO L87 Difference]: Start difference. First operand 1569 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:03,363 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:49:03,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:03,417 INFO L93 Difference]: Finished difference Result 2906 states and 11547 transitions. [2021-03-11 14:49:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:03,432 INFO L225 Difference]: With dead ends: 2906 [2021-03-11 14:49:03,432 INFO L226 Difference]: Without dead ends: 2891 [2021-03-11 14:49:03,432 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1308.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:03,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2021-03-11 14:49:03,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1575. [2021-03-11 14:49:03,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.485387547649301) internal successors, (7060), 1574 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7060 transitions. [2021-03-11 14:49:03,487 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7060 transitions. Word has length 28 [2021-03-11 14:49:03,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:03,487 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7060 transitions. [2021-03-11 14:49:03,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:03,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7060 transitions. [2021-03-11 14:49:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:03,489 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:03,489 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:03,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable970 [2021-03-11 14:49:03,490 INFO L428 AbstractCegarLoop]: === Iteration 972 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:03,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:03,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1940984322, now seen corresponding path program 964 times [2021-03-11 14:49:03,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:03,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278727214] [2021-03-11 14:49:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:03,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:03,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:03,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:03,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:03,536 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:03,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:03,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:03,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:03,661 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:03,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:03,750 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:03,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:03,864 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:49:03,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:49:04,075 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:49:04,079 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:49:04,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:49:04,288 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-03-11 14:49:04,292 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:49:04,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:49:04,449 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:04,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:04,594 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:49:04,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:04,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278727214] [2021-03-11 14:49:04,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:04,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:04,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741419450] [2021-03-11 14:49:04,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:04,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:04,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:04,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:04,598 INFO L87 Difference]: Start difference. First operand 1575 states and 7060 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:05,125 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:49:05,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:05,190 INFO L93 Difference]: Finished difference Result 2911 states and 11551 transitions. [2021-03-11 14:49:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:05,195 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:05,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:05,203 INFO L225 Difference]: With dead ends: 2911 [2021-03-11 14:49:05,203 INFO L226 Difference]: Without dead ends: 2885 [2021-03-11 14:49:05,203 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1172.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2021-03-11 14:49:05,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1569. [2021-03-11 14:49:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 4.4917091836734695) internal successors, (7043), 1568 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 7043 transitions. [2021-03-11 14:49:05,252 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 7043 transitions. Word has length 28 [2021-03-11 14:49:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:05,253 INFO L480 AbstractCegarLoop]: Abstraction has 1569 states and 7043 transitions. [2021-03-11 14:49:05,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 7043 transitions. [2021-03-11 14:49:05,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:05,255 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:05,255 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:05,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable971 [2021-03-11 14:49:05,255 INFO L428 AbstractCegarLoop]: === Iteration 973 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:05,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1074745862, now seen corresponding path program 965 times [2021-03-11 14:49:05,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:05,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121393950] [2021-03-11 14:49:05,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:05,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:05,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:05,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:05,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:05,296 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:05,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:05,337 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:05,395 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:05,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:05,469 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:05,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:05,569 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:49:05,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:49:05,752 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:49:05,757 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:49:05,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:49:05,971 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:49:05,975 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:05,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:06,132 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-11 14:49:06,136 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:06,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:06,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:06,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121393950] [2021-03-11 14:49:06,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:06,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:06,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887666345] [2021-03-11 14:49:06,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:06,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:06,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:06,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:06,277 INFO L87 Difference]: Start difference. First operand 1569 states and 7043 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:06,905 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:49:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:06,955 INFO L93 Difference]: Finished difference Result 2909 states and 11548 transitions. [2021-03-11 14:49:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:06,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:06,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:06,968 INFO L225 Difference]: With dead ends: 2909 [2021-03-11 14:49:06,968 INFO L226 Difference]: Without dead ends: 2893 [2021-03-11 14:49:06,968 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1192.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-03-11 14:49:07,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1576. [2021-03-11 14:49:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 4.48) internal successors, (7056), 1575 states have internal predecessors, (7056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 7056 transitions. [2021-03-11 14:49:07,018 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 7056 transitions. Word has length 28 [2021-03-11 14:49:07,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:07,018 INFO L480 AbstractCegarLoop]: Abstraction has 1576 states and 7056 transitions. [2021-03-11 14:49:07,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 7056 transitions. [2021-03-11 14:49:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:07,021 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:07,021 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:07,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable972 [2021-03-11 14:49:07,021 INFO L428 AbstractCegarLoop]: === Iteration 974 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:07,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:07,022 INFO L82 PathProgramCache]: Analyzing trace with hash -330043364, now seen corresponding path program 966 times [2021-03-11 14:49:07,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:07,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681131594] [2021-03-11 14:49:07,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:07,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:07,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:07,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:07,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:07,061 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:07,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:07,101 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:07,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:07,156 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:07,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:07,224 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:07,320 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:49:07,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:49:07,495 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-03-11 14:49:07,499 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:49:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:49:07,712 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-11 14:49:07,716 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:49:07,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 14:49:07,882 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:49:07,887 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:07,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:08,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681131594] [2021-03-11 14:49:08,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:08,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:08,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808839517] [2021-03-11 14:49:08,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:08,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:08,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:08,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:08,030 INFO L87 Difference]: Start difference. First operand 1576 states and 7056 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:08,657 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-03-11 14:49:08,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:08,717 INFO L93 Difference]: Finished difference Result 2913 states and 11549 transitions. [2021-03-11 14:49:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:08,723 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:08,730 INFO L225 Difference]: With dead ends: 2913 [2021-03-11 14:49:08,730 INFO L226 Difference]: Without dead ends: 2880 [2021-03-11 14:49:08,730 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1081.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2021-03-11 14:49:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 1563. [2021-03-11 14:49:08,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.498079385403329) internal successors, (7026), 1562 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7026 transitions. [2021-03-11 14:49:08,779 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7026 transitions. Word has length 28 [2021-03-11 14:49:08,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:08,779 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7026 transitions. [2021-03-11 14:49:08,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7026 transitions. [2021-03-11 14:49:08,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:08,782 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:08,782 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:08,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable973 [2021-03-11 14:49:08,782 INFO L428 AbstractCegarLoop]: === Iteration 975 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:08,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:08,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1571576106, now seen corresponding path program 967 times [2021-03-11 14:49:08,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:08,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318284350] [2021-03-11 14:49:08,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:08,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:08,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:08,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:08,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:08,822 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:08,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:08,865 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:08,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:08,923 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:08,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:09,000 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:09,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:09,098 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:49:09,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:49:09,215 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:49:09,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:49:09,350 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:09,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:09,508 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:09,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:09,653 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:49:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:09,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318284350] [2021-03-11 14:49:09,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:09,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:09,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907394693] [2021-03-11 14:49:09,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:09,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:09,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:09,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:09,656 INFO L87 Difference]: Start difference. First operand 1563 states and 7026 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:10,417 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:49:10,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:10,464 INFO L93 Difference]: Finished difference Result 2895 states and 11525 transitions. [2021-03-11 14:49:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:10,470 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:10,478 INFO L225 Difference]: With dead ends: 2895 [2021-03-11 14:49:10,478 INFO L226 Difference]: Without dead ends: 2880 [2021-03-11 14:49:10,478 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1051.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:10,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2021-03-11 14:49:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 1573. [2021-03-11 14:49:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.487277353689567) internal successors, (7054), 1572 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7054 transitions. [2021-03-11 14:49:10,528 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7054 transitions. Word has length 28 [2021-03-11 14:49:10,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:10,528 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7054 transitions. [2021-03-11 14:49:10,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:10,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7054 transitions. [2021-03-11 14:49:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:10,530 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:10,530 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:10,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable974 [2021-03-11 14:49:10,531 INFO L428 AbstractCegarLoop]: === Iteration 976 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:10,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:10,531 INFO L82 PathProgramCache]: Analyzing trace with hash -826873608, now seen corresponding path program 968 times [2021-03-11 14:49:10,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:10,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313063926] [2021-03-11 14:49:10,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:10,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:10,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:10,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:10,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:10,572 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:10,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:10,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:10,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:10,665 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:10,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:10,726 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:10,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:10,809 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:49:10,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:49:10,915 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:49:10,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:49:11,056 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:11,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:11,205 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:11,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:11,345 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-11 14:49:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:11,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313063926] [2021-03-11 14:49:11,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:11,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:11,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013475261] [2021-03-11 14:49:11,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:11,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:11,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:11,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:11,348 INFO L87 Difference]: Start difference. First operand 1573 states and 7054 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:11,935 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:49:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:11,992 INFO L93 Difference]: Finished difference Result 2896 states and 11522 transitions. [2021-03-11 14:49:11,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:11,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:11,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:12,005 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:49:12,005 INFO L226 Difference]: Without dead ends: 2875 [2021-03-11 14:49:12,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 993.0ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:12,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2021-03-11 14:49:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1568. [2021-03-11 14:49:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.492661135928526) internal successors, (7040), 1567 states have internal predecessors, (7040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7040 transitions. [2021-03-11 14:49:12,054 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7040 transitions. Word has length 28 [2021-03-11 14:49:12,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:12,054 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7040 transitions. [2021-03-11 14:49:12,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:12,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7040 transitions. [2021-03-11 14:49:12,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:12,057 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:12,057 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:12,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable975 [2021-03-11 14:49:12,057 INFO L428 AbstractCegarLoop]: === Iteration 977 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:12,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1115076008, now seen corresponding path program 969 times [2021-03-11 14:49:12,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:12,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560882483] [2021-03-11 14:49:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:12,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:12,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:12,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:12,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:12,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:12,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:12,139 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:12,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:12,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:12,277 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:12,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:12,374 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:49:12,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:49:12,478 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:49:12,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:49:12,595 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:12,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:12,737 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:12,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:12,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560882483] [2021-03-11 14:49:12,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:12,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:12,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426036707] [2021-03-11 14:49:12,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:12,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:12,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:12,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:12,875 INFO L87 Difference]: Start difference. First operand 1568 states and 7040 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:13,612 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:49:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:13,665 INFO L93 Difference]: Finished difference Result 2896 states and 11522 transitions. [2021-03-11 14:49:13,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:13,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:13,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:13,679 INFO L225 Difference]: With dead ends: 2896 [2021-03-11 14:49:13,679 INFO L226 Difference]: Without dead ends: 2881 [2021-03-11 14:49:13,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1005.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-03-11 14:49:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1573. [2021-03-11 14:49:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 4.484096692111959) internal successors, (7049), 1572 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 7049 transitions. [2021-03-11 14:49:13,731 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 7049 transitions. Word has length 28 [2021-03-11 14:49:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:13,731 INFO L480 AbstractCegarLoop]: Abstraction has 1573 states and 7049 transitions. [2021-03-11 14:49:13,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 7049 transitions. [2021-03-11 14:49:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:13,734 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:13,734 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:13,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable976 [2021-03-11 14:49:13,734 INFO L428 AbstractCegarLoop]: === Iteration 978 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:13,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:13,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1517238600, now seen corresponding path program 970 times [2021-03-11 14:49:13,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:13,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261023883] [2021-03-11 14:49:13,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:13,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:13,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:13,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:13,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:13,781 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:13,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:13,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:13,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:13,893 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:13,974 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:13,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:14,073 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:49:14,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:49:14,191 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 14:49:14,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 14:49:14,331 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:14,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:14,489 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:14,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:14,630 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:49:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:14,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261023883] [2021-03-11 14:49:14,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:14,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:14,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305872533] [2021-03-11 14:49:14,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:14,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:14,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:14,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:14,633 INFO L87 Difference]: Start difference. First operand 1573 states and 7049 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:15,321 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:49:15,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:15,388 INFO L93 Difference]: Finished difference Result 2898 states and 11521 transitions. [2021-03-11 14:49:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:15,394 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:15,401 INFO L225 Difference]: With dead ends: 2898 [2021-03-11 14:49:15,401 INFO L226 Difference]: Without dead ends: 2876 [2021-03-11 14:49:15,401 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1063.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:15,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2021-03-11 14:49:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 1568. [2021-03-11 14:49:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 4.489470325462667) internal successors, (7035), 1567 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:15,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 7035 transitions. [2021-03-11 14:49:15,452 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 7035 transitions. Word has length 28 [2021-03-11 14:49:15,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:15,452 INFO L480 AbstractCegarLoop]: Abstraction has 1568 states and 7035 transitions. [2021-03-11 14:49:15,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 7035 transitions. [2021-03-11 14:49:15,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:15,454 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:15,454 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:15,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable977 [2021-03-11 14:49:15,455 INFO L428 AbstractCegarLoop]: === Iteration 979 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:15,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:15,455 INFO L82 PathProgramCache]: Analyzing trace with hash -824247832, now seen corresponding path program 971 times [2021-03-11 14:49:15,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:15,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108380089] [2021-03-11 14:49:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:15,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:15,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:15,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:15,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:15,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:15,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:15,557 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:15,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:15,617 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:15,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:15,696 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:15,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:15,789 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:49:15,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:49:15,902 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:49:15,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:49:16,047 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:16,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:16,204 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-11 14:49:16,208 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:16,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:16,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108380089] [2021-03-11 14:49:16,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:16,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:16,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486508769] [2021-03-11 14:49:16,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:16,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:16,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:16,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:16,347 INFO L87 Difference]: Start difference. First operand 1568 states and 7035 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:16,887 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-03-11 14:49:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:16,932 INFO L93 Difference]: Finished difference Result 2899 states and 11524 transitions. [2021-03-11 14:49:16,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:16,938 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:16,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:16,944 INFO L225 Difference]: With dead ends: 2899 [2021-03-11 14:49:16,944 INFO L226 Difference]: Without dead ends: 2883 [2021-03-11 14:49:16,944 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1026.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:16,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-03-11 14:49:16,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1574. [2021-03-11 14:49:16,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 4.479338842975206) internal successors, (7046), 1573 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:16,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 7046 transitions. [2021-03-11 14:49:16,991 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 7046 transitions. Word has length 28 [2021-03-11 14:49:16,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:16,991 INFO L480 AbstractCegarLoop]: Abstraction has 1574 states and 7046 transitions. [2021-03-11 14:49:16,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 7046 transitions. [2021-03-11 14:49:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:16,994 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:16,994 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:16,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable978 [2021-03-11 14:49:16,994 INFO L428 AbstractCegarLoop]: === Iteration 980 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:16,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:16,994 INFO L82 PathProgramCache]: Analyzing trace with hash 93702358, now seen corresponding path program 972 times [2021-03-11 14:49:16,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:16,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823272938] [2021-03-11 14:49:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:17,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:17,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:17,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:17,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:17,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:17,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:17,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:17,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:17,139 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:17,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:17,212 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:17,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:17,305 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 14:49:17,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 14:49:17,424 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 14:49:17,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 14:49:17,553 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:17,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:17,698 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:17,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:17,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823272938] [2021-03-11 14:49:17,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:17,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:17,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071146341] [2021-03-11 14:49:17,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:17,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:17,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:17,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:17,834 INFO L87 Difference]: Start difference. First operand 1574 states and 7046 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:18,422 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-11 14:49:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:18,486 INFO L93 Difference]: Finished difference Result 2900 states and 11520 transitions. [2021-03-11 14:49:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:18,491 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:18,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:18,499 INFO L225 Difference]: With dead ends: 2900 [2021-03-11 14:49:18,499 INFO L226 Difference]: Without dead ends: 2872 [2021-03-11 14:49:18,499 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1008.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:18,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-03-11 14:49:18,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1563. [2021-03-11 14:49:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 4.4948783610755445) internal successors, (7021), 1562 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 7021 transitions. [2021-03-11 14:49:18,547 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 7021 transitions. Word has length 28 [2021-03-11 14:49:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:18,547 INFO L480 AbstractCegarLoop]: Abstraction has 1563 states and 7021 transitions. [2021-03-11 14:49:18,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 7021 transitions. [2021-03-11 14:49:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:18,549 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:18,549 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:18,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable979 [2021-03-11 14:49:18,550 INFO L428 AbstractCegarLoop]: === Iteration 981 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:18,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:18,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1561073002, now seen corresponding path program 973 times [2021-03-11 14:49:18,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:18,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136575793] [2021-03-11 14:49:18,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:18,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:18,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:18,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:18,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:18,589 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:18,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:18,629 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:18,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:18,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:18,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:18,758 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:18,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:18,863 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:49:18,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:49:18,975 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:49:18,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:49:19,180 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-03-11 14:49:19,184 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 14:49:19,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 14:49:19,343 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:49:19,348 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 14:49:19,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 14:49:19,490 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-11 14:49:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:49:19,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136575793] [2021-03-11 14:49:19,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:49:19,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 14:49:19,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863835936] [2021-03-11 14:49:19,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 14:49:19,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:49:19,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 14:49:19,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 14:49:19,493 INFO L87 Difference]: Start difference. First operand 1563 states and 7021 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:20,245 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 14:49:20,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:49:20,299 INFO L93 Difference]: Finished difference Result 2908 states and 11546 transitions. [2021-03-11 14:49:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 14:49:20,305 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-03-11 14:49:20,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:49:20,313 INFO L225 Difference]: With dead ends: 2908 [2021-03-11 14:49:20,313 INFO L226 Difference]: Without dead ends: 2893 [2021-03-11 14:49:20,314 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1125.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-03-11 14:49:20,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-03-11 14:49:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1575. [2021-03-11 14:49:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1574 states have (on average 4.481575603557815) internal successors, (7054), 1574 states have internal predecessors, (7054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 7054 transitions. [2021-03-11 14:49:20,364 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 7054 transitions. Word has length 28 [2021-03-11 14:49:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:49:20,364 INFO L480 AbstractCegarLoop]: Abstraction has 1575 states and 7054 transitions. [2021-03-11 14:49:20,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:49:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 7054 transitions. [2021-03-11 14:49:20,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-11 14:49:20,367 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:49:20,367 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:49:20,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable980 [2021-03-11 14:49:20,367 INFO L428 AbstractCegarLoop]: === Iteration 982 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 14:49:20,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:49:20,367 INFO L82 PathProgramCache]: Analyzing trace with hash -71668006, now seen corresponding path program 974 times [2021-03-11 14:49:20,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:49:20,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373595250] [2021-03-11 14:49:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:49:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:49:20,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:20,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:49:20,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:49:20,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:49:20,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:49:20,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:49:20,449 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 14:49:20,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 14:49:20,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 14:49:20,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 14:49:20,586 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 14:49:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 14:49:20,688 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 14:49:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 14:49:20,802 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 14:49:20,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 14:49:20,984 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2021-03-11 14:49:20,988 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 14:49:20,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 Received shutdown request... [2021-03-11 14:49:21,066 WARN L222 SmtUtils]: Removed 15 from assertion stack [2021-03-11 14:49:21,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable981 [2021-03-11 14:49:21,067 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-11 14:49:21,069 WARN L224 ceAbstractionStarter]: Timeout [2021-03-11 14:49:21,070 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:49:21 BasicIcfg [2021-03-11 14:49:21,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:49:21,070 INFO L168 Benchmark]: Toolchain (without parser) took 788067.47 ms. Allocated memory was 255.9 MB in the beginning and 9.3 GB in the end (delta: 9.0 GB). Free memory was 237.2 MB in the beginning and 6.3 GB in the end (delta: -6.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 16.0 GB. [2021-03-11 14:49:21,070 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 238.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:49:21,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.38 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:49:21,070 INFO L168 Benchmark]: Boogie Preprocessor took 16.70 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.3 MB in the end (delta: 953.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:49:21,071 INFO L168 Benchmark]: RCFGBuilder took 264.24 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 236.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.0 GB. [2021-03-11 14:49:21,071 INFO L168 Benchmark]: TraceAbstraction took 787756.40 ms. Allocated memory was 255.9 MB in the beginning and 9.3 GB in the end (delta: 9.0 GB). Free memory was 236.5 MB in the beginning and 6.3 GB in the end (delta: -6.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 16.0 GB. [2021-03-11 14:49:21,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 238.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.38 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.70 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.3 MB in the end (delta: 953.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 264.24 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 236.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 787756.40 ms. Allocated memory was 255.9 MB in the beginning and 9.3 GB in the end (delta: 9.0 GB). Free memory was 236.5 MB in the beginning and 6.3 GB in the end (delta: -6.1 GB). Peak memory consumption was 2.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 532.6ms, 76 PlacesBefore, 66 PlacesAfterwards, 120 TransitionsBefore, 110 TransitionsAfterwards, 2736 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 11475 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11475, positive: 11475, positive conditional: 0, positive unconditional: 11475, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1488, positive: 1488, positive conditional: 0, positive unconditional: 1488, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1488, positive: 1488, positive conditional: 0, positive unconditional: 1488, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11475, positive: 9987, positive conditional: 0, positive unconditional: 9987, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1488, unknown conditional: 0, unknown unconditional: 1488] , Statistics on independence cache: Total cache size (in pairs): 684, Positive cache size: 684, Positive conditional cache size: 0, Positive unconditional cache size: 684, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 31). Cancelled while BasicCegarLoop was analyzing trace of length 29 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 32 for 21ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 787466.7ms, OverallIterations: 982, TraceHistogramMax: 1, EmptinessCheckTime: 2782.6ms, AutomataDifference: 300951.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2202.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 119969 SDtfs, 176028 SDslu, 318583 SDs, 0 SdLazy, 87031 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60429.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10727 GetRequests, 989 SyntacticMatches, 0 SemanticMatches, 9738 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6811 ImplicationChecksByTransitivity, 491272.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20196occurred in iteration=0, InterpolantAutomatonStates: 10727, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 52062.2ms AutomataMinimizationTime, 981 MinimizatonAttempts, 1321756 StatesRemovedByMinimization, 973 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 265.1ms SsaConstructionTime, 631.9ms SatisfiabilityAnalysisTime, 425307.1ms InterpolantComputationTime, 27468 NumberOfCodeBlocks, 27468 NumberOfCodeBlocksAsserted, 981 NumberOfCheckSat, 26487 ConstructedInterpolants, 0 QuantifiedInterpolants, 951347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 981 InterpolantComputations, 981 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown